CN100516478C - Outlet/inlet piping structure for intercooler - Google Patents
Outlet/inlet piping structure for intercooler Download PDFInfo
- Publication number
- CN100516478C CN100516478C CNB2006101642769A CN200610164276A CN100516478C CN 100516478 C CN100516478 C CN 100516478C CN B2006101642769 A CNB2006101642769 A CN B2006101642769A CN 200610164276 A CN200610164276 A CN 200610164276A CN 100516478 C CN100516478 C CN 100516478C
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- Prior art keywords
- outlet
- inlet
- upper water
- water box
- interstage cooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
An outlet/inlet piping structure of an intercooler according to the invention has a construction in which an outlet/inlet piping 5 is branched in such a fashion as to possess a plurality of flow passages from one of the flow passages of a distal end position 5 a spaced apart from a header tank 4 of an intercooler to a connection portion 5 b to the header tank so that a fluid pressure loss does not substantially occur in the flow between the distal end position and the connection portion. In other words, a ratio of a sectional area of the flow passage of the connection portion to a sectional area of the connection portion of the far end portion is at least 78%.
Description
Technical field
The present invention relates to a kind of outlet/inlet piping structure that is used for interstage cooler, with so that high-pressure air in pressurized machine flows into interstage cooler, cooling high-pressure air and high-pressure air is sent to engine main body the supply system of internal-combustion engine (motor).
Background technique
In order to improve motor output, common convention is to use pressurized machine that a large amount of air are sent in the motor.Yet because air is compressed in pressurized machine, so air temperature can raise, and air is varied to the high-pressure air of the temperature with about 180 ℃ (for example).Interstage cooler (cooler) is used for increasing air density by the described high-pressure air of cooling before being fed into engine main body at high-pressure air.
As shown in Figure 7, interstage cooler generally includes by alternately piling up the heat exchanging core 3 that a large amount of flat tubes 1 and a large amount of corrugated fins 2 form, and upper water box (header tank) 4 is set at the both sides of this heat exchanging core 3.As shown in Figure 8, upper water box 4 is made of the container panel with U-shaped sectional shape 42 that makes a large amount of pipes 1 be connected to the central layer 41 on it and to be used to form vessel space.For example, inlet pipe 5 is connected to the roughly top of upper water box in the housing of inlet side upper water box 4, and outlet conduit 5 (not shown)s are connected in the housing of outlet side upper water box (not shown).
In having the interstage cooler of this structure, high-pressure air by the pressurized machine pressurization enters inlet side upper water box 4 via inlet pipe 5, then enters the outlet side upper water box and is discharged to motor via outlet conduit from this outlet side upper water box via a large amount of flat tubes 1.On the other hand, because the motion of automobile and cooling fan, outside air is orthogonal to the flow direction of high-pressure air outside pipe 1 and flows, thereby causes the air of heat exchange and cooling down high-temperature and high pressure.Mode according to this, interstage cooler adopts the high pressure draught of single pass system usually.
Therefore, in order to improve heat exchange efficiency, the high-pressure air from inlet pipe 5 is flowed in broader scope, and high-pressure air must be assigned to equably a large amount of flat tubes 1.In the interstage cooler of prior art, the far-end of inlet pipe 5 is configured as flat as shown in Figure 7 and is connected to upper water box 4.(incidentally, this fundamentally also the situation with outlet conduit is identical).Mode allows high-pressure air to flow through each pipe 1 equably according to this.
For processing environment pollutes, the waste gas regulation of diesel engine has become strict more in recent years.For example, under the situation of large truck, the nitrogen oxide numerical value of European waste gas 5 (g/kwh) from EURO3 become 3.5 among the EURO4 (g/kwh), and be expected for predetermined 2 (g/kwh) since EURO5 in 2008.PM (floating particulate matter) numerical value is reduced to 0.02 the EURO5 (g/kwh) from 0.1 (g/kwh) of EURO3.
For fear of to these predetermined restricted, the pressure of the high-pressure air that must discharge from existing pressurized machine is from 1.8 (kgf/cm
2) through 2.7 (kgf/cm
2) bring up to final objective value 3.6 (kgf/cm
2), and make the temperature of high-pressure air be elevated to 204 ℃ again to 239 ℃ from 180 ℃.
As mentioned above, because waste gas stipulates that for large truck, boost pressure and temperature all significantly increase in interstage cooler.
Yet, have in the outlet/inlet piping structure (especially inlet piping structure) of the prior art of flat pattern according to the far-end of outlet/inlet piping (part that contact with upper water box) wherein, by since make the waste gas regulation more strictness cause the increase of boost pressure and temperature may occur making intensity to become insufficient and outlet/inlet piping is out of shape.
In other words, the flat distal end of outlet/inlet piping may expand into circle.The problem that the distortion of the far-end of outlet/inlet piping may cause is, container panel 42 and central layer 41 are as tension that dotted line indicates among Fig. 8 and distortion, and final, big stress can act on by on the pipe root R of connections central layer such as hard solder and pipe and cause fracture.Interstage cooler according to prior art adopts wide tube shape, so that the air of supercharging flows in broad scope, but pressurized zone is very big and more may deform.
Summary of the invention
Consider the problems referred to above, the outlet/inlet piping structure that the purpose of this invention is to provide a kind of interstage cooler, described outlet/inlet piping structure can be fed to fluid each pipe of being connected to upper water box equably, have the fluid that is enough to resist highly pressurization and the intensity that suppresses to be out of shape and can reduce stress on the pipe root.
According to an aspect of the present invention, the invention provides a kind of outlet/inlet piping structure of interstage cooler, described outlet/inlet piping structure makes high-pressure air flow in the interstage cooler from pressurized machine, and described high-pressure air is sent to engine main body from described interstage cooler, described high-pressure air increases its air density because of cooling, wherein at least one pipeline in outlet conduit and the inlet pipe has is configured to make it to be divided into a plurality of flow channels from a flow channel to the attachment portion that arrives described upper water box with the separated remote location of upper water box of described interstage cooler, and can not occur the loss of hydrodynamic pressure between described remote location and described attachment portion, wherein said a plurality of flow channels are connected to described upper water box.
Therefore, can reduce pressurized zone and can not reduce the sectional area of flow channel, can increase export/intensity of inlet pipe and can suppress its distortion, and can prevent that the pipe root R of described interstage cooler from damaging and fracture.Fluid can be fed to each pipe that is connected to described upper water box equably.
In outlet/inlet piping structure according to the present invention, the ratio of the sectional area of the sectional area of the flow channel of attachment portion and the flow channel of remote location is at least 78%.The pressure loss of the air by supercharging is measured the long-pending ratio of outlet/entrance section of described outlet/inlet piping, but has ± 5% measurement error in the measurement of the pressure loss usually.Therefore, the present invention corresponding to as the upper limit ± 5% adopt and to be at least 78% the long-pending ratio of outlet/entrance section, wherein difference becomes clear at described upper limit place.This is equivalent to and makes the structure that can not occur the pressure loss in the described outlet/inlet piping basically.
In outlet/inlet piping structure according to the present invention, by make pipe axially on be divided into a plurality of unit half division member interosculate and fixing described member forms outlet/inlet piping.Therefore, produce easily and can reduce cost of production.
According to another aspect of the present invention, it provides a kind of interstage cooler, comprising: be arranged to two upper water boxs respect to one another at inlet side and outlet side; Be connected to the inlet pipe in pressurized machine side pipe road, with so that pass through from the high-pressure air of pressurized machine, and described inlet pipe is set in the described inlet side upper water box; Be connected to the heat exchanging core of described two upper water boxs, the high-pressure air that flows out from described inlet pipe in order to cooling also increases air density; And the outlet conduit that is connected to motor side pipe road, in order to described high-pressure air is sent to described engine main body, and described outlet conduit is set on the described outlet side upper water box; At least one pipeline in wherein said inlet pipe and the described outlet conduit separates in one way, with had from a flow channel of the separated remote location of described inlet side upper water box a plurality of flow channels to the attachment portion that arrives described inlet side upper water box, make the loss that can not occur hydrodynamic pressure between described remote location and described attachment portion, wherein said a plurality of flow channels are connected to described inlet side upper water box.
Therefore, may need a kind of interstage cooler that comprises the inlet pipe of pressure resistance with improvement.
As following elaboration, can understand the present invention more fully from the explanation to the preferred embodiments of the present invention in conjunction with the accompanying drawings.
Description of drawings
In diagram:
Figure 1A is the view that shows the first half structure of the interstage cooler that is equipped with outlet/inlet piping structure according to an embodiment of the invention;
Figure 1B is used to illustrate the explanatory drawing of outlet/inlet piping in the distortion of joint office;
Fig. 2 is the plotted curve that shows the relation between the boost pressure loss that exports (connection side)/inlet (distal portion side) sectional area ratio and interstage cooler;
Fig. 3 is the front elevation of the interstage cooler that is equipped with outlet/inlet piping structure according to another embodiment of the invention;
Fig. 4 is the explanatory drawing of difficulty of processing that is used for illustrating the outlet/inlet piping structure of the flow channel that has complete branch according to an embodiment of the invention;
Fig. 5 shows outlet/inlet piping structure among each embodiment (a) to (d) and the sectional view that is intercepted along the line V-V among Fig. 4;
Fig. 6 A and Fig. 6 B show the outlet/inlet piping structure according to two embodiments of the present invention;
Fig. 7 is the first half view according to the interstage cooler that is equipped with outlet/inlet piping structure of prior art;
Fig. 8 is the explanatory drawing of the distortion of upper water box before and after pressurization that is used to illustrate the outlet/inlet piping structure of prior art; And
Fig. 9 is the plotted curve that is used for illustrating the variation of the trend of waste gas specified value of EURO (Europe) and the pressure and temperature of high-pressure air after supercharging.
Embodiment
With hereinafter with reference to the outlet/inlet piping structure of description of drawings interstage cooler according to a preferred embodiment of the invention.
Figure 1A shows that Figure 1B is used to illustrate the explanatory drawing of outlet/inlet piping in the distortion of joint office according to the first half structure of the interstage cooler that is equipped with outlet/inlet piping structure of the embodiment of the invention.Although high-pressure air that will be by being used to cool off automatic pressure intensifier also illustrates the present invention with the interstage cooler that described air is sent to internal-combustion engine (motor), yet the present invention can suitably be applied to heat exchanger but not interstage cooler.
Figure 1A only shows the first half structure of interstage cooler, and this is because Lower Half has roughly the same structure.Therefore, from diagram, omit Lower Half.
As shown in Figure 1A, interstage cooler comprises by alternately piling up the upper water box 4 of heat exchanging core 3 that a large amount of flat tubes 1 and a large amount of corrugated fins 2 form and the both sides that are arranged on this heat exchanging core 3.Each upper water box 4 comprises the container panel 42 that a large amount of pipes 1 are connected to the central layer 41 on it and have the U-shaped sectional shape that limits vessel space.Incidentally, the side of upper water box 4 is sealed by side plate.Incidentally, the a large amount of flat tubes 1 that constitute heat exchanging core 3 are configured to make flat section vertically consistent with the flow direction of fluid (outside air) mobile pipe 1 outside of pipe 1 usually, but flat tube 1 is parallel to the direction aligning that crosses flow direction with the right angle in this embodiment.
Two upper water boxs 4 that are connected to the two ends of flat tube 1 are set on the Vertical direction of automobile.Inlet pipe 5A is connected to the upper end of inlet side upper water box 4A, and outlet conduit 5B (not shown) is connected to the upper end of outlet side upper water box 4B, not shown (being positioned at lower end in Figure 1A when indicating).Incidentally, two upper water boxs 4 all can be arranged on automobile transversely.In order to produce, inlet pipe 5A and outlet conduit 5B are of similar shape usually, and inlet pipe 5A and two pipelines of outlet conduit 5B generally represented in employed term " outlet/inlet piping structure " among the embodiment.Because high-pressure air is pressurized the device pressurization, so air density increases when air is cooled off by interstage cooler.Because it is very strict and can alleviate stringency in outlet conduit 5B side to the pressure and temperature condition of inlet pipe 5A, so the structure of described inlet and outlet conduit needn't be always identical, but must be at least to the outlet/inlet piping structure of inlet pipe 5A one side employing according to this embodiment.
The other end of inlet pipe 5A is connected to the pipeline of pressurized machine side, and in order to by coming the high-pressure air of automatic pressure intensifier, the other end of outlet conduit 5B is connected to the pipeline that starts pusher side, in order to high-pressure air is sent to engine main body.
In having the interstage cooler of above-mentioned structure, enter inlet side upper water box 4A, flow into outlet side upper water box 4B and be sent to engine main body via inlet pipe 5A via outlet conduit 5B from this pipe 1 via heat exchanging core 3 by pressurized machine air pressurized (air supply).On the other hand, the outside air that sucked of cooling fan (not shown) and the driving wind that absorbed when automobile running draw sheet metal (drawing sheet) and cross the flows outside of the mode of the high pressure draught in the pipe 1 at pipe 1 to pass to its rear side from the steel-sheet front side.As a result, high-pressure air and outside air heat-shift, and be about 180 ℃ high-pressure air at the inlet side of interstage cooler and be cooled to about 50 ℃ at outlet side, for example.Therefore, because high-pressure air is cooled, so the density of high-pressure air can increase, the pack effectiveness that supplies to the air of motor increases, and improves output quantity.
Next outlet/inlet piping structure as feature of the present invention will be described.Interstage cooler only must supply to the type of each pipe 1 equably for making high-pressure air by once (single process type) and high-pressure air between two upper water box 4A and 4B.Therefore, outlet/inlet piping 5 is configured as flat in the attachment portion that this place is connected to upper water box 4.Yet when pipeline 5 was configured as flat, as shown in Figure 7, pressurized zone can increase, and made pressure resistance descend, and the attachment portion suffers very large deformation, thereby can cause pipe root R to damage and fracture.
Therefore, this embodiment adopts the structure that outlet/inlet piping 5 is divided into a plurality of unit.In other words, outlet/inlet piping 5 only has a flow channel away from the distal portion 5a of upper water box 4, but outlet/inlet piping 5 is punished into a plurality of unit at the attachment portion 5b of the outlet/inlet piping 5 that is connected to upper water box 4, and mode is to have a plurality of flow channels 52 and 53 of mutual formation one according to this.In this case, the sectional shape of the flow channel of distal portion 5a is circular with connection pressurized machine pipeline, yet the sectional shape of the flow channel 52 of attachment portion 5b and 53 can be circle, but more preferably is oval.When the sectional shape of the flow channel 52 of attachment portion 5b and 53 is oval (flat), can improve the partition coefficient of high-pressure air to each pipe 1.As shown in Figure 1B, because outlet/inlet piping 5 punishes into a plurality of flow channels 52 and 53 at attachment portion 5b, so the pressurized zone of each flow channel 52,53 deformation extent littler, flow channel 52,53 that becomes reduces and can reduce the stress of pipe root.
Also must employing can not extend to the structure that produces the pressure loss of fluid the flow channel of attachment portion 5b at distal portion 5a from outlet/inlet piping 5.Therefore, sectional area is roughly the same or bigger in attachment portion 5b one side the abundant flow channel from distal portion 5a to attachment portion 5b.In this case, the ratio execution of the sectional area of the flow channel by measuring distal portion 5a and the sectional area of the flow channel of attachment portion 5b is to the measurement of the pressure loss.In this pressure loss is measured, exist usually to be about ± 5% measurement error.Fig. 2 is the plotted curve that shows the relation between the boost pressure loss that exports (connection side)/inlet (distal portion side) sectional area ratio and interstage cooler.According to this plotted curve, outlet/entrance section long-pending corresponding to as the upper limit ± 5% be preferably at least 78%, wherein error becomes clearly at described upper limit place.In other words, adopt the ratio of sectional area of the flow channel of the sectional area of the flow channel 52 in outlet/inlet piping 5, make attachment portion 5b and 53 and distal portion 5a to be at least 78% outlet/inlet piping structure.
Fig. 3 shows the outlet/inlet piping structure of interstage cooler according to another embodiment of the invention.Suppose the structure of inlet pipe 5A and the roughly the same previous embodiment that illustrated of structure of outlet conduit 5B, but described in this embodiment inlet pipe is different with described outlet conduit.In other words, because the spatial constraints in the engine compartment and the pipeline of inlet side may only be arranged is the outstanding pipe in end when being installed to interstage cooler on the automobile.In this case, inlet pipe 5A is connected to the side (being the right side of inlet side upper water box 4A in Fig. 3) of inlet side upper water box 4A, make the inlet side of high-pressure air be set at the side of direction that quadrature crosses the tube axis of flat tube 1, as shown in Figure 3.This inlet pipe 5A has the not pipeline of the single structure of branch.
On the other hand, the outlet conduit 5B that is connected to outlet side upper water box 4B with previous embodiment in identical mode have the splitted construction of a plurality of pipes and be connected to the top of outlet side upper water box 4B.Mode according to this, only have among the inlet pipe 5A of outlet/inlet piping structure and the outlet conduit 5B one can branch.Incidentally, the structure of other member (for example pipe 1, radiating fin 2 and heat exchanging core 3) is identical with the structure in the previous embodiment, and will omit the explanation to it.
In the foregoing embodiments, as shown in Figure 4, outlet/inlet piping 5 has the structure (also with reference to Fig. 5 A) of complete branch.In this case, still the problem of Cun Zaiing is that the inside 51 (being represented by heavy line in Fig. 4) of lateral must be bonding by welding or hard solder, and excessively implements to draw operation at shaping because of the decline of processing coefficient causes by the compacting meeting.
Therefore, can adopt the structure that makes outlet/inlet piping 5 incomplete branches.
Fig. 5 is the sectional view that is intercepted along the line V-V among Fig. 4, and shows the embodiment of the structure of the structure embodiment of structure of complete branch and incomplete branch.Fig. 5 (a) shows the cross section of the outlet/inlet piping 5 of flow channel 52 with complete branch and 53.Fig. 5 (b) show flow channel 52 with branch with 53 with the cross section of the outlet/inlet piping 5 of the structure of flow channel 54 that is connected flow channel 52 and 53 and incomplete branch.Flow channel 54 is configured as flat, and can limit diverted flow passage 52 and 53 distortion.Yet, in this case, because flow channel 52 and 53 complete branch, so the effect of limit deformation effect during, but processing the situation that is better than the complete branch of described flow channel aspect the coefficient less than flow channel 52 and 53 complete branches.
Fig. 5 (c) show have branch fully and wherein pole 55 be set at the cross section of the outlet/inlet piping 5 of the structure in the smooth flow channel 54 that connects diverted flow passage 52 and 53.Because pole 55 is set, thus the intensity of smooth flow channel 54 can be improved, and can improve the limit deformation effect of diverted flow passage 52 and 53.
Fig. 5 (d) shows to have branch fully and wherein to connect diverted flow passage 52 and 53 flow channel 54 and narrows to and make its formations contact (contacting with each other by top and the lower inner surface that makes flow channel 54) and the cross section by bonding outlet/inlet piping 5 with the structure that seals flow channel 54 such as spot welding W.In this case, the limit deformation effect is substantially equal to the limit deformation effect of the outlet/inlet piping 5 with complete branched structure, and can improve the processing coefficient.
Fig. 6 A and Fig. 6 B show the outlet/inlet piping structure according to two embodiments of the present invention.In these embodiments, by be combined in pipe axially on equally split into half division member of two unit and form outlet/inlet piping 5 by the fixing described member of welding, hard solder or similar approach.Fig. 6 A shows that attachment portion 5B wherein has the outlet/inlet piping 5 of two diverted flow passages, and Fig. 6 B shows that attachment portion 5b wherein has the outlet/inlet piping 5 of three diverted flow passages.In these embodiments, two half division members are fixed and are integrated obtaining outlet/inlet piping 5, but outlet/inlet piping 5 can be by casting or similar approach from from the beginning of just suitably integrated.The example of the material of outlet/inlet piping 5 is stainless steel, iron, aluminium (comprising aluminum alloy) and copper (comprising Cuprum alloy).
As mentioned above, the present invention can reduce the pressurized zone of each flow channel of outlet/inlet piping at the part place that contacts with upper water box, the pressurized zone of wherein said contacting part office obtains maximum value in prior art products, and can reduce the amount of deformation of joint office.
Therefore owing to can reduce the deformation extent of the joint office of each outlet/inlet piping, thus can limit the container panel that spurred by outlet/inlet piping and the distortion of central layer, and can reduce the stress of pipe root.
Although by the present invention being described, yet be under the prerequisite that does not depart from basic conception of the present invention and scope, can make many modifications for what those of ordinary skills it should be obvious that with reference to the specific embodiment selected for explanation.
Claims (6)
1. the outlet/inlet piping structure of an interstage cooler, described outlet/inlet piping structure makes high-pressure air flow in the interstage cooler from pressurized machine, and described high-pressure air is sent to engine main body from described interstage cooler, described high-pressure air increases its air density because of cooling, wherein at least one pipeline in outlet conduit and the inlet pipe has is configured to make it to be divided into a plurality of flow channels from a flow channel to the attachment portion that arrives described upper water box with the separated remote location of upper water box of described interstage cooler, and can not occur the loss of hydrodynamic pressure between described remote location and described attachment portion, wherein said a plurality of flow channels are connected to described upper water box.
2. the outlet/inlet piping structure of interstage cooler according to claim 1, the ratio of the sectional area of the sectional area of the flow channel of wherein said attachment portion and the flow channel of described remote location is at least 78%.
3. the outlet/inlet piping structure of interstage cooler according to claim 1, wherein by make pipe axially on be divided into a plurality of unit half division member interosculate and fixing described member forms described outlet/inlet piping structure.
4. the outlet/inlet piping structure of interstage cooler according to claim 1 wherein provides the smooth flow channel that connects the described flow channel that separates.
5. the outlet/inlet piping structure of interstage cooler according to claim 4, wherein pole is set in the described smooth flow channel.
6. interstage cooler comprises:
Be arranged to two upper water boxs respect to one another at inlet side and outlet side;
Be connected to the inlet pipe in pressurized machine side pipe road, with so that pass through from the high-pressure air of pressurized machine, and described inlet pipe is set in the described inlet side upper water box;
Be connected to the heat exchanging core of described two upper water boxs, the high-pressure air that flows out from described inlet pipe in order to cooling also increases air density; And
Be connected to the outlet conduit in motor side pipe road, in order to described high-pressure air is sent to described engine main body, and described outlet conduit is set on the described outlet side upper water box;
At least one pipeline in wherein said inlet pipe and the described outlet conduit separates in one way, with had from a flow channel of the separated remote location of described inlet side upper water box a plurality of flow channels to the attachment portion that arrives described inlet side upper water box, make the loss that can not occur hydrodynamic pressure between described remote location and described attachment portion, wherein said a plurality of flow channels are connected to described inlet side upper water box.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005355917 | 2005-12-09 | ||
| JP2005355917 | 2005-12-09 | ||
| JP2006212143 | 2006-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1978875A CN1978875A (en) | 2007-06-13 |
| CN100516478C true CN100516478C (en) | 2009-07-22 |
Family
ID=38130152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101642769A Expired - Fee Related CN100516478C (en) | 2005-12-09 | 2006-12-08 | Outlet/inlet piping structure for intercooler |
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| Country | Link |
|---|---|
| CN (1) | CN100516478C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6011088B2 (en) * | 2012-07-12 | 2016-10-19 | いすゞ自動車株式会社 | Intercooler for vehicle |
| CN104704216B (en) * | 2012-09-26 | 2017-06-30 | 洋马株式会社 | Engine |
| US10041740B2 (en) * | 2015-05-27 | 2018-08-07 | T.Rad Co., Ltd. | Heat exchanger and production method therefor |
-
2006
- 2006-12-08 CN CNB2006101642769A patent/CN100516478C/en not_active Expired - Fee Related
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| CN1978875A (en) | 2007-06-13 |
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Granted publication date: 20090722 Termination date: 20111208 |