CN206092165U - Engine pressure release pipeline and engine - Google Patents
Engine pressure release pipeline and engine Download PDFInfo
- Publication number
- CN206092165U CN206092165U CN201621113356.7U CN201621113356U CN206092165U CN 206092165 U CN206092165 U CN 206092165U CN 201621113356 U CN201621113356 U CN 201621113356U CN 206092165 U CN206092165 U CN 206092165U
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- engine
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- pipeline
- pipeline body
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- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Supercharger (AREA)
- Safety Valves (AREA)
Abstract
The utility model provides an engine pressure release pipeline and engine, wherein, engine pressure release pipeline includes: gaseous relief valve and gaseous relief valve are installed to the pipeline body on the pipeline body, and the first end of pipeline body is connected with the engine air throttle, and the second end of pipeline body is connected with the booster through the intercooler, wherein, when this internal gas pressure of pipeline was greater than a pressure default, the gas of gaseous relief valve in to the pipeline body carried out the pressure release, when this internal gas pressure of pipeline was lighter than the pressure default, the gas of gaseous relief valve in to the pipeline body carried out the pressure release. The utility model provides a current pressure boosting type engine when section valve closure, produce great disappointing noise to reduce the problem of the NVH performance of car, increased the NVH performance of car.
Description
Technical Field
The utility model belongs to the technical field of the car and specifically relates to an engine pressure release pipeline and engine are related to.
Background
With the rapid development of the automobile industry, the annual growth rate of automobiles is higher and higher, and people pay more and more attention to noise, vibration and harshness (NVH) of automobiles while making requirements on safety, reliability and low oil consumption of automobiles. The supercharged engine is used as a main noise vibration source of an automobile, and NVH of the supercharged engine directly influences the satisfaction degree of a customer on the whole automobile. The process of noise generation of the supercharged engine is as follows:
when an automobile provided with a supercharged engine runs normally, air enters an intercooler for cooling through a supercharger after passing through an air filter, and then enters a combustion chamber of the engine. If the driver suddenly releases the throttle during normal driving, the throttle valve of the engine is immediately closed, but the supercharger still keeps the original high-speed operation state, so that the pressure in the air inlet pipe connected with the throttle valve of the engine is continuously increased. In order to ensure that the supercharger impeller is not damaged, the pressure in the intake pipe needs to be relieved. When carrying out the pressure release processing to the pressure in the intake pipe among the prior art, can adopt pneumatic mechanical type relief valve, rely on the spring rate of pressure and relief valve to carry out pressure control, but this pneumatic mechanical type relief valve is at the during operation because there is very big pressure differential at the relief valve both ends for there is obvious "puff" sound in the pressure release process, thereby forms the noise of leaking of engine, and this has reduced the NVH performance of engine to a great extent. In addition, an electric pressure relief valve can be further adopted, the pressure relief valve is controlled through electric control, however, the pressure relief valve can have different air leakage sounds during working, a plurality of pressure sensors need to be added in the calibration process, the calibration period and the cost are increased, and the NVH performance of the engine is reduced to a great extent.
In summary, when the throttle valve is closed, the conventional supercharged engine generates large bleed noise, and the NVH performance of the automobile is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an engine pressure release pipeline and engine to solve current booster-type engine and when the throttle was closed, produce great disappointing noise, reduce the problem of the NVH performance of car.
In a first aspect, an engine pressure relief circuit is provided, comprising:
the gas pressure relief valve and the gas safety valve are mounted on the pipeline body, the first end of the pipeline body is connected with an engine throttle valve, and the second end of the pipeline body is connected with the supercharger through an intercooler; wherein,
when the gas pressure in the pipeline body is greater than a preset pressure value, the gas safety valve releases the pressure of the gas in the pipeline body; and when the gas pressure in the pipeline body is smaller than the preset pressure value, the gas pressure relief valve relieves the pressure of the gas in the pipeline body.
Optionally, a first mounting opening is formed in the pipeline body, an air inlet of the gas relief valve is mounted on the first mounting opening, and an air outlet of the gas relief valve is communicated with an air filter of the engine.
Optionally, a second mounting port is provided on the pipeline body, an air inlet of the gas safety valve is mounted on the second mounting port, and an air outlet of the gas safety valve is communicated with the atmosphere.
Optionally, the pipe body has a wall thickness in a range of 1.8mm to 2.2 mm.
Optionally, the pipeline body is a hard plastic pipeline.
In a second aspect, the present invention further provides an engine, wherein the engine comprises an engine throttle valve and any one of the above-mentioned engine pressure relief pipeline, wherein the first end of the pipeline body of the engine pressure relief pipeline is connected with the engine throttle valve.
The utility model has the advantages that:
the utility model provides an engine pressure release pipeline, including the pipeline body of installing gas relief valve and gas safety valve, and the first end and the engine air throttle of this pipeline body are connected, the second end passes through the intercooler and is connected with the booster, like this, when closing because the engine air throttle of engine, but the booster still operates at a high speed when leading to this internal gas pressure of pipeline to increase, if this internal gas pressure of pipeline is greater than a pressure default, can carry out the pressure release to this internal gas of pipeline through the gas safety valve, and when this internal gas pressure of pipeline is less than this pressure default, carry out the pressure release to this internal gas of pipeline through the gas relief valve. Like this, can come the maximum value of the internal gas pressure of control pipeline through the gas safety valve to reduce the pressure difference value of gas relief valve air inlet and gas outlet both ends department, thereby make when carrying out the pressure release through the gas relief valve to this internal gas of pipeline, the pressure release noise is less, has solved current booster-type engine and when the throttle is closed, produces great disappointing noise, thereby reduces the problem of the NVH performance of car, has increased the NVH performance of car.
Drawings
Fig. 1 shows a schematic structural diagram of an engine pressure relief pipeline according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In an embodiment of the present invention, as shown in fig. 1, the engine pressure relief pipeline includes: the gas pressure regulating device comprises a pipeline body 1, wherein a gas pressure relief valve 2 and a gas safety valve 3 are installed on the pipeline body 1, a first end of the pipeline body 1 is connected with an engine throttle valve, and a second end of the pipeline body 1 is connected with a supercharger through an intercooler; when the gas pressure in the pipeline body 1 is greater than a preset pressure value, the gas safety valve 3 relieves the pressure of the gas in the pipeline body 1; when the gas pressure in the pipeline body 1 is smaller than the preset pressure value, the gas pressure relief valve 2 relieves the pressure of the gas in the pipeline body 1.
In this embodiment, through set up gas relief valve 2 and gas safety valve 3 on the pipeline body 1 of installation between booster and engine throttle, make the driver loosen the car throttle suddenly, the engine throttle closes immediately promptly, but the booster still keeps original high-speed running state, when causing the gas pressure in the pipeline body 1 to continuously increase, if the gas pressure in the pipeline body 1 is greater than a pressure default, can carry out the pressure release through gas safety valve 3 to the gas in the pipeline body 1, thereby make and to control the maximum value of the gas pressure in the pipeline body 1 through gas safety valve 3, thereby reduce the pressure difference at gas relief valve 2 air inlet and gas outlet both ends. Like this, the gas pressure in pipeline body 1 is less than this pressure default, when carrying out the pressure release through gas relief valve 2 to the gas in the pipeline body 1 for the noise that the pressure release caused is less or can not produce the pressure release noise, has solved current booster-type engine and when the throttle is closed, produces great disappointing noise, thereby reduces the problem of the NVH performance of car, has increased the NVH performance of car.
Like this, this embodiment is through setting up gas relief valve and gas safety valve on the pipeline body of installation between booster and engine throttle, come the maximum value of this internal gas pressure of control tube way through gas safety valve, the pressure difference value of gas relief valve air inlet and gas outlet both ends department has been reduced, thereby make when carrying out the pressure release through this internal gas of gas relief valve pair pipeline, the pressure release noise is less, current booster-type engine has been solved when the throttle is closed, produce great disappointing noise, thereby reduce the problem of the NVH performance of car, the NVH performance of car has been increased.
With reference to fig. 1, in another embodiment of the present invention, a first mounting opening 11 is provided on the pipeline body 1, an air inlet of the gas relief valve 2 is mounted on the first mounting opening 11, and an air outlet of the gas relief valve 2 is communicated with an air cleaner of the engine. Like this, the air inlet of gas relief valve 2 can be linked together through the gas of first installing port 11 in with pipeline body 1 to because the gas outlet of gas relief valve 2 is linked together with engine air cleaner, when making the gas in the pipeline body 1 need the pressure release, the gas in the pipeline body 1 can circulate to engine air cleaner in through gas relief valve 2, thereby makes the gas in the pipeline body 1 can cyclic utilization.
In addition, specifically, a second mounting opening 12 is arranged on the pipeline body 1, an air inlet of the gas safety valve 3 is mounted on the second mounting opening 12, and an air outlet of the gas safety valve 3 is communicated with the atmosphere. Like this, the air inlet of gas safety valve 3 can be linked together through the gas in second installing port 12 and the pipeline body 1, and because the export of gas safety valve 3 is linked together with the atmosphere, thereby when making the gas in the pipeline body 1 need the pressure release, can not produce the phenomenon that the gas circulation blockked up, make the gas in the pipeline body 1 can be through 3 smooth circulation to the atmosphere of gas safety valve, thereby make and to be able to control the maximum value of the gas pressure in the pipeline body 1 through gas safety valve 3, the effect that reduces the pressure difference value of 2 air inlets of gas relief valve and gas outlet both ends has been reached, thereby make when carrying out the pressure release through gas relief valve 2, can not produce the pressure release noise, or the pressure release noise that produces is less, the NVH performance of car has been increased.
Further, optionally, in another embodiment of the present invention, the pipe wall thickness of the pipeline body 1 ranges from 1.8mm to 2.2 mm. Specifically, the pipeline body 1 is a hard plastic pipeline. Like this, set up the pipe wall thickness of pipeline body 1 to 1.8mm to 2.2mm, and the material is hard plastic, can be so that pipeline body 1 when can bear the gas pressure in the pipeline body 1, save material cost.
In another embodiment of the present invention, there is provided an engine, the engine includes an engine throttle valve and the engine pressure relief pipeline in any of the above embodiments, wherein the first end of the pipeline body of the engine pressure relief pipeline is connected to the engine throttle valve. In particular, the engine is a supercharged engine.
Like this, through connect this engine pressure release pipeline on engine throttle, make the driver loosen the gas throttle suddenly, engine throttle closes immediately promptly, but the booster still keeps original high-speed running state, when causing this internal gas pressure of pipeline to continuously increase, if this internal gas pressure of pipeline is greater than a pressure default, can carry out the pressure release through the gas safety valve to this internal gas of pipeline, thereby make and to control this internal gas pressure's of pipeline maximum value through the gas safety valve, thereby reduce the pressure difference value at gas relief valve air inlet and gas outlet both ends. Like this, this internal gas pressure of pipeline is less than this pressure default, when carrying out the pressure release through this internal gas of gas relief valve geminate transistors pipeline for the noise that the pressure release caused is less or can not produce the pressure release noise, has solved current booster-type engine and when the throttle was closed, produced great disappointing noise, thereby reduces the problem of the NVH performance of car, has increased the NVH performance of car.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An engine pressure relief circuit, comprising: the gas pressure relief valve and the gas safety valve are mounted on the pipeline body, the first end of the pipeline body is connected with an engine throttle valve, and the second end of the pipeline body is connected with the supercharger through an intercooler; wherein,
when the gas pressure in the pipeline body is greater than a preset pressure value, the gas safety valve releases the pressure of the gas in the pipeline body; and when the gas pressure in the pipeline body is smaller than the preset pressure value, the gas pressure relief valve relieves the pressure of the gas in the pipeline body.
2. The engine pressure relief pipeline according to claim 1, wherein a first mounting opening is provided on the pipeline body, an air inlet of the gas pressure relief valve is mounted on the first mounting opening, and an air outlet of the gas pressure relief valve is communicated with an engine air filter.
3. The engine pressure relief pipeline according to claim 1, wherein a second mounting port is provided on said pipeline body, an air inlet of said gas safety valve is mounted on said second mounting port, and an air outlet of said gas safety valve is communicated with the atmosphere.
4. The engine pressure relief circuit of claim 1, wherein said circuit body has a wall thickness in the range of 1.8mm to 2.2 mm.
5. The engine pressure relief pipeline of claim 1 wherein said pipeline body is a hard plastic pipeline.
6. An engine comprising an engine throttle and an engine pressure relief circuit according to any of claims 1 to 5, wherein the first end of the circuit body of the engine pressure relief circuit is connected to the engine throttle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113356.7U CN206092165U (en) | 2016-10-11 | 2016-10-11 | Engine pressure release pipeline and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113356.7U CN206092165U (en) | 2016-10-11 | 2016-10-11 | Engine pressure release pipeline and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092165U true CN206092165U (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113356.7U Active CN206092165U (en) | 2016-10-11 | 2016-10-11 | Engine pressure release pipeline and engine |
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| CN (1) | CN206092165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420235A (en) * | 2017-08-31 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | Petrol engine air admission manifold tempering protection device |
| CN109578652A (en) * | 2017-09-28 | 2019-04-05 | 长城汽车股份有限公司 | Gas bleeder valve and engine pipelines assembly |
-
2016
- 2016-10-11 CN CN201621113356.7U patent/CN206092165U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420235A (en) * | 2017-08-31 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | Petrol engine air admission manifold tempering protection device |
| CN109578652A (en) * | 2017-09-28 | 2019-04-05 | 长城汽车股份有限公司 | Gas bleeder valve and engine pipelines assembly |
| CN109578652B (en) * | 2017-09-28 | 2020-11-03 | 长城汽车股份有限公司 | Air release valve and engine pipeline assembly |
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