Nothing Special   »   [go: up one dir, main page]

WO2015152375A1 - 車両用内燃機関の補機取付け構造 - Google Patents

車両用内燃機関の補機取付け構造 Download PDF

Info

Publication number
WO2015152375A1
WO2015152375A1 PCT/JP2015/060475 JP2015060475W WO2015152375A1 WO 2015152375 A1 WO2015152375 A1 WO 2015152375A1 JP 2015060475 W JP2015060475 W JP 2015060475W WO 2015152375 A1 WO2015152375 A1 WO 2015152375A1
Authority
WO
WIPO (PCT)
Prior art keywords
egr
egr valve
vehicle
air cleaner
internal combustion
Prior art date
Application number
PCT/JP2015/060475
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
聖人 藤阪
加藤　信一郎
Original Assignee
スズキ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2014077675A external-priority patent/JP6331603B2/ja
Priority claimed from JP2014078509A external-priority patent/JP6281386B2/ja
Application filed by スズキ株式会社 filed Critical スズキ株式会社
Priority to DE112015001648.1T priority Critical patent/DE112015001648B4/de
Priority to CN201580004053.3A priority patent/CN106133301B/zh
Publication of WO2015152375A1 publication Critical patent/WO2015152375A1/ja

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/74—Protection from damage, e.g. shielding means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems

Definitions

  • the present invention relates to an auxiliary machine mounting structure for an internal combustion engine for a vehicle, and more particularly to an auxiliary machine mounting structure for an internal combustion engine for a vehicle in which an auxiliary machine including an EGR valve and an EGR cooler is mounted on the internal combustion engine.
  • an internal combustion engine of a vehicle such as an automobile is provided with an auxiliary device such as an exhaust gas recirculation device (EGR).
  • EGR exhaust gas recirculation device
  • This exhaust gas recirculation device guides a part of the exhaust after combustion discharged from the combustion chamber of the internal combustion engine to the exhaust passage to the intake pipe via the EGR pipe, and mixes it with the intake air flowing through the intake pipe into the combustion chamber. It is designed to reflux.
  • the flow rate of the exhaust gas flowing through the EGR pipe is adjusted by an EGR valve provided in the EGR pipe.
  • This exhaust gas recirculation device can mainly reduce nitrogen oxide (NOx) in the exhaust gas, and can improve fuel efficiency when the internal combustion engine is partially loaded.
  • NOx nitrogen oxide
  • An object of the present invention is to provide an auxiliary machine mounting structure for an internal combustion engine for a vehicle that can prevent the reliability of an EGR valve from being lowered.
  • an exhaust gas recirculation device including an EGR pipe that recirculates a part of exhaust gas from an exhaust system member to an intake system member and an auxiliary set for exhaust gas recirculation, and an intake system member.
  • the EGR valve body is configured to include an EGR valve that adjusts the opening of the EGR pipe, and the EGR valve body includes an EGR cooler that cools the exhaust gas flowing through the EGR pipe. And a drive actuator that drives the valve body.
  • the EGR valve and the EGR cooler are arranged side by side in the front-rear direction of the vehicle, and the number of EGR valves and EGR coolers is small.
  • At least one of the internal combustion engines is attached to the vehicle width direction end, an air cleaner is attached to the EGR valve and the EGR cooler via the bracket set above the transmission, and at least the drive actuator of the EGR valve is installed in the vertical direction of the vehicle. It is comprised from what was installed between the transmission and the air cleaner.
  • the bracket set includes a first bracket and a second bracket, a first front side fastening portion is formed at the front end portion in the front-rear direction of the vehicle of the EGR valve, and the air cleaner
  • a second front side fastening portion is formed at the front end portion of the vehicle in the front-rear direction
  • a first rear side fastening portion is formed at the rear end portion in the front-rear direction of the vehicle of the EGR cooler, and a rear end portion of the air cleaner in the front-rear direction of the vehicle
  • a second rear side fastening portion is formed, the first front side fastening portion and the second front side fastening portion are connected via the first bracket, and the first rear side fastening portion and the second rear side fastening portion are connected.
  • the parts may be connected via a second bracket.
  • an EGR cooler includes an EGR cooler body, and an exhaust gas inlet pipe portion that is provided in the EGR cooler body and into which exhaust gas is introduced from an EGR valve.
  • the EGR valve is installed closer to the lower part of the air cleaner than the transmission, the axis of the exhaust gas inlet pipe is inclined outward in the vehicle width direction with respect to the axis of the EGR cooler body, and the axis of the EGR valve is exhausted
  • the EGR valve may be extended below the air cleaner so as to be orthogonal to the axis of the gas inlet pipe, and the drive actuator may be installed on the opposite side of the EGR valve body from the internal combustion engine.
  • the EGR valve main body protrudes forward from the EGR valve main body in the front-rear direction of the vehicle, has a boss portion that constitutes a first front side fastening portion, and the EGR cooler is connected to the EGR pipe.
  • You may have the flange part connected and comprising a 1st back side fastening part.
  • the EGR valve may be inclined upward from the EGR valve body toward the drive actuator in a state where the EGR valve attached to the internal combustion engine is viewed from the horizontal direction.
  • the second front fastening portion of the air cleaner protrudes downward from the lower portion of the air cleaner, and the drive actuator and the second front fastening portion are installed so as to overlap in the longitudinal direction of the vehicle.
  • the front of the actuator in the front-rear direction of the vehicle may be covered by the second front side fastening portion.
  • At least the drive actuator for the EGR valve is installed between the transmission and the air cleaner in the vertical direction of the vehicle.
  • the air cleaner was attached to the EGR valve and the EGR cooler via the bracket set above the transmission. For this reason, it is possible to prevent the bracket set from extending from the internal combustion engine to the air cleaner, and to shorten the dimension of the bracket set. Therefore, it is possible to prevent the bracket set itself from vibrating due to the vibration of the internal combustion engine.
  • an EGR valve and an EGR cooler are installed side by side in the longitudinal direction of the vehicle, and an air cleaner is attached to the EGR valve and the EGR cooler via a bracket.
  • the air cleaner can be supported in a wide range by the EGR valve and the EGR cooler which are relatively rigid and require a relatively large space.
  • the air cleaner can be prevented from vibrating due to the vibration of the internal combustion engine, and the durability of the air cleaner can be prevented from deteriorating.
  • the first front side fastening part of the EGR valve and the second front side fastening part of the air cleaner are connected via the first bracket, and the first rear side fastening part of the EGR cooler and The second rear fastening portion of the air cleaner is connected via the second bracket.
  • the EGR valve and the EGR cooler can be installed between the front end and the rear end of the air cleaner when the air cleaner is viewed from above.
  • a sufficient distance between the front end and the rear end of the air cleaner can be secured, and the air cleaner can be supported in a wide range by the EGR valve and the EGR cooler. Therefore, it is possible to more effectively prevent the air cleaner from vibrating.
  • the EGR valve in the vertical direction of the vehicle, is installed closer to the lower portion of the air cleaner than the transmission, and the axis of the exhaust gas inlet pipe is set to the vehicle width with respect to the axis of the EGR cooler body.
  • the EGR valve extends below the air cleaner so that the axis of the EGR valve is perpendicular to the axis of the exhaust gas inlet pipe, and the drive actuator is placed on the opposite side of the internal combustion engine with respect to the EGR valve body. installed.
  • the EGR valve can be reliably installed near the lower portion of the air cleaner, and in particular, the drive actuator can be reliably covered with the air cleaner. Therefore, for example, when an air hole communicating with the atmosphere is formed in the drive actuator, such as a diaphragm EGR valve, liquid such as water can be prevented from entering the drive actuator from the air hole. As a result, it is possible to prevent liquid from entering the valve body through the drive actuator, and to prevent deterioration and corrosion of the valve body.
  • the first front side fastening part of the EGR valve can be brought close to the second front side fastening part of the air cleaner, and the dimensions of the first bracket can be shortened.
  • the EGR valve main body protrudes forward from the EGR valve main body in the front-rear direction of the vehicle, has the boss portion constituting the first front side fastening portion, and the EGR cooler is connected to the EGR pipe. And having a flange portion constituting the first rear fastening portion.
  • the rigid boss portion and flange portion can be attached to the air cleaner via the first flange and the second flange, and the air cleaner can be stably attached to the EGR valve and the EGR cooler. Therefore, it is possible to more effectively prevent the air cleaner from vibrating due to the vibration of the internal combustion engine, and it is possible to more effectively prevent the durability of the air cleaner from deteriorating.
  • the EGR valve tilts upward from the EGR valve body toward the drive actuator in a state where the EGR valve attached to the internal combustion engine is viewed from the horizontal direction.
  • the drive actuator can be brought close to the bottom of the air cleaner, and the liquid dropped from above can be blocked by the air cleaner. Therefore, when the drive actuator has an air hole or the like, water can be more effectively prevented from entering the drive actuator through the air hole.
  • the liquid that enters from the front of the vehicle during the traveling of the vehicle is second front side fastening portion. Can be blocked by. For this reason, when the drive actuator has an air hole or the like, water can be prevented from entering the drive actuator through the air hole.
  • FIG. 1 is a diagram showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to an embodiment of the present invention, and is a side view of a front portion of the vehicle.
  • FIG. 2 is a diagram showing an auxiliary machine mounting structure for an internal combustion engine for a vehicle according to an embodiment of the present invention, and is a plan view of a front portion of the vehicle.
  • FIG. 3 is a view showing an auxiliary machine mounting structure for an internal combustion engine for a vehicle according to an embodiment of the present invention, and is a front view of the internal combustion engine.
  • FIG. 4 is a view showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to an embodiment of the present invention, and is a rear view of the internal combustion engine.
  • FIG. 1 is a diagram showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to an embodiment of the present invention, and is a side view of a front portion of the vehicle.
  • FIG. 2 is a diagram showing an auxiliary machine mounting structure for an internal combustion engine for
  • FIG. 5 is a view showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to the embodiment of the present invention, and is a view taken in the direction of arrows VV in FIG.
  • FIG. 6 is a view showing an auxiliary machine mounting structure for an internal combustion engine for a vehicle according to an embodiment of the present invention, and is a perspective view of an exhaust gas recirculation device.
  • FIG. 7 is a view showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to the embodiment of the present invention, and is a cross-sectional view taken along the line VII-VII in FIG. FIG.
  • FIG. 8 is a view showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to an embodiment of the present invention, and is a view of the periphery of the exhaust gas recirculation device as viewed from the front.
  • FIG. 9 is a view showing an auxiliary machine mounting structure for a vehicle internal combustion engine according to an embodiment of the present invention, and is a cross-sectional view of an EGR valve.
  • FIG. 1 to 9 are views showing an auxiliary machine mounting structure for an internal combustion engine for a vehicle according to an embodiment of the present invention.
  • the vehicle 1 includes a vehicle body 2.
  • the vehicle body 2 includes a dash panel 3 in front of the vehicle 1 in the front-rear direction.
  • the dash panel 3 divides the vehicle body 2 into an engine room 4 installed in front of the vehicle 1 in the front-rear direction and a vehicle compartment 5 installed in the rear of the vehicle in the front-rear direction.
  • expressions that refer to the front-rear direction such as front and rear are used in the description as directions relative to the front-rear direction of the vehicle 1.
  • An engine 6 as an internal combustion engine is installed in the engine room 4. As shown in FIGS. 1, 3, and 4, a transmission 7 is attached to one end (left end) 6 a of the engine 6 in the vehicle width direction. It has been.
  • the vehicle width direction one end 6a of the engine 6 constitutes the vehicle width direction end of the present invention.
  • the engine 6 is provided with a supercharger 8 and an intake device 9.
  • the intake device 9 includes an air cleaner 10 installed at one end 6 a in the vehicle width direction of the engine 6 and above the transmission 7.
  • the air cleaner 10 purifies air sucked from the front of the vehicle 1 by an intake duct (not shown).
  • the intake device 9 includes an air cleaner outlet pipe 11 for introducing the air purified by the air cleaner 10 into the compressor housing 8a of the supercharger 8.
  • the supercharger 8 is installed in front of the engine 6.
  • the supercharger 8 includes a compressor (not shown) provided inside the compressor housing 8a and a turbine housing 8b containing a turbine (not shown) that is rotated by the pressure of exhaust gas.
  • the intake device 9 includes an intercool line pipe 12.
  • the intercool line pipe 12 is connected to an intercooler (not shown) installed in front of the engine 6.
  • the intake device 9 includes an intake manifold 13.
  • the intake manifold 13 is installed at the rear part of the engine 6.
  • the intake manifold 13 is connected to the intercooler via an intercooler outlet pipe (not shown).
  • the intake manifold 13 introduces intake air introduced from the intercooler through the intercooler outlet into a combustion chamber (not shown) of the engine 6 via an intake port (not shown) of the engine 6.
  • the supercharger 8 supercharges the air introduced into the compressor housing 8a from the air cleaner outlet pipe 11 to the intercool line pipe 12 by a compressor that rotates integrally with the turbine that rotates under the pressure of the exhaust gas.
  • an exhaust manifold 14 is attached in front of the engine 6.
  • the exhaust manifold 14 is connected to the turbine housing 8 b of the supercharger 8. Exhaust gas exhausted from the combustion chamber is introduced into the exhaust manifold 14.
  • a catalytic converter 16 is connected to the turbine housing 8b via an exhaust pipe 15.
  • the exhaust gas discharged from the turbine housing 8 b is introduced into the catalytic converter 16 through the exhaust pipe 15 and purified by the catalytic converter 16.
  • the intake device 9 and the compressor housing 8a of the supercharger 8 constitute an intake system member of the present invention
  • the exhaust manifold 14, the exhaust pipe 15, the catalytic converter 16 and the turbine housing 8b of the supercharger 8 are The exhaust system member of the invention is configured.
  • the engine 6 is provided with an exhaust gas recirculation device 17.
  • the exhaust gas recirculation device 17 includes an EGR inlet pipe 18 and an EGR outlet pipe 21, an EGR valve 19, and an EGR cooler 20 as EGR pipes, respectively.
  • the upstream end 18 a of the EGR inlet pipe 18 is connected to the exhaust manifold 14.
  • a downstream end 18 b of the EGR inlet pipe 18 is connected to the EGR valve 19.
  • the EGR valve 19 constitutes an adjustment valve that adjusts the flow rate of the exhaust gas.
  • upstream and downstream represent directions in which exhaust gas flows.
  • an EGR cooler 20 is connected to the EGR valve 19.
  • the EGR cooler 20 is provided at the EGR cooler body 20A, the front end portion of the EGR cooler body 20A, connected to the EGR valve 19, and provided at the rear end portion of the EGR cooler body 20A.
  • an exhaust gas outlet pipe section 20 ⁇ / b> C connected to the outlet pipe 21.
  • Exhaust gas is introduced from the EGR valve 19 into the exhaust gas inlet pipe 20B. This exhaust gas is introduced into the EGR cooler body 20A.
  • the exhaust gas outlet pipe portion 20C discharges exhaust gas from the EGR cooler body 20A to the EGR outlet pipe 21.
  • the EGR cooler main body 20A includes an inner pipe (not shown) through which exhaust gas flows.
  • the EGR cooler main body 20A includes an outer pipe 20a that surrounds the inner pipe and forms a cooling water passage through which the cooling water flows.
  • the outer pipe 20a is provided with an introduction pipe 22A for introducing cooling water into the cooling water passage and a discharge pipe 22B for discharging cooling water from the cooling water passage. Cooling water cooled by a radiator (not shown) is introduced into the cooling water passage through the introduction pipe 22A. For this reason, the exhaust gas flowing through the inlet pipe of the EGR cooler body 20A is cooled by the cooling water.
  • the upstream end 21 a of the EGR outlet pipe 21 is connected to the EGR cooler 20, and the downstream end 21 b of the EGR outlet pipe 21 is connected to the intake manifold 13.
  • the EGR inlet pipe 18 and the EGR outlet pipe 21 constitute the EGR pipe of the present invention.
  • the exhaust gas recirculation device 17 having the above configuration transfers a part of the exhaust gas discharged to the exhaust manifold 14 from the EGR inlet pipe 18 to the intake manifold 13 via the EGR valve 19, EGR cooler 20 and EGR outlet pipe 21. Introduce.
  • the EGR valve 19 and the EGR cooler 20 of the exhaust gas recirculation device 17 of the present invention constitute an auxiliary set for exhaust gas recirculation that recirculates part of the exhaust gas from the exhaust system member to the intake system member through the EGR pipe. To do.
  • the EGR valve 19 includes an EGR valve main body 23 and a drive actuator 24.
  • the EGR valve body 23 is exhausted to an exhaust gas inlet 25a into which exhaust gas from the EGR inlet pipe 18 (see FIGS. 5 to 8) is introduced and to the EGR cooler 20 (see FIG. 5).
  • a lower casing 25 is provided in which an exhaust gas outlet 25b for discharging gas is formed.
  • a valve shaft 26 is slidably provided inside the lower casing 25.
  • a valve body 27 is attached to the tip of the valve shaft 26.
  • the valve body 27 opens and closes the exhaust gas inlet 25a.
  • the flow rate of the exhaust gas flowing from the EGR inlet pipe 18 to the EGR cooler 20 is adjusted by adjusting the opening degree of the exhaust gas inlet 25a by the valve body 27.
  • the drive actuator 24 includes an upper casing 28 attached to the lower casing 25.
  • a diaphragm 29 and a coil spring 30 are accommodated in the upper casing 28.
  • the diaphragm 29 divides the upper casing 28 into a negative pressure chamber 31 and an atmospheric chamber 32.
  • the coil spring 30 urges the diaphragm 29 downward.
  • An upper end of the valve shaft 26 is attached to the diaphragm 29.
  • a negative pressure pipe 33 is attached as shown in FIG.
  • the negative pressure chamber 31 is introduced with the negative suction pressure of the intake system member through the negative pressure pipe 33.
  • the diaphragm 29 opens the exhaust gas inlet 25 a against the urging force of the coil spring 30 due to the negative pressure generated in the negative pressure chamber 31. Thereby, the exhaust gas inlet 25a and the exhaust gas outlet 25b communicate with each other.
  • the upper casing 28 has air holes 28a.
  • a plurality of the air holes 28a are formed along the circumferential direction of the upper casing 28 as shown in FIG.
  • the EGR valve 19 and the EGR cooler 20 are installed side by side along the front-rear direction of the vehicle 1.
  • the outer pipe 20a of the EGR cooler main body 20A is provided with a pair of brackets 20b that protrude toward one end in the vehicle width direction of the engine 6.
  • the bracket 20b is attached to one end portion 6a of the engine 6 in the vehicle width direction.
  • the EGR valve 19 may be attached to the engine 6, and both the EGR cooler 20 and the EGR valve 19 may be attached to the engine 6.
  • the air cleaner 10 is disposed above the transmission 7.
  • the air cleaner 10 is attached to the EGR valve 19 and the EGR cooler 20 via brackets 35 and 36 as bracket sets above the transmission 7.
  • the EGR valve main body 23 and the drive actuator 24 of the EGR valve 19 are installed between the transmission 7 and the air cleaner 10 in the vertical direction of the vehicle 1.
  • the bracket 35 constitutes the first bracket of the present invention
  • the bracket 36 constitutes the second bracket of the present invention.
  • a pair of boss portions 23 a are formed at the front end portion of the outer pipe 20 a of the EGR valve main body 23.
  • the boss portion 23 a protrudes forward from the EGR valve main body 23.
  • a front mounting portion 10 ⁇ / b> A is formed at the front end portion of the air cleaner 10.
  • the boss portion 23a is connected to the front mounting portion 10A via the bracket 35.
  • the flange part 20c is provided in the exhaust-gas outlet pipe part 20C attached to the downstream end of the EGR cooler 20.
  • a rear attachment portion 10 ⁇ / b> B is formed at the rear end portion of the air cleaner 10.
  • the flange portion 20c is attached to the rear attachment portion 10B via the bracket 36.
  • the air cleaner 10 of this embodiment is attached to the EGR valve 19 and the EGR cooler 20 via the brackets 35 and 36.
  • the boss portion 23a of the EGR valve 19 of the present embodiment constitutes a first front fastening portion of the present invention
  • the front mounting portion 10A of the air cleaner 10 constitutes a second front fastening portion of the present invention.
  • the flange part 20c of the EGR cooler 20 of this embodiment comprises the 1st back side fastening part of this invention
  • the back side attachment part 10B of the air cleaner 10 has the 2nd back side fastening part of this invention.
  • the EGR valve 19 is installed closer to the lower portion 10 a of the air cleaner 10 than the transmission 7 in the vertical direction of the vehicle 1.
  • the axis A of the exhaust gas inlet pipe portion 20B is inclined outward in the vehicle width direction with respect to the axis B of the EGR cooler main body 20A. Further, in the EGR valve 19, the axis C of the EGR valve 19 extends toward the lower part 10a of the air cleaner 10 so as to be orthogonal to the axis A of the exhaust gas inlet pipe portion 20B.
  • the drive actuator 24 is installed on the opposite side of the engine 6 with respect to the EGR valve main body 23.
  • the EGR valve 19 is inclined upward from the EGR valve main body 23 toward the drive actuator 24 in a state where the EGR valve 19 attached to the engine 6 is viewed from the horizontal direction. That is, the EGR valve 19 is inclined upward by an angle ⁇ from the EGR valve body 23 toward the drive actuator 24 with respect to the horizontal axis D.
  • the front mounting portion 10A of the air cleaner 10 protrudes downward from the lower portion 10a of the air cleaner 10.
  • the drive actuator 24 and the front mounting portion 10 ⁇ / b> A are installed so as to overlap in the front-rear direction of the vehicle 1. Thereby, the front of the drive actuator 24 is covered with the front mounting portion 10A.
  • the diaphragm EGR valve 19 includes a drive actuator 24 in which an air hole 28a is formed, as shown in FIGS.
  • a liquid that has entered the engine room 4 for example, water, enters the upper casing 28 of the drive actuator 24 through the air hole 28 a and adheres to the diaphragm 29 to deteriorate or corrode the diaphragm 29. There is a risk of reaching.
  • the upper casing 28 may travel along the lower casing 25 and adhere to the valve body 27, which may lead to deterioration or corrosion of the valve body 27. As a result, the reliability of the EGR valve 19 may be reduced.
  • the EGR valve 19 and the EGR cooler 20 as an auxiliary machine set are installed side by side in the front-rear direction of the vehicle 1 and the EGR cooler 20 is installed in the vehicle of the engine 6.
  • the air cleaner 10 is attached to the EGR valve 19 and the EGR cooler 20 via brackets 35 and 36 as a bracket set above the transmission 7, and the EGR valve 19 is installed in the vertical direction of the vehicle 1. It was installed between the transmission 7 and the air cleaner 10.
  • auxiliary machine mounting structure for an internal combustion engine for a vehicle it is possible to prevent water from splashing on the EGR valve 19 from above and below, and to prevent water from entering the EGR valve 19. . Therefore, in the auxiliary machine mounting structure for an internal combustion engine for a vehicle according to the present embodiment, deterioration and corrosion of the valve body 27 of the EGR valve 19 can be prevented, and the reliability of the EGR valve 19 can be prevented from being lowered.
  • the air cleaner 10 is mounted on the EGR valve 19 and the EGR cooler 20 via the brackets 35 and 36 above the transmission 7. For this reason, it is possible to prevent the brackets 35 and 36 from extending from the engine 6 to the air cleaner 10 and to shorten the dimensions of the brackets 35 and 36. Therefore, it is possible to prevent the brackets 35 and 36 from vibrating due to the vibration of the engine 6.
  • the EGR valve 19 and the EGR cooler 20 are installed side by side in the front-rear direction of the vehicle 1, and the air cleaner 10 is attached to the EGR valve 19 and the EGR cooler 20 via brackets 35 and 36. For this reason, it is not necessary to provide an EGR pipe between the EGR valve 19 and the EGR cooler 20, and the rigidity of the EGR valve 19 and the EGR cooler 20 can be made relatively high. Furthermore, the air cleaner 10 can be supported in a wide range by the EGR valve 19 and the EGR cooler 20 that are relatively rigid and require a relatively large space.
  • the auxiliary machine mounting structure for an internal combustion engine for a vehicle according to this embodiment, it is possible to prevent the air cleaner 10 from vibrating due to the vibration of the engine 6 and to prevent the durability of the air cleaner 10 from deteriorating.
  • the boss portion 23a of the EGR valve 19 and the air cleaner front mounting portion 10A are connected via the bracket 35, and the flange portion 20c of the EGR cooler 20 and the rear of the air cleaner 10 are connected.
  • the side attachment portion 10B is connected via the bracket 36.
  • the EGR valve 19 and the EGR cooler 20 can be installed between the front end and the rear end of the air cleaner 10 when the air cleaner 10 is viewed from above.
  • a sufficient distance between the front end and the rear end of the air cleaner 10 is secured, and the air cleaner 10 has a wider range by the EGR valve 19 and the EGR cooler 20. Can be supported. Therefore, it is possible to more effectively prevent the air cleaner 10 from vibrating.
  • the EGR valve 19 is installed closer to the lower portion 10a of the air cleaner 10 than the transmission 7 in the vertical direction of the vehicle 1, and the axis A of the exhaust gas inlet pipe portion 20B is set to EGR. Inclined outward in the vehicle width direction with respect to the axis B of the cooler body 20A.
  • the EGR valve 19 extends to the lower portion 10a of the air cleaner 10 so that the axis C of the EGR valve 19 is orthogonal to the axis A of the exhaust gas inlet pipe portion 20B, and the drive actuator 24 is connected to the EGR valve main body 23. Installed on the opposite side of the engine 6.
  • the EGR valve 19 can be reliably installed near the lower portion 10 a of the air cleaner 10, and the drive actuator 24 can be reliably covered with the air cleaner 10. Therefore, when the air hole 28a communicating with the atmosphere is formed in the drive actuator 24 like the diaphragm type EGR valve 19, water can be prevented from entering the drive actuator 24 from the air hole 28a.
  • auxiliary machine mounting structure for an internal combustion engine for a vehicle according to the present embodiment, water can be prevented from entering the valve body 27 through the drive actuator 24, and deterioration and corrosion of the valve body 27 can be prevented.
  • the boss portion 23a of the EGR valve 19 can be brought close to the front mounting portion 10A of the air cleaner 10, and the dimension of the bracket 35 can be shortened.
  • the EGR valve main body 23 has a boss portion 23 a that protrudes forward from the EGR valve main body 23, and the EGR cooler 20 is connected to the upstream end of the EGR outlet pipe 21. It has a flange portion 20c.
  • the rigid boss portion 23a and the flange portion 20c can be attached to the air cleaner 10 via the brackets 35 and 36, and the air cleaner 10 Can be stably attached to the EGR valve 19 and the EGR cooler 20. Therefore, according to the auxiliary machine mounting structure for an internal combustion engine for a vehicle according to the present embodiment, the air cleaner 10 can be more effectively prevented from vibrating due to the vibration of the engine 6, and the durability of the air cleaner 10 can be further deteriorated. It can be effectively prevented.
  • the EGR valve 19 is inclined upward from the EGR valve body 23 toward the drive actuator 24 in a state where the EGR valve 19 mounted on the engine 6 is viewed from the horizontal direction. It was.
  • the drive actuator 24 can be brought close to the lower portion 10a of the air cleaner 10, and the water W dripped from above the engine room 4 can be removed. Can be blocked. Therefore, according to the auxiliary machine mounting structure for an internal combustion engine for a vehicle according to the present embodiment, water can be more effectively prevented from entering the drive actuator 24 through the air hole 28a.
  • the front mounting portion 10A of the air cleaner 10 protrudes downward from the lower portion 10a of the air cleaner 10 so that the drive actuator 24 and the front mounting portion 10A overlap in the front-rear direction of the vehicle 1. It was installed, and the front side of the drive actuator 24 was covered with the front mounting portion 10A.
  • auxiliary machine mounting structure for an internal combustion engine for a vehicle according to the present embodiment, water that enters from the front during traveling of the vehicle 1 can be blocked by the front mounting portion 10A. Therefore, water can be prevented from entering the drive actuator 24 through the air hole 28a.
  • EGR valve 19 of this embodiment is comprised from a diaphragm-type EGR valve, it is not limited to this.
  • the EGR valve main body 23 and the drive actuator 24 are installed below the air cleaner 10, but only the drive actuator 24 having the air holes 28 a may be installed below the air cleaner 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
PCT/JP2015/060475 2014-04-04 2015-04-02 車両用内燃機関の補機取付け構造 WO2015152375A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112015001648.1T DE112015001648B4 (de) 2014-04-04 2015-04-02 Befestigungsstruktur für eine Hilfseinrichtung in einem Verbrennungsmotor
CN201580004053.3A CN106133301B (zh) 2014-04-04 2015-04-02 车辆用内燃机的辅机装配结构

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014077675A JP6331603B2 (ja) 2014-04-04 2014-04-04 過給機付き内燃機関の吸気装置
JP2014-077675 2014-04-04
JP2014-078509 2014-04-07
JP2014078509A JP6281386B2 (ja) 2014-04-07 2014-04-07 車両用内燃機関の補機取付け構造

Publications (1)

Publication Number Publication Date
WO2015152375A1 true WO2015152375A1 (ja) 2015-10-08

Family

ID=54240683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/060475 WO2015152375A1 (ja) 2014-04-04 2015-04-02 車両用内燃機関の補機取付け構造

Country Status (3)

Country Link
CN (1) CN106133301B (de)
DE (1) DE112015001648B4 (de)
WO (1) WO2015152375A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6958095B2 (ja) * 2017-08-10 2021-11-02 スズキ株式会社 内燃機関の補機取付構造
JP6583368B2 (ja) 2017-08-24 2019-10-02 マツダ株式会社 車両用パワートレインユニット
CN109653906B (zh) * 2019-01-28 2020-08-11 东风汽车集团有限公司 汽油增压发动机废气再循环系统装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006090167A (ja) * 2004-09-22 2006-04-06 Honda Motor Co Ltd エンジンの排気還流装置
JP2012026434A (ja) * 2010-06-25 2012-02-09 Mazda Motor Corp エンジンの排気還流装置
JP2013189980A (ja) * 2013-05-13 2013-09-26 Yanmar Co Ltd エンジン装置
JP2013194529A (ja) * 2012-03-16 2013-09-30 Suzuki Motor Corp 車両用エンジンの吸気装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194529A (ja) 1987-10-05 1989-04-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPH0213A (ja) 1987-10-13 1990-01-05 Hitachi Chem Co Ltd 液晶表示素子の透明電極保護被膜形成用組成物
JP2572402B2 (ja) 1987-10-23 1997-01-16 日本電信電話株式会社 光ファイバ回線のアクセス方法及びそのコネクタプラグ
JP2644464B2 (ja) 1996-01-24 1997-08-25 株式会社東芝 炊飯器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006090167A (ja) * 2004-09-22 2006-04-06 Honda Motor Co Ltd エンジンの排気還流装置
JP2012026434A (ja) * 2010-06-25 2012-02-09 Mazda Motor Corp エンジンの排気還流装置
JP2013194529A (ja) * 2012-03-16 2013-09-30 Suzuki Motor Corp 車両用エンジンの吸気装置
JP2013189980A (ja) * 2013-05-13 2013-09-26 Yanmar Co Ltd エンジン装置

Also Published As

Publication number Publication date
CN106133301A (zh) 2016-11-16
DE112015001648B4 (de) 2021-12-23
CN106133301B (zh) 2018-10-26
DE112015001648T5 (de) 2017-01-12

Similar Documents

Publication Publication Date Title
US9010304B2 (en) Exhaust gas recirculation device of engine
WO2014069038A1 (ja) ダンプトラック
JP6701609B2 (ja) 車両の吸排気装置
JP6281386B2 (ja) 車両用内燃機関の補機取付け構造
US20160186704A1 (en) Exhaust gas recirculation system for engine
WO2015152375A1 (ja) 車両用内燃機関の補機取付け構造
WO2015152403A1 (ja) エンジンの吸気装置
WO2017022217A1 (ja) 作業車両
JP2007177712A (ja) 過給機付エンジンのインタークーラ配設構造
JP4235946B2 (ja) エンジンの吸気構造
CA2826842C (en) Apparatus and system for directing exhaust gas flow
JP6439526B2 (ja) 車両用内燃機関の排気ガス還流装置
EP3517769B1 (de) Motoreinlass- und -auslasssystem und verbrennungsmotor
JP5438249B1 (ja) ダンプトラック
CN109424423B (zh) 车辆用中间冷却器的配管结构
JP5754914B2 (ja) 内燃機関
JP7102747B2 (ja) エンジンの排気浄化装置
JP4784610B2 (ja) 車両
JP2009150243A (ja) ターボ過給機付きエンジン
JP2012219696A (ja) 車両用エンジンの吸気装置
JP6416052B2 (ja) 作業車両
JP7120031B2 (ja) エンジンの排気装置
JPH0571427A (ja) Ｅｇｒ装置
JP5533606B2 (ja) 車両用エンジンの吸気装置
JP2004257329A (ja) 内燃機関の排気還流装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15773309

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 112015001648

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15773309

Country of ref document: EP

Kind code of ref document: A1