CN111927593A - Supercharger air inlet connecting pipe and engine - Google Patents
Supercharger air inlet connecting pipe and engine Download PDFInfo
- Publication number
- CN111927593A CN111927593A CN202010785624.4A CN202010785624A CN111927593A CN 111927593 A CN111927593 A CN 111927593A CN 202010785624 A CN202010785624 A CN 202010785624A CN 111927593 A CN111927593 A CN 111927593A
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- supercharger
- channel
- outlet
- air inlet
- passageway
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0411—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using cooling means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a supercharger air inlet connecting pipe and an engine, and belongs to the technical field of automobiles. The supercharger air inlet connecting pipe comprises a first channel, the first channel is used for air circulation, a first inlet used for air inflow and a first outlet used for air outflow are arranged on the first channel, the first outlet is connected with the supercharger air inlet, and the inner diameter of the first outlet is the same as that of the supercharger air inlet; the second channel is used for exhaust gas circulation in a crankcase, communicated with the supercharger and arranged at intervals with the first channel, an inclination angle alpha is arranged between the wall surface, close to the first channel, of the second channel and the horizontal direction, a third channel used for cooling water circulation in an engine is arranged on the peripheral wall of the second channel, and the third channel is used for heating the peripheral wall of the second channel. The advantages are that: can avoid freezing in the supercharger air inlet connecting pipe and has the characteristic of simple structure.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a supercharger air inlet connecting pipe and an engine.
Background
Because the engine adopts open crankcase ventilation system, can make the interior waste gas of crankcase directly discharge to the atmosphere, cause the pollution of environment easily, so the engine generally adopts closed crankcase ventilation system at present. In an engine adopting a closed crankcase ventilation system, waste gas in a crankcase needs to be introduced into an air inlet connecting pipe for air circulation, and then enters a supercharger along with air through the air inlet connecting pipe for compression, and the supercharger can improve the density of the air so that more air can be filled into a cylinder of the engine, thereby increasing the power of the engine; the exhaust gas in the crankcase is reused, so that the environmental pollution is avoided.
However, in cold regions, because the temperature of air entering the air inlet connecting pipe is very low (below minus 20 ℃), the waste gas in the crankcase is mainly engine combustion leakage waste gas, the temperature is higher, and the moisture content is also higher; therefore, cold air with temperature difference in the air inlet connecting pipe is easily convected with hot exhaust gas, so that the air inlet connecting pipe is iced, and ice blocks in the air inlet connecting pipe possibly damage the supercharger along with air entering the supercharger; meanwhile, cold air may flow into the exhaust gas pipeline in the crankcase, so that icing occurs in the exhaust gas pipeline to block the exhaust gas pipeline, resulting in imbalance of pressure in the crankcase, thereby affecting the performance of the whole engine.
Because the air needs to continuously enter the air inlet connecting pipe in the running process of the engine, the using amount of the air is larger, the air is extremely difficult to heat, the density of the heated air can be changed, and the use performance of the supercharger can be influenced when the heated air enters the supercharger; meanwhile, the temperature of the waste gas in the crankcase is high, so that the waste gas is difficult to cool, and the moisture content in the waste gas is high, so that the icing phenomenon can be easily caused in the process of cooling the waste gas.
In order to solve the problems, an electric heating mode is adopted to heat the air inlet connecting pipe at present so as to improve the temperature in the air inlet connecting pipe, and therefore the phenomenon of icing in the air inlet connecting pipe is prevented. However, the air inlet connecting pipe is electrically heated, and related components, circuits and control units for electric heating need to be arranged, so that the cost is high; the electric heating needs to continuously consume the electric energy of the automobile, so that the oil consumption of the automobile is increased; in addition, cold air may flow into the exhaust gas pipe in the crankcase, which may cause icing in the exhaust gas pipe and blockage of the exhaust gas pipe, resulting in imbalance of pressure in the crankcase.
In view of the above, it is desirable to design a supercharger intake pipe and an engine to solve the above problems.
Disclosure of Invention
The invention aims to provide a supercharger air inlet connecting pipe which can avoid icing in the supercharger air inlet connecting pipe and has the characteristics of simple structure and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a supercharger intake nipple, the supercharger intake nipple comprising:
the first channel is used for air circulation, a first inlet used for air inflow and a first outlet used for air outflow are arranged on the first channel, the first outlet is connected with the supercharger air inlet, and the inner diameter of the first outlet is the same as that of the supercharger air inlet;
the second channel is used for exhaust gas circulation in a crankcase, communicated with the supercharger and arranged at intervals with the first channel, an inclination angle alpha is arranged between the wall surface, close to the first channel, of the second channel and the horizontal direction, a third channel used for cooling water circulation in an engine is arranged on the peripheral wall of the second channel, and the third channel is used for heating the peripheral wall of the second channel.
Preferably, the material of the supercharger air inlet connecting pipe is plastic.
Preferably, the inclination angle α between the wall surface of the second passage adjacent to the first passage and the horizontal direction is 0 ° to 30 °.
Preferably, the second passage is provided with a second inlet for inflow of exhaust gas from the crankcase and a second outlet for outflow of exhaust gas, and the second inlet is communicated with an exhaust gas pipeline of the crankcase, and the second outlet is communicated with the supercharger.
Preferably, the third channel is circumferentially provided on the outer peripheral wall of the second channel.
Preferably, the end of the first channel adjacent to the first outlet is parallel to the end of the second channel adjacent to the second outlet.
Preferably, the first outlet is connected with the supercharger inlet by a clamp.
Preferably, the first channel is straight tubular in shape.
Preferably, the first outlet is connected with the supercharger air inlet through a transition pipeline, and the inner diameters of the first outlet, the supercharger air inlet and the transition pipeline are the same.
Another object of the present invention is to provide an engine, which includes a supercharger intake connection pipe capable of preventing the supercharger intake connection pipe from being frozen, and has the characteristics of simple structure and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
an engine comprising a supercharger inlet connection as described above, the engine further comprising a crankcase and a supercharger, the supercharger inlet connection being arranged between the crankcase and the supercharger, the supercharger inlet connection being adapted to flow air and exhaust gas from the crankcase into the supercharger.
The invention has the beneficial effects that:
the first channel for air circulation and the second channel for waste gas circulation in the crankcase are arranged in the air inlet connecting pipe of the supercharger at intervals, the first outlet on the first channel is connected with the air inlet of the supercharger, so that the air in the first channel flows into the supercharger after being guided, the second channel is communicated with the supercharger, and the waste gas in the second channel flows into the supercharger after being guided, so that the supercharger can supercharge the air and the waste gas, the air inlet connecting pipe of the whole supercharger has a simple structure, the air inlet connecting pipe of the supercharger does not need to be maintained, the oil consumption of an automobile does not need to be consumed, and the production cost is lower; the first channel and the second channel are arranged at intervals, so that convection between waste gas in a crankcase with higher temperature and air with lower temperature can be effectively avoided, and the problem of icing in an air inlet connecting pipe of the supercharger caused by temperature difference convection is avoided; the inner diameter of the first outlet is the same as that of the supercharger air inlet, so that a step structure is avoided between the first channel and the supercharger air inlet, an oil-water mixture mixed in air in the first channel can also directly enter the supercharger, the phenomenon of water accumulation at the joint of the first outlet and the supercharger air inlet is avoided, and the problem that water accumulation in a supercharger air inlet connecting pipe freezes after the engine is stopped is solved; meanwhile, an inclination angle alpha is arranged between the wall surface of the second channel, close to the first channel, and the horizontal direction, so that an oil-water mixture separated from waste gas can smoothly flow out of the second channel into the supercharger, and the problem of icing of the stopped engine caused by water accumulation in the second channel is avoided; and the peripheral wall of the second channel is provided with a third channel for the circulation of cooling water in the engine, and the temperature of the cooling water in the engine is higher in the running process of the engine, so that the cooling water in the third channel heats the peripheral wall of the second channel, the phenomenon that the peripheral wall of the second channel is iced due to the fact that the peripheral wall of the second channel is washed by air with lower temperature can be avoided, meanwhile, a heat preservation effect can be achieved on the second channel, and the icing risk of waste gas in the second channel is reduced.
Drawings
FIG. 1 is a cross-sectional view of a supercharger intake adapter provided in accordance with the present invention;
fig. 2 is a cross-sectional view of a third passageway provided by the present invention.
Description of reference numerals:
1-a first channel; 2-a second channel; 21-a second inlet; 3-a third channel; 31-a third inlet; 32-a third outlet; 4-supercharger air inlet.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features. Like reference numerals refer to like elements throughout the specification.
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the embodiment, the invention provides a supercharger air inlet connecting pipe and an engine comprising the supercharger air inlet connecting pipe. The engine further comprises a crankcase and a supercharger (not shown in the figure), wherein a supercharger air inlet connecting pipe is arranged between the crankcase and the supercharger, and the supercharger air inlet connecting pipe is used for enabling fresh air and waste gas generated in the crankcase to flow into the supercharger uniformly so that the supercharger can compress the fresh air and the waste gas to improve the density of the air and the waste gas, more air and more waste gas can be filled into a cylinder of the engine, and the power of the engine is increased.
Specifically, as shown in fig. 1, the supercharger intake adapter includes a first passage 1 and a second passage 2 that are arranged at an interval. The first channel 1 is used for air circulation, a first inlet (not shown in the figure) for air inflow and a first outlet (not shown in the figure) for air outflow are arranged on the first channel 1, and the first outlet is connected with the supercharger air inlet 4, so that the air in the first channel 1 directly enters the supercharger through the first outlet and the supercharger air inlet 4; and the inner diameter of the first outlet is the same as the inner diameter of the supercharger inlet 4; the second passage 2 is used for exhaust gas circulation in a crankcase, the second passage 2 is communicated with the supercharger through a connecting pipeline, and an inclination angle alpha is arranged between the wall surface, close to the first passage 1, of the second passage 2 and the horizontal direction. The flow direction of the air in the first passage 1 is indicated by an arrow a in fig. 1, and the flow direction of the exhaust gas in the second passage 2 is indicated by an arrow B in fig. 1.
The first channel 1 for air circulation and the second channel 2 for waste gas circulation in a crankcase are arranged in the air inlet connecting pipe of the supercharger at intervals, the first outlet on the first channel 1 is connected with the air inlet 4 of the supercharger, so that air in the first channel 1 flows into the supercharger after being guided, the second channel 2 is communicated with the supercharger, and waste gas in the second channel 2 flows into the supercharger after being guided, so that the supercharger can supercharge air and waste gas, the whole air inlet connecting pipe of the supercharger has a simple structure, the air inlet connecting pipe of the supercharger does not need to be maintained, the oil consumption of an automobile does not need to be consumed, and the production cost is lower; the first channel 1 and the second channel 2 are arranged at intervals, so that convection between waste gas in a crankcase with higher temperature and air with lower temperature can be effectively avoided, and the problem of icing in an air inlet connecting pipe of the supercharger caused by temperature difference convection is avoided; the inner diameter of the first outlet is the same as that of the supercharger air inlet 4, so that a step structure is avoided between the first channel 1 and the supercharger air inlet 4, an oil-water mixture mixed in air in the first channel 1 can also directly enter the supercharger, the phenomenon of water accumulation at the joint of the first outlet and the supercharger air inlet 4 is avoided, and the problem that water accumulation in a supercharger air inlet connecting pipe is frozen after the engine is stopped is solved; meanwhile, an inclination angle alpha is arranged between the wall surface, close to the first channel 1, of the second channel 2 and the horizontal direction, so that an oil-water mixture separated from waste gas can smoothly flow out of the second channel 2 into the supercharger, and the problem of icing of the stopped engine caused by water accumulation in the second channel 2 is avoided.
Further, a third passage 3 for circulation of cooling water in the engine is provided in the outer peripheral wall of the second passage 2, and the cooling water in the third passage 3 is used for heating the outer peripheral wall of the second passage 2. Since the cooling water in the engine cools the parts of the engine, the temperature of the cooling water is high in the process of running the engine, and the cooling water of the engine is introduced into the third channel 3 to heat the peripheral wall of the second channel 2. In this embodiment, the third channel 3 is provided on the outer peripheral wall of the bottom of the second channel 2 to locally heat the second channel 2, so that the cooling water in the third channel 3 heats only the bottom of the second channel 2. In other embodiments, the third channel 3 may be annularly disposed on the outer peripheral wall of the second channel 2 to heat the entire second channel 2. The specific location and shape of the third channel 3 need to be determined according to the actual heating requirement and shape of the second channel 2. Wherein the flow direction of the cooling water in the third passage 3 is shown by the arrow C in fig. 2.
Through the periphery wall at second passageway 2 be provided with the third passageway 3 that is used for the cooling water circulation in the engine, because the cooling water in the engine is higher at the in-process temperature of engine operation, make the cooling water in the third passageway 3 heat the periphery wall of second passageway 2, can avoid the periphery wall of second passageway 2 to receive the lower air of the temperature in the first passageway 1 to erode and take place to freeze, can also play the heat preservation effect to second passageway 2 simultaneously, the risk of freezing of waste gas and the oil water mixture in the second passageway 2 has been reduced.
Furthermore, because the moisture content in the exhaust gas is high, the phenomenon of the exhaust gas freezing is easy to occur in the process of cooling the exhaust gas. Therefore, the supercharger air inlet connecting pipe is made of plastic or other materials with poor heat conductivity, so that heat conduction can be effectively reduced, cold air in the first channel 1 can be prevented from transferring low temperature to the second channel 2 through the outer peripheral wall of the second channel 2, the temperature of waste gas is prevented from being reduced by the cold air, and the problem that the waste gas is easy to freeze in the cooling process of the waste gas can be prevented; and the material cost of the supercharger air inlet connecting pipe is also lower, the supercharger air inlet connecting pipe is not required to be maintained, the oil consumption of an automobile is not required to be consumed, and the production cost is further reduced. In this embodiment, the material of the supercharger air inlet connection pipe is plastic. In other embodiments, the material of the supercharger intake adapter may also be artificial resin or other material with poor thermal conductivity.
In this embodiment, the first outlet of the first passage 1 is directly connected to the supercharger intake 4. In this embodiment, the first outlet is connected to the supercharger inlet 4 by a clamp. In other embodiments, the first outlet may also be connected to the supercharger inlet 4 via a flange. In other embodiments, due to the overall layout requirement of the engine, the first outlet is connected with the supercharger air inlet 4 through a transition pipeline, and the first outlet, the supercharger air inlet 4 and the transition pipeline have the same inner diameter, so that an oil-water mixture mixed in air in the first channel 1 can directly enter the supercharger after passing through the transition pipeline, the phenomenon of water accumulation at the joint of the first outlet, the transition pipeline and the supercharger air inlet 4 is avoided, and the problem of water accumulation icing in the supercharger air inlet connecting pipe after the engine is stopped is solved. Specifically, in this embodiment, the shape of the first channel 1 is set to be a straight tube shape, and the diameter of the first channel 1 may be specifically set according to actual working conditions, or may also be a uniform diameter, or may also be a variable diameter. In other embodiments, the shape of the first channel 1 may also be arranged as a bend.
Specifically, as shown in fig. 1, the inclination angle α between the wall surface on the second passage 2 near the first passage 1 and the horizontal direction is 0 ° to 30 °. In the present embodiment, the inclination angle α is 5 °. Set up inclination alpha to 5, can make the water oil mixture in the waste gas also can flow out smoothly to the booster in following second passageway 2 under the simple condition of processing in, avoid water oil mixture to stay in second passageway 2 to take place the problem of ponding in making second passageway 2, thereby avoid the ponding in the second passageway 2 to lead to the problem of freezing after the engine stops. In other embodiments, the inclination angle α may be set to other angles of 0 to 30.
Further, as shown in fig. 2, a second inlet 21 for inflow of exhaust gas from the crankcase and a second outlet (not shown) for outflow of exhaust gas are provided on the second passage 2, and the second inlet 21 is communicated with an exhaust gas pipeline (not shown) of the crankcase, the second outlet is communicated with the supercharger through a connecting pipeline, and the shape of the second passage 2 can be freely set, and the shape and size of the second inlet 21 can also be freely set according to the requirements of specific working conditions; meanwhile, in the embodiment, the end part of the first channel 1 close to the first outlet is parallel to the end part of the second channel 2 close to the second outlet, so that when the fresh air is guided through the first channel 1 and the second channel 2 and enters the supercharger, the flow direction of the fresh air in the first channel 1 is substantially parallel to the flow direction of the exhaust gas in the second channel 2, and convection does not exist, so that the problem of icing in the supercharger air inlet connecting pipe caused by temperature difference convection can be better avoided. In other embodiments, an angle may be provided between the end of the first passage 1 near the first outlet and the end of the second passage 2 near the second outlet, according to the overall layout of the engine, and under the condition that the flow direction of the exhaust gas in the second passage 2 and the flow direction of the fresh air in the first passage 1 are not in convection.
Specifically, as shown in fig. 2, a third inlet 31 for inflow of cooling water and a third outlet 32 for outflow of cooling water are provided on the third passage 3, and the third inlet 31 communicates with an outlet of engine cooling water and the third outlet 32 communicates with an inlet of engine cooling water. In this embodiment, the third inlet 31 and the third outlet 32 are pipe joints. In other embodiments, the third inlet 31 and the third outlet 32 may also be provided as a threaded interface.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A supercharger intake manifold, comprising:
the first channel (1) is used for air circulation, a first inlet used for air inflow and a first outlet used for air outflow are arranged on the first channel (1), the first outlet is connected with the supercharger air inlet (4), and the inner diameter of the first outlet is the same as that of the supercharger air inlet (4);
the second passageway (2), its waste gas that is used for in the crankcase circulates, second passageway (2) with the booster intercommunication, second passageway (2) with first passageway (1) interval sets up, just be close to on second passageway (2) be provided with inclination alpha between the wall of first passageway (1) and the horizontal direction, the periphery wall of second passageway (2) is provided with third passageway (3) that are used for the cooling water circulation in the engine, third passageway (3) are used for to the periphery wall heating of second passageway (2).
2. The supercharger intake adapter of claim 1, wherein the supercharger intake adapter is made of plastic.
3. A supercharger intake nipple according to claim 1, characterised in that the angle of inclination α between the wall surface of the second channel (2) adjacent to the first channel (1) and the horizontal is 0 ° -30 °.
4. Supercharger intake nipple according to claim 1, characterised in that a second inlet (21) for inflow of exhaust gases from the crankcase and a second outlet for outflow of exhaust gases are provided in the second channel (2), and that the second inlet (21) communicates with the exhaust gas line of the crankcase and the second outlet communicates with the supercharger.
5. A supercharger intake nipple according to claim 1, characterised in that the third channel (3) is arranged around the peripheral wall of the second channel (2).
6. A supercharger intake nipple according to claim 4, characterised in that the end of the first channel (1) close to the first outlet is parallel to the end of the second channel (2) close to the second outlet.
7. Supercharger intake connection according to claim 1, characterised in that the first outlet is connected in a clip-type manner to the supercharger intake (4).
8. Supercharger intake nipple according to claim 1, characterised in that the first channel (1) is straight tubular in shape.
9. Supercharger intake connection according to claim 1, characterised in that the first outlet is connected to the supercharger intake (4) via a transition line, and that the first outlet, the supercharger intake (4) and the transition line have the same internal diameter.
10. An engine comprising a supercharger inlet connection according to any one of claims 1-9, the engine further comprising a crankcase and a supercharger, the supercharger inlet connection being arranged between the crankcase and the supercharger, the supercharger inlet connection being adapted to flow air and exhaust gas from the crankcase into the supercharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010785624.4A CN111927593A (en) | 2020-08-06 | 2020-08-06 | Supercharger air inlet connecting pipe and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010785624.4A CN111927593A (en) | 2020-08-06 | 2020-08-06 | Supercharger air inlet connecting pipe and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111927593A true CN111927593A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010785624.4A Pending CN111927593A (en) | 2020-08-06 | 2020-08-06 | Supercharger air inlet connecting pipe and engine |
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| Country | Link |
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| CN (1) | CN111927593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389616A (en) * | 2021-07-30 | 2021-09-14 | 广西玉柴机器股份有限公司 | Method for preventing closed waste gas internal circulation from oil channeling |
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| US20080314351A1 (en) * | 2005-06-15 | 2008-12-25 | Volvo Lastvagnar Ab | Turbocharger Intake Air Chamber Provided with Air Inlet from Crankcase Blowby Ventilation (Ccv) |
| CN101960105A (en) * | 2007-12-27 | 2011-01-26 | 丰田自动车株式会社 | Intake pipe structure of internal combustion engine |
| CN103534457A (en) * | 2011-05-19 | 2014-01-22 | 丰田自动车株式会社 | Air intake structure for internal combustion engine |
| CN210239788U (en) * | 2019-06-28 | 2020-04-03 | 潍柴动力股份有限公司 | Engine respirator structure and engine system of giving vent to anger |
| JP2020097909A (en) * | 2018-12-18 | 2020-06-25 | 株式会社クボタ | Blow-by gas recirculation device |
| JP2020097910A (en) * | 2018-12-18 | 2020-06-25 | 株式会社クボタ | Blow-by gas recirculation device |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080314351A1 (en) * | 2005-06-15 | 2008-12-25 | Volvo Lastvagnar Ab | Turbocharger Intake Air Chamber Provided with Air Inlet from Crankcase Blowby Ventilation (Ccv) |
| CN101960105A (en) * | 2007-12-27 | 2011-01-26 | 丰田自动车株式会社 | Intake pipe structure of internal combustion engine |
| CN103534457A (en) * | 2011-05-19 | 2014-01-22 | 丰田自动车株式会社 | Air intake structure for internal combustion engine |
| JP2020097909A (en) * | 2018-12-18 | 2020-06-25 | 株式会社クボタ | Blow-by gas recirculation device |
| JP2020097910A (en) * | 2018-12-18 | 2020-06-25 | 株式会社クボタ | Blow-by gas recirculation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113389616A (en) * | 2021-07-30 | 2021-09-14 | 广西玉柴机器股份有限公司 | Method for preventing closed waste gas internal circulation from oil channeling |
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Application publication date: 20201113 |
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