CN109826730B - Automobile and air inlet device thereof - Google Patents
Automobile and air inlet device thereof Download PDFInfo
- Publication number
- CN109826730B CN109826730B CN201910228459.XA CN201910228459A CN109826730B CN 109826730 B CN109826730 B CN 109826730B CN 201910228459 A CN201910228459 A CN 201910228459A CN 109826730 B CN109826730 B CN 109826730B
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- Prior art keywords
- air inlet
- air
- gas
- control valve
- inlet pipe
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000007789 gas Substances 0.000 claims abstract description 77
- 239000003345 natural gas Substances 0.000 claims abstract description 45
- 239000002912 waste gas Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 7
- 239000003570 air Substances 0.000 abstract description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention discloses an air inlet device, which comprises an air inlet pipeline, wherein the air inlet pipeline is provided with a first control valve for controlling the flow rate of air entering the air inlet pipeline and a second control valve for controlling the flow rate of waste gas entering the air inlet pipeline; the control device comprises a pedal, a first control valve, a second control valve, a control part and a feedback part, wherein the pedal is connected with the first control valve, the control part is used for controlling the first control valve to open by a preset angle when a driver steps on the pedal, the feedback part is connected with the control part and used for converting a flow signal of a mixed gas of air and natural gas into an electric signal and transmitting the electric signal to the control part, and when the control part receives the electric signal of the feedback part, the control part controls the second control valve to open by the preset angle so that waste gas with a preset flow flows into an air inlet pipeline. The invention also discloses an automobile comprising the air inlet device. The air inlet device can ensure that air, natural gas and waste gas are uniformly mixed, so that the air mixing amount entering each cylinder is kept consistent, and the engine works stably.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an air inlet device. The invention also relates to an automobile with the air inlet device.
Background
Natural gas can be mixed with air sufficiently, and since it is burned with little particulate emissions and little CO is produced after combustion, the technology of using natural gas as fuel in the engine field has been mature in recent years.
Most of natural gas engines are modified based on the existing diesel engine or gasoline engine model, and can be classified into ignition natural gas engines, compression ignition natural gas engines and diesel ignition natural gas engines according to the ignition mode. At present, the natural gas engine needs to meet the increasingly strict requirements of emission and high detonation pressure, so that the combustion temperature needs to be reduced by introducing waste gas, so that the emission of nitrogen oxides can be reduced, and meanwhile, in order to further reduce the power loss, the mixing amounts of air, waste gas and natural gas need to be matched, and the air, waste gas and natural gas are uniformly mixed; however, it is difficult for the air intake system in the existing market to ensure uniformity of air, exhaust gas and natural gas mixture, so that the air mixture entering each cylinder is difficult to be consistent, which results in unstable operation of the engine.
Therefore, how to avoid unstable engine operation caused by uneven mixing of air, exhaust gas and natural gas is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The object of the present invention is to provide an air intake device that can precisely control the flow of exhaust gas, air and natural gas. Thereby can guarantee that air, waste gas and natural gas three misce bene to make engine work steady. Another object of the present invention is to provide an automobile comprising the above air intake device.
In order to achieve the above object, the present invention provides an air intake device including an air intake duct provided with a first control valve for controlling a flow rate of air into the air intake duct and a second control valve for controlling a flow rate of exhaust gas into the air intake duct; the control device comprises a first control valve, a control part and a feedback part, wherein the control part is connected with the first control valve and used for controlling the first control valve to open by a preset angle when a driver steps on a pedal, the feedback part is connected with the control part and used for converting a flow signal of a mixed gas of air and natural gas into an electric signal and transmitting the electric signal to the control part, and when the control part receives the electric signal of the feedback part, the control part controls the second control valve to open by the preset angle so that waste gas with preset flow flows into an air inlet pipeline.
Preferably, the device further comprises a test tube connected with the feedback part and used for measuring the mixed gas flow of the air and the natural gas.
Preferably, the test tube is in particular a venturi tube.
Preferably, the gas inlet pipe is provided with a gas inlet pipe and a gas diffusion hole which is arranged in the gas inlet pipe and used for diffusing natural gas to the inside of the gas inlet pipe to realize mixing with air.
Preferably, the water draining device further comprises a water draining groove which is arranged at the bottom of the inner side wall of the air inlet pipeline and used for draining water drops in the air inlet pipeline.
Preferably, the air conditioner further comprises a first air inlet pipe connected with the first control valve and used for introducing air, and a second air inlet pipe connected with the air inlet pipeline and used for introducing exhaust gas.
Preferably, the engine further comprises an anti-surge valve connected with the first air inlet pipe for releasing high-pressure gas in the first air inlet pipe when the first control valve is closed to prevent engine surge, and an anti-surge valve connecting pipe welding part connected with the anti-surge valve and used for enabling the high-pressure gas in the first air inlet pipe to flow to a pipeline before supercharging.
Preferably, the air inlet pipeline comprises an air inlet bent pipe, and the anti-surge valve is connected with the air inlet bent pipe through an anti-surge valve connecting pipe.
Preferably, the engine further comprises a plurality of brackets for fixedly mounting the second air inlet pipe on the engine cylinder body, and pipe clamps sleeved on the outer side wall of the second air inlet pipe and used for fixing the second air inlet pipe on the brackets.
The invention also provides an automobile comprising the air inlet device.
Compared with the background art, the invention designs the air inlet device aiming at different requirements of the natural gas engine, and the uniformity of the air mixing amount of air, waste gas and natural gas is difficult to ensure by the traditional air inlet system, so that the air mixing amount entering each cylinder is difficult to be kept consistent, and the engine can work unstably. Therefore, an air inlet device capable of ensuring uniform mixing of air, exhaust gas and natural gas so as to ensure stable operation of the engine is necessary.
Specifically, the air inlet device comprises an air inlet pipeline, wherein the air inlet pipeline is used for conveying air, natural gas and waste gas to an engine cylinder body, so that combustion work in the cylinder body is realized; the air inlet pipeline is connected with a first control valve and a second control valve, wherein the first control valve is used for controlling the flow rate of air entering the air inlet pipeline, and the second control valve is used for controlling the flow rate of waste gas entering the air inlet pipeline; further, the air inlet device is also provided with a control part and a feedback part; the control part is connected with the first control valve, and when a driver steps on the pedal according to driving intention, the control part can receive signals transmitted by the pedal, so as to control the first control valve to open a preset angle, and fresh air with preset flow can pass through the first control valve; the feedback part is connected with the control part, and the feedback part can convert the flow signal of the air and natural gas mixture into an electric signal and transmit the electric signal to the control part, and when the control part receives the electric signal of the feedback part, the control part controls the second control valve to open by a preset angle, so that a certain amount of waste gas can pass through the second control valve, and a certain amount of waste gas can enter the air inlet pipeline to be uniformly mixed with the air and the natural gas. The arrangement mode can accurately control the air flow entering the air inlet pipeline and the exhaust gas flow of the air inlet pipeline, so that the air, the exhaust gas and the natural gas can be uniformly mixed on the basis of reducing the emission of nitrogen oxides and reducing the power loss, the air mixing quantity entering each cylinder is kept consistent, and the engine can work stably.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an air intake device according to an embodiment of the present invention;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a longitudinal cross-sectional view of FIG. 1;
FIG. 5 is a schematic diagram of the assembly of the feedback section and the test tube;
fig. 6 is a schematic structural view of a drain tank in an intake duct;
fig. 7 is a schematic diagram of logic control of an air intake device according to an embodiment of the present invention.
Wherein:
1-intake manifold, 2-intake elbow, 3-exhaust gas recirculation module, 4-second control valve, 5-first control valve, 6-second intake pipe, 7-first bracket, 8-second pipe clamp, 9-second bracket, 10-second pipe clamp, 11-anti-surge valve take-over welding component bracket, 12-anti-surge valve take-over welding component, 13-rubber pipe, 14-anti-surge valve, 15-anti-surge valve connecting pipe, 16-first intake pipe, 17-module bracket, 18-gas intake pipe, 19-water drain tank, 20-gas diffusion hole, 21-gas closing-in passage, 22-exhaust gas recirculation closing-in passage, 23-exhaust gas circulation passage, 24-mixture gas diffusion passage, 25-exhaust gas recirculation control passage, 26-feedback portion, 27-control portion.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The core of the invention is to provide an air inlet device which can precisely control the flow of exhaust gas, air and natural gas. Thereby can guarantee that air, waste gas and natural gas three misce bene to make engine work steady. Another core of the present invention is to provide an automobile including the above-described air intake device.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
The terms "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.
Referring to fig. 1 to 7, fig. 1 is a schematic structural diagram of an air intake device according to an embodiment of the present invention; FIG. 2 is a bottom view of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 1; FIG. 4 is a longitudinal cross-sectional view of FIG. 1; FIG. 5 is a schematic diagram of the assembly of the feedback section and the test tube; fig. 6 is a schematic structural view of a drain tank in an intake duct; fig. 7 is a schematic diagram of logic control of an air intake device according to an embodiment of the present invention.
The air inlet device provided by the embodiment of the invention comprises an air inlet pipeline, wherein the air inlet pipeline is used for conveying air, natural gas and waste gas mixed gas to an engine cylinder body, so that combustion work in the cylinder body is realized; the air inlet pipeline is connected with a first control valve 5 and a second control valve 4, wherein the first control valve 5 is used for controlling the flow rate of air entering the air inlet pipeline, and the second control valve 4 is used for controlling the flow rate of waste gas entering the air inlet pipeline.
Further, in order to realize accurate control of the air intake device, the air intake device is further provided with a control part 27 and a feedback part 26; the control part 27 is connected with the first control valve 5, when a driver steps on the pedal according to the driving intention, the control part 27 can receive a signal transmitted by the pedal and further control the first control valve 5 to open a preset angle, so that fresh air with a preset flow rate can pass through the first control valve 5, and the air with the preset flow rate passing through the first control valve 5 is further mixed with natural gas with a certain flow rate and enters the air inlet pipeline; the feedback part 26 is connected with the control part 27, and the feedback part 26 can convert flow signals of the air and natural gas mixture into electric signals and transmit the electric signals to the control part 27; when the control part 27 receives the electric signal of the feedback part 26, the control part 27 calculates the execution signal given to the second control valve 4, so that the second control valve 4 is opened by a preset angle under the action of the control part 27, and a certain amount of exhaust gas can pass through the second control valve 4 and enter the air inlet pipeline to be uniformly mixed with air and natural gas. Of course, the feedback unit 26 may be specifically configured as a corresponding flow sensor according to actual needs.
The arrangement mode can accurately control the air flow entering the air inlet pipeline and the exhaust gas flow of the air inlet pipeline, so that the air, the exhaust gas and the natural gas are uniformly mixed on the basis of reducing the emission of nitrogen oxides and reducing the power loss, the air mixing quantity entering each cylinder is kept consistent, and the engine can work stably.
Specifically, the intake duct includes an intake manifold 1, an intake elbow 2, an exhaust gas recirculation module 3, a first intake pipe 16, and a second intake pipe 6; the air inlet manifold 1 is used for distributing air and natural gas mixture into each cylinder air inlet channel, the air inlet bent pipe 2 is connected with the air inlet manifold 1, and the exhaust gas recirculation module 3 is connected with the air inlet bent pipe 2; further, the exhaust gas recirculation module 3 is connected with a first control valve 5, the first control valve 5 is connected with a first air inlet pipe 16, the first air inlet pipe 16 is used for introducing fresh air, meanwhile, the exhaust gas recirculation module 3 is connected with a second air inlet pipe 6, the second air inlet pipe 6 is used for introducing exhaust gas, and the second control valve 4 is fixedly connected to the exhaust gas recirculation module 3.
In the embodiment of the invention, the air inlet pipe is further provided with a gas inlet pipe 18 for introducing natural gas and a gas diffusion hole 20 arranged on the gas inlet pipe 18, and the gas diffusion hole 20 can diffuse the natural gas into the air inlet pipe, so that the natural gas and the air can be fully mixed.
In addition, in order to accurately measure the mass flow of the gas after mixing the natural gas and the air, the air inlet pipeline is further provided with a test tube connected with the feedback part 26, and of course, the test tube can be specifically configured as a venturi tube according to actual needs, that is, the flow of the mixed gas of the air and the natural gas can be measured by utilizing the structural principle of the venturi tube.
More specifically, the inside of the venturi tube is provided with a gas necking channel 21, and when the mixed gas of air and natural gas passes through the gas necking channel 21, the gas accelerates in the channel due to the reduced section, so that the characteristics of the venturi tube are utilized; correspondingly, the flow meter on the venturi tube can accurately measure the mass flow of the mixed gas, and finally, the mixed gas of the air and the natural gas and the waste gas are mixed in the air inlet pipeline, when the mixed gas of the air, the natural gas and the waste gas passes through the mixed gas diffusion channel 24, the cross section is increased, the flow rate of the gas is reduced, and finally, the mixed gas enters the air inlet manifold 1.
In addition, the exhaust gas passing through the second control valve 4 enters the exhaust gas recirculation control passage 25, and then enters the exhaust gas circulation passage 23 through the internal passage, and the exhaust gas, when passing through the exhaust gas recirculation closing-in passage 22, decreases in cross section, increases in gas flow velocity, and finally enters the intake duct.
In order to optimize the above embodiment, the air intake pipe is further provided with a water drain groove 19, and the water drain groove 19 should be disposed at the bottom of the inner sidewall of the air intake pipe, for example, according to the specific structure of the air intake pipe, the water drain groove 19 may be disposed at the bottom of the inner sidewall of the air intake elbow pipe 2 and the exhaust gas recirculation module 3, and since a large amount of water vapor is contained in the mixture of air, natural gas and exhaust gas, when the flow rate of the gas is slow, the water vapor can be condensed into water droplets, and the water droplets can be introduced into the air intake manifold 1 in the above manner, and finally evaporation of the water droplets can be realized, so as to ensure the stability and safety of the operation of the exhaust gas recirculation module 3 and the respective components.
On the basis of the above, the air inlet device further comprises an anti-surge valve 14 and an anti-surge valve connecting pipe welding part 12, wherein one end of the anti-surge valve connecting pipe welding part 12 is fixed on the right side body of the engine through an anti-surge valve connecting pipe welding part bracket 11, and the other end of the anti-surge valve connecting pipe welding part 12 is fixed on the left side body of the engine through a second bracket 9 of a second air inlet pipe 6, so that the reliability of the connection of the anti-surge valve connecting pipe welding part 12 can be realized, and the anti-surge valve connecting pipe welding part 12 is prevented from cracking due to overlarge vibration; the anti-surge valve connecting pipe welding part 12 is connected with the anti-surge valve 14 through a rubber pipe 13, one end of the anti-surge valve 14 can be connected with the first air inlet pipe 16 through the rubber pipe 13, and the other end of the anti-surge valve connecting pipe welding part is connected with a pipeline before pressurization through the rubber pipe 13; the signal port of the anti-surge valve 14 is connected with the air inlet elbow pipe 2 through an anti-surge valve connecting pipe 15.
In this way, when the engine suddenly decelerates, the first control valve 5 is closed, so that the pressurized gas cannot enter the cylinder, and the gas pressure in the first air inlet pipe 16 is increased and the gas pressure in the air inlet elbow 2 is reduced, at this time, the anti-surge valve 14 can sense that the gas pressure in the air inlet elbow 2 suddenly decreases, the internal channel of the anti-surge valve 14 is opened, and then the high-pressure gas in the first air inlet pipe 16 is introduced into the pipeline before pressurization through the anti-surge valve connecting pipe welding component 12, so that the pressure can be released, and the risk of engine surge is reduced.
In order to ensure the connection firmness of the second air inlet pipe 6, a plurality of brackets and pipe clamps can be further arranged, wherein the brackets are used for fixedly mounting the second air inlet pipe 6 on an engine cylinder body, the pipe clamps are sleeved on the outer side wall of the second air inlet pipe 6, and the pipe clamps can fix the second air inlet pipe 6 on the brackets, so that the second air inlet pipe 6 is prevented from being cracked due to overlarge vibration; for example, a first bracket 7, a first pipe clamp 8, a second bracket 9 and a second pipe clamp 10 may be provided, wherein the first bracket 7 is connected with the first pipe clamp 8 in a matching manner, and the second bracket 9 is connected with the second pipe clamp 10 in a matching manner.
In addition, the second air inlet pipe 6 is also provided with a first corrugated pipe and a second corrugated pipe so as to compensate for manufacturing errors of the pipe fitting without affecting the installation of parts; one end of the second air inlet pipe 6 is connected with an exhaust manifold, and the other end of the second air inlet pipe is connected with the exhaust gas recirculation module 3, so that the exhaust gas is introduced into the exhaust gas recirculation module 3; the egr module 3 is further fixed to the intake manifold 1 by the module bracket 17, and since the egr module 3 is long so as to form a long cantilever structure, the module bracket 17 can effectively reduce the vibration of the egr module 3.
The automobile provided by the invention comprises the air inlet device described in the specific embodiment; other parts of the car may be referred to the prior art and are not developed herein.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The automobile and the air inlet device thereof provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. An air inlet device is characterized by comprising an air inlet pipeline, wherein the air inlet pipeline is provided with a first control valve (5) used for controlling the flow rate of air entering the air inlet pipeline and a second control valve (4) used for controlling the flow rate of waste gas entering the air inlet pipeline;
the control device further comprises a control part (27) connected with the first control valve (5) and used for controlling the first control valve (5) to be opened by a preset angle when a driver steps on the pedal, and a feedback part (26) connected with the control part (27) and used for converting flow signals of air and natural gas mixture into electric signals and transmitting the electric signals to the control part (27), wherein when the control part (27) receives the electric signals of the feedback part (26), the control part (27) controls the second control valve (4) to be opened by the preset angle so that waste gas with the preset flow flows into the air inlet pipeline;
the test tube is connected with the feedback part (26) and used for measuring the flow of the mixed gas of the air and the natural gas;
the test tube is specifically a venturi tube;
the water draining groove (19) is arranged at the bottom of the inner side wall of the air inlet pipeline and is used for draining water drops in the air inlet pipeline;
the device also comprises a first air inlet pipe (16) connected with the first control valve (5) and used for introducing air, and a second air inlet pipe (6) connected with the air inlet pipeline and used for introducing waste gas;
the engine further comprises an anti-surge valve (14) connected with the first air inlet pipe (16) and used for releasing high-pressure gas in the first air inlet pipe (16) when the first control valve (5) is closed so as to prevent engine surge, and an anti-surge valve connecting pipe welding component (12) connected with the anti-surge valve (14) and used for enabling the high-pressure gas in the first air inlet pipe (16) to flow to a pipeline before supercharging.
2. The air inlet device according to claim 1, characterized in that the air inlet pipe is provided with a gas inlet pipe (18) and gas diffusion holes (20) arranged in the gas inlet pipe (18) for diffusing natural gas into the air inlet pipe to be mixed with air.
3. The air intake device according to claim 1, characterized in that the air intake conduit comprises an air intake elbow (2), the anti-surge valve (14) being connected to the air intake elbow (2) by an anti-surge valve connection pipe (15).
4. An air inlet device according to claim 3, further comprising a plurality of brackets for fixedly mounting the second air inlet pipe (6) on an engine block and pipe clamps sleeved on the outer side wall of the second air inlet pipe (6) for fixing the second air inlet pipe (6) on the brackets.
5. An automobile comprising the air intake device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228459.XA CN109826730B (en) | 2019-03-25 | 2019-03-25 | Automobile and air inlet device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228459.XA CN109826730B (en) | 2019-03-25 | 2019-03-25 | Automobile and air inlet device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109826730A CN109826730A (en) | 2019-05-31 |
| CN109826730B true CN109826730B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910228459.XA Active CN109826730B (en) | 2019-03-25 | 2019-03-25 | Automobile and air inlet device thereof |
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| CN (1) | CN109826730B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630409B (en) * | 2019-11-22 | 2020-04-17 | 潍柴动力股份有限公司 | Gas mixing device and natural gas engine |
| CN112761775B (en) * | 2021-01-14 | 2022-04-29 | 东风商用车有限公司 | Anti-surge gas engine pressurization system |
| CN115977837B (en) * | 2023-03-17 | 2023-07-18 | 潍柴动力股份有限公司 | Vehicle exhaust gas recirculation line and method for designing a vehicle exhaust gas recirculation line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203476553U (en) * | 2013-09-25 | 2014-03-12 | 江铃汽车股份有限公司 | Air inlet manifold structure |
| CN104533675A (en) * | 2014-11-14 | 2015-04-22 | 宁波中策动力机电集团有限公司 | Fuel gas air-fuel ratio control device |
| KR20150140482A (en) * | 2014-06-05 | 2015-12-16 | 현대중공업 주식회사 | Engine system |
| CN209654149U (en) * | 2019-03-25 | 2019-11-19 | 安徽华菱汽车有限公司 | A kind of automobile and its inlet duct |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9845774B2 (en) * | 2014-01-21 | 2017-12-19 | General Electric Company | Multi-fuel engine system |
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2019
- 2019-03-25 CN CN201910228459.XA patent/CN109826730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203476553U (en) * | 2013-09-25 | 2014-03-12 | 江铃汽车股份有限公司 | Air inlet manifold structure |
| KR20150140482A (en) * | 2014-06-05 | 2015-12-16 | 현대중공업 주식회사 | Engine system |
| CN104533675A (en) * | 2014-11-14 | 2015-04-22 | 宁波中策动力机电集团有限公司 | Fuel gas air-fuel ratio control device |
| CN209654149U (en) * | 2019-03-25 | 2019-11-19 | 安徽华菱汽车有限公司 | A kind of automobile and its inlet duct |
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| CN109826730A (en) | 2019-05-31 |
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