CN103670678B - A kind of suction pressure control gear of charging turbine - Google Patents
A kind of suction pressure control gear of charging turbine Download PDFInfo
- Publication number
- CN103670678B CN103670678B CN201310658227.0A CN201310658227A CN103670678B CN 103670678 B CN103670678 B CN 103670678B CN 201310658227 A CN201310658227 A CN 201310658227A CN 103670678 B CN103670678 B CN 103670678B
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- CN
- China
- Prior art keywords
- expansion box
- air pipe
- driving body
- outlet pipe
- turbine
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- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Control Of Turbines (AREA)
Abstract
The present invention relates to a kind of suction pressure control gear of charging turbine, the pushing device comprising outlet pipe, expansion box, lid, turbine, steam outlet pipe and be arranged on expansion box, described lid is connected with expansion box, and described expansion box is connected by steam outlet pipe with turbine; Described pushing device comprise be positioned at expansion box baffle plate, air pipe, at least one pair of push rod, pressure transducer, driving body and the controller that arrange on described baffle plate, described outlet pipe is connected with described air pipe; Described lid is provided with cavity, described driving body and controller are arranged in described cavity, described lid is provided with connecting sleeve, described push rod to be embedded in described connecting sleeve and to be connected with described driving body, and the described pressure transducer being positioned at described air pipe side is electrically connected with described driving body and controller.The pressure provided in a kind of adjustable expansion box is provided, thus to the control gear that the suction pressure of turbine controls to make the suction pressure of turbine stable.
Description
Technical field
The invention belongs to engine art, relate to a kind of control gear of turbine inflow pressure when carrying out constant pressure supercharging for motor.
Background technique
Along with the development of society and the raising of environmental requirement, the application of present engine booster technology is more and more extensive, in powerful motor mostly adopt turbocharging technology, to improve power and to reduce fuel consumption rate.The pressurization system of turbosupercharged engine is divided into constant pressure charging system and impulse pressure charging system substantially, the structural feature of constant pressure charging system is exactly that exhaust pipe volume is larger, outlet pipe plays pressure stabilization function, exhaust pressure fluctuation is little, ensure the stability of flow of turbine, thus make turbine have higher efficiency.
In the constant pressure charging system of prior art, be all generally that outlet pipe is directly connected with expansion box, be directly communicated in expansion box by outlet pipe by motor pressure out, when carrying out constant pressure exhaust turbosupercharging to motor, because internal combustion engine mode is iterative motion, exhaust enters expansion box with pulse shape, pressure changes with pulse shape, and motor runs usually under variable working condition, air displacement is with working conditions change, pressure transient, therefore need to control the suction pressure of turbine, keep constant pressure, otherwise easily damage is caused to turbine blade, the compression work that simultaneously also turbine can be caused to export is fluctuation status, accurately cannot control the density of the induced air of motor, and then affect the accuracy of Engine Injection Mass, this will make a big impact to the thermal efficiency of motor.Institute thinks and solves the problems of the technologies described above, the mode that prior art adopts is strengthened by expansion box, like this when exhaust enters expansion box with pulse shape, Large Copacity due to expansion box alleviates the pressure of this pulse shape, make expansion box middle outlet pressure relative constancy, thus the pressure entering into turbine is relatively stable, to solve the above problems.But by strengthening the mode of expansion box volume, also there is following defect: (1) jumbo expansion box can not complete incidence graph pulse shape pressure change, cause outlet pressure or unstable, still there is change in the pressure entering into turbine, thus or damage can be caused to turbine blade; (2) pressure of expansion box inner chamber is unadjustable, cannot the suction pressure of balanced engine and the outlet pressure of expansion box, can not according to the needs of outlet pressure, carry out the adjustment of expansion box pressure, and then affect the accuracy of Engine Injection Mass, to make a big impact to the thermal efficiency of motor, thus turbine is unstable along with exhaust pulses causes compression work to export, damage is caused to turbine blade, therefore in the constant pressure charging system of motor, a kind of suction pressure control gear of turbine is necessary.
Summary of the invention
The present invention is directed to the deficiency of turbine inflow pressure transient in prior art, the pressure in a kind of adjustable expansion box is provided, thus to the control gear that the suction pressure of turbine controls to make the suction pressure of turbine stable.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of suction pressure control gear of charging turbine, comprise outlet pipe, expansion box, be arranged on the lid on expansion box, turbine and steam outlet pipe, described lid is connected with expansion box, described expansion box is connected by described steam outlet pipe with turbine, also comprise the pushing device be arranged on expansion box, described pushing device comprises the baffle plate being positioned at expansion box, be arranged on the air pipe in the middle part of baffle plate, at least one pair of push rod that described baffle plate is arranged, be arranged on the pressure transducer on baffle plate, the driving body driving described pushing device to move and controller, at least one pair of described push rod becomes to be symmetrical arranged about described air pipe, described pressure transducer becomes to be symmetrical arranged about described air pipe, described outlet pipe is connected with described air pipe, the described pressure transducer being positioned at described air pipe side is electrically connected with described driving body and controller.
Described lid is provided with cavity, and described driving body and controller are arranged in described cavity, and it is the connecting sleeve of sliding connection that described lid is provided with described push rod, and described push rod to be embedded in described connecting sleeve and to be connected with described driving body.
Described lid is provided with the through hole passed for described air pipe, and described air pipe extends through described through hole end, and described outlet pipe to be nested in described air pipe and to form sliding connection with described air pipe.
Further, the end that described outlet pipe is connected with described air pipe is provided with seal ring one, and the end of described outlet pipe end is provided with seal ring two.
Further, described push rod is two right.
Further, described driving body is identical with the number of described push rod, and described driving body is four.
Further, described driving body is air pump.
Beneficial effect of the present invention: (1) is provided with one in order to control the pushing device of gas pressure in expansion box by between the outlet pipe of motor and expansion box, when the pressure of being discharged by motor enters into expansion box with pulse shape change, the pressure in expansion box is regulated by pushing device, namely by the motion control expansion box Volume Changes of baffle plate, thus ensure intracavity gas constant pressure, make the stable gas pressure entering into turbine, protect turbine blade not to be damaged, also ensure that the compression work that turbine exports is steady state, thus accurately control the density of the induced air of motor, ensure the accuracy of Engine Injection Mass, substantially increase the thermal efficiency of motor, and compared with fixing chamber, this variable-volume formula expansion box substantially reduces volume, machine volume is reduced.
(2) internal-combustion engine usually runs under variable working condition, air displacement also changes along with working conditions change, and turbine output squeezing merit will match with air-intake of combustion engine state, the present invention is controlled turbine inflow pressure by programmable controller, turbine operating mode is adjusted with air-suction state requirement, optimize internal-combustion engine real work circulation, improve the thermal efficiency of internal-combustion engine.
(3) end be connected with described air pipe at described outlet pipe is provided with seal ring one, and the end of described outlet pipe end is provided with seal ring two, adds sealing, prevents the space between waste pipe and air pipe from causing gas leakage.
Accompanying drawing explanation
By reference to the accompanying drawings, the other features and advantages of the invention can become clearer from below by the explanation of illustrating to the preferred implementation that principle of the present invention makes an explanation.
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the suction pressure control gear embodiment of a kind of charging turbine of the present invention;
Fig. 2 is the structural representation of pushing device of the present invention;
Fig. 3 is the partial enlarged drawing of outlet pipe and air pipe joint in Fig. 1 embodiment.
Embodiment
As Figure 1-3, as embodiments of the invention, a kind of suction pressure control gear of charging turbine, the pushing device comprising outlet pipe 1, expansion box 2, the lid 3 be arranged on expansion box 2, turbine 4, steam outlet pipe 5 and be arranged on expansion box 2, described lid 3 to cover on described expansion box 2 and is fixedly linked with expansion box 2, described expansion box 2 is connected by described steam outlet pipe 5 with turbine 4, is sent in turbine 4 by the air pressure in described expansion box 2 by steam outlet pipe 5.
In the present embodiment, described pushing device comprises the baffle plate 6 being positioned at expansion box 2, be arranged on the air pipe 7 in the middle part of baffle plate 6, two pairs of push rods 8 that described baffle plate 6 is arranged, be arranged on the pressure transducer 9 on baffle plate 6, the driving body 10 driving described pushing device to move and controller 11, air pipe 7 is communicated with expansion box 2, two pairs of described push rods 8 are symmetrical arranged about described air pipe 7 one-tenth, namely push rod 8 is separately positioned on air pipe 7 both sides, described pressure transducer 9 is symmetrical arranged about described air pipe 7 one-tenth, described lid 3 is provided with the through hole passed for described air pipe 7, described air pipe 7 is communicated with in expansion box 2 through described through hole head end, end extends, namely the end of air pipe 7 is connected with described outlet pipe 1, described outlet pipe 1 to be nested in described air pipe 7 and to form sliding connection with described air pipe 7, for making compact structure, therefore being provided with cavity 12 in the inside of described lid 3, described driving body 10 and controller 11 being placed in described cavity 12, described lid 3 is provided with and the connecting sleeve 13 of described push rod 8 in sliding connection, and described push rod 8 to be embedded in described connecting sleeve 13 and to be connected with described driving body 10.
Pressure transducer 9 is fixed on baffle plate 6, for detecting the pressure of gas in expansion box 2, and then can know the pressure being entered into turbine 4 by steam outlet pipe 5, needed for turbine 4 pairs of pressure, regulates the pressure in expansion box 2.
The described pressure transducer 9 being positioned at described air pipe 7 side is electrically connected with described driving body 10 and controller 11, and namely in the present embodiment, it is two right that pressure transducer 9 and described driving body 10 and controller 11 electrically connect as, and lays respectively at the both sides of air pipe 7; Controller 11 is fixed in the cavity 12 of expansion box 2, the signal lighting outlet of pressure transducer 9 is connected with wire with programmable controller 11, driving body 10 is connected with wire with programmable controller 11, gas pressure in the expansion box 2 that driving body 10 can automatically be recorded according to pressure transducer 9 is made a response, and realizes self feed back.And, if turbine 4 output work needs to change, by changing the detected parameters of programmable controller 11, thus change gas pressure in expansion box 2.
For improving sealing, the end outer wall that described outlet pipe 1 is connected with described air pipe 7 is provided with seal ring 1, and the inner wall of end of described outlet pipe 1 end is provided with seal ring 2 15.
In the present embodiment, each push rod 8 correspondence is driven by a driving body 10, so described driving body 10 is identical with the number of described push rod 8, namely described driving body 10 is four, in the present embodiment, preferred described driving body 10 is air pump, and certain described driving body 10 also can be drive motor, or other drive unit.
The working principle of the present embodiment: engine exhaust enters in air pipe 7 by outlet pipe 1, then expansion box 2 is entered, because motor is iterative motion, exhaust enters in expansion box 2 with pulse shape, the suction pressure that therefore will realize entering into turbine 4 is stablized, gas pressure in expansion box 2 need be controlled, at this moment, detect expansion box 2 internal pressure by pressure transducer 9 to change, signal is passed to programmable controller 11, programmable controller 11 sends instruction rapidly, driving body 10 is made to make action rapidly, promote the motion of baffle plate 6, thus change the volume of expansion box 2, make the value that air pressure reaches required, the suction pressure entering into turbine 4 is stablized.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (7)
1. the suction pressure control gear of a charging turbine, comprise outlet pipe (1), expansion box (2), be arranged on the lid (3) on expansion box (2), turbine (4) and steam outlet pipe (5), described lid (3) is connected with expansion box (2), described expansion box (2) is connected by described steam outlet pipe (5) with turbine (4), it is characterized in that: also comprise the pushing device be arranged on expansion box (2), described pushing device comprises the baffle plate (6) being positioned at expansion box (2), be arranged on the air pipe (7) at baffle plate (6) middle part, at upper at least one pair of push rod (8) arranged of described baffle plate (6), be arranged on the pressure transducer (9) on baffle plate (6), the driving body (10) driving described pushing device to move and controller (11), described at least one pair of push rod (8) becomes to be symmetrical arranged about described air pipe (7), described pressure transducer (9) becomes to be symmetrical arranged about described air pipe (7), described outlet pipe (1) is connected with described air pipe (7), the described pressure transducer (9) being positioned at described air pipe (7) side is electrically connected with described driving body (10) and controller (11).
2. the suction pressure control gear of charging turbine according to claim 1, it is characterized in that: described lid (3) is provided with cavity (12), described driving body (10) and controller (11) are arranged in described cavity (12), described lid (3) is provided with and described push rod (8) connecting sleeve in sliding connection (13), and described push rod (8) to be embedded in described connecting sleeve (13) and to be connected with described driving body (10).
3. the suction pressure control gear of the charging turbine according to any one of claim 1-2, it is characterized in that: described lid (3) is provided with the through hole passed for described air pipe (7), described air pipe (7) extends through described through hole end, and described outlet pipe (1) to be nested in described air pipe (7) and to form sliding connection with described air pipe (7).
4. the suction pressure control gear of charging turbine according to claim 3, it is characterized in that: the end that described outlet pipe (1) is connected with described air pipe (7) is provided with seal ring one (14), the end of described outlet pipe (1) end is provided with seal ring two (15).
5. the suction pressure control gear of charging turbine according to claim 4, is characterized in that: described push rod (8) is two right.
6. the suction pressure control gear of charging turbine according to claim 5, is characterized in that: described driving body (10) is identical with the number of described push rod (8), and described driving body (10) is four.
7. the suction pressure control gear of charging turbine according to claim 6, is characterized in that: described driving body (10) is air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658227.0A CN103670678B (en) | 2013-12-09 | 2013-12-09 | A kind of suction pressure control gear of charging turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658227.0A CN103670678B (en) | 2013-12-09 | 2013-12-09 | A kind of suction pressure control gear of charging turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103670678A CN103670678A (en) | 2014-03-26 |
| CN103670678B true CN103670678B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310658227.0A Expired - Fee Related CN103670678B (en) | 2013-12-09 | 2013-12-09 | A kind of suction pressure control gear of charging turbine |
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| Country | Link |
|---|---|
| CN (1) | CN103670678B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645771A (en) * | 2021-05-24 | 2022-06-21 | 长城汽车股份有限公司 | Engine air intake control method and device, storage medium and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767424A (en) * | 2012-07-16 | 2012-11-07 | 上海交通大学 | Communication device for circulating air course |
| CN102808688A (en) * | 2012-08-28 | 2012-12-05 | 上海交通大学 | Switchable turbocharging system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5316763B2 (en) * | 2008-11-04 | 2013-10-16 | 株式会社Ｉｈｉ | Gas shunting device for turbocharger |
| JP2010151108A (en) * | 2008-12-26 | 2010-07-08 | Toyota Motor Corp | Supercharger for internal combustion engine |
| JP5039730B2 (en) * | 2009-02-26 | 2012-10-03 | 三菱重工業株式会社 | Variable displacement exhaust turbocharger |
-
2013
- 2013-12-09 CN CN201310658227.0A patent/CN103670678B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767424A (en) * | 2012-07-16 | 2012-11-07 | 上海交通大学 | Communication device for circulating air course |
| CN102808688A (en) * | 2012-08-28 | 2012-12-05 | 上海交通大学 | Switchable turbocharging system |
Non-Patent Citations (1)
| Title |
|---|
| 浅谈废气涡轮增压发动机;姚树平;《农业装备技术》;20100831;第36卷(第4期);48-49 * |
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| CN103670678A (en) | 2014-03-26 |
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Granted publication date: 20160120 Termination date: 20191209 |