CN109578652B - Air release valve and engine pipeline assembly - Google Patents
Air release valve and engine pipeline assembly Download PDFInfo
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- CN109578652B CN109578652B CN201710900430.2A CN201710900430A CN109578652B CN 109578652 B CN109578652 B CN 109578652B CN 201710900430 A CN201710900430 A CN 201710900430A CN 109578652 B CN109578652 B CN 109578652B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10255—Arrangements of valves; Multi-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10262—Flow guides, obstructions, deflectors or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10295—Damping means, e.g. tranquillising chamber to dampen air oscillations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The invention discloses an air escape valve and an engine pipeline system, wherein the air escape valve comprises a valve body with an air inlet and an air outlet and a valve core arranged in the valve body and used for plugging the air inlet, and a flow guide structure used for guiding airflow so as to prevent the airflow flowing from the air inlet to the air outlet from forming vortex to generate whistle is arranged in an internal cavity of a pressure release valve communicated with the air inlet and the air outlet. When the air escape valve provided by the invention is opened, the phenomenon that the entering high-speed airflow forms vortex to generate whistle can be avoided.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an air escape valve and an engine pipeline assembly.
Background
In the prior art, in an engine intake pipeline system of a vehicle, an air escape valve is usually arranged at an air outlet pipe of an intercooler. When the vehicle normally runs, the engine works, air enters the air filter through the air inlet, enters the intercooler air inlet pipe after being pressurized by the supercharger, then enters the intercooler air outlet pipe after being cooled by the intercooler, and then enters the engine through the throttle valve. When the vehicle is suddenly decelerated and braked, the throttle valve is closed, the pressure of the pipeline of the intercooling system is sharply increased, the air escape valve is opened at the moment, high-pressure gas is released into the air outlet pipe of the air filter through the air escape valve so as to prevent the high-pressure gas from damaging the impeller of the supercharger, namely, the air escape valve is opened, and the air flow passes through the air outlet pipe of the intercooler and the air escape valve and then enters the air outlet pipe of the air filter.
However, when the air release valve is opened, the high-speed airflow rapidly flows out from the gap opened by the valve, directly blows the air outlet of the air release valve, and forms a large amount of vortex in the air outlet pipe, so that vortex whistle sound is generated (the principle of the vortex whistle sound is basically the same as that of a whistle blowing principle), and the NVH performance of the whole vehicle can be seriously affected.
Disclosure of Invention
In view of the above, the present invention is directed to a gas release valve, so as to solve the problem of the prior art that a whistle is generated due to the formation of a vortex when the gas release valve releases gas.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides an air release valve which comprises a valve body with an air inlet and an air outlet and a valve core arranged in the valve body and used for plugging the air inlet, wherein a flow guide structure used for guiding airflow so as to prevent the airflow flowing from the air inlet to the air outlet from forming vortex to generate whistle sound is arranged in an internal cavity of the air release valve communicated with the air inlet and the air outlet.
Furthermore, the air inlet with the gas outlet angulation sets up, the water conservancy diversion structure includes first water conservancy diversion spare, first water conservancy diversion spare sets up gas outlet department and follow extend in order to block on the edge of air inlet the air current of air inlet directly gets into the gas outlet.
Furthermore, the flow guide structure further comprises a second flow guide piece which is arranged on the inner wall surface of the inner cavity and is opposite to the first flow guide piece in position, and the second flow guide piece is arranged to be capable of guiding the air to flow in the direction opposite to the flow direction of the air inlet.
Further, the first flow guide part is a sector plate which extends along the circumferential axial direction of the air inlet and expands radially outwards; and/or the presence of a gas in the gas,
the second flow guide piece is a sector plate which extends along the circumferential direction of the inner wall surface of the inner cavity far away from the air inlet and inclines inwards in the radial direction, wherein the inner cavity is of a circular structure.
Further, the flow guide structure further includes a guide member for guiding the air flow to the air outlet.
Further, the guide component comprises a first spiral part and a second spiral part which are oppositely arranged on the inner wall surface of the inner cavity, and the first spiral part and the second spiral part are arranged on one side of the second flow guide piece, which is far away from the air inlet, and spirally extend towards the air outlet respectively; and/or the presence of a gas in the gas,
the guide part comprises a third spiral part and a fourth spiral part which are arranged on the inner wall surface of the inner cavity and are arranged on one side, close to the air inlet, of the second flow guide part, wherein the third spiral part extends spirally from a position close to the second flow guide part towards a flow direction away from the air inlet and towards the air outlet, and the fourth spiral part extends spirally from one end, close to the third spiral part, far away from the second flow guide part towards the air outlet; the guide member further includes a fifth spiral portion disposed opposite the third spiral portion and a sixth spiral portion opposite the fourth spiral portion.
Furthermore, a cylindrical part extending into the inner cavity is formed at the air inlet, a sealing structure which is in fit contact with the valve core is fixed on the cylindrical part, and the sealing structure is in a cylindrical structure in threaded connection with the inner wall of the cylindrical part.
Furthermore, a pipe joint is arranged on the wall of the air outlet pipe at the air outlet.
Further, the inside of the air outlet pipe at the air outlet is formed into a conical structure, and the cross section of the conical structure is gradually reduced along the direction far away from the valve core.
When the valve core is opened, the air flow entering from the air inlet can be guided to flow through the flow guide structure, so that the air flow smoothly enters the pipeline of the air outlet, the generation of vortex is avoided or reduced, and the phenomenon of vortex whistle can be avoided.
The invention also provides an engine pipeline assembly which comprises an intercooler air outlet pipe, an air filter air outlet pipe, a crankcase ventilation pipe and the air escape valve, wherein the air inlet of the air escape valve is communicated with the intercooler air outlet pipe, the air outlet of the air escape valve is communicated with the air filter air outlet pipe, and the pipe joint is communicated with the crankcase ventilation pipe.
Compared with the prior art, the engine pipeline system has the same advantages with the air release valve, and the detailed description is omitted.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a bleed valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of the bleed valve in partial cutaway configuration;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic illustration of the gas flow in the configuration of FIG. 3 with the valve cartridge in the open state;
FIG. 5 is a top view of the valve seat;
FIG. 6 is a cross-sectional view of the valve seat of FIG. 5 from A-A;
FIG. 7 is a schematic view of FIG. 6 with portions of the structure at the inlet removed to show the flow directing structure for clarity;
FIG. 8 shows the structural arrangement of the spiral portion on the side opposite to FIG. 7;
FIG. 9 shows the structure of the first baffle taken along line B-B of FIG. 5;
fig. 10 shows the structure of the second guide member when cut from C-C of fig. 5.
Description of reference numerals:
1-a valve body; 11-a valve seat; 111-a first helix; 112-a second helix; 113-a third helix; 114-a fourth helix; 115-fifth helix; 116-a sixth helix; 117-first flow guide; 118-a second baffle; 119-a cylindrical portion; 12-an upper valve body; 13-a pipe joint; 14-a seal; 3-an air inlet; 4-air outlet.
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships in practical applications, which are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention.
The invention provides an air release valve, as shown in fig. 1 and 2, the air release valve comprises a valve body 1 with an air inlet 3 and an air outlet 4 and a valve core 2 arranged in the valve body 1 and used for blocking the air inlet 3, wherein a flow guide structure used for guiding air flow so as to prevent the air flow flowing from the air inlet 3 to the air outlet 4 from forming vortex to generate whistle sound is arranged in an internal cavity of the air release valve communicated with the air inlet 3 and the air outlet 4.
When the valve core is opened, the air flow entering from the air inlet 3 can be guided to flow through the flow guide structure, so that the air flow smoothly enters a pipeline of the air outlet 4, and the generation of vortex is avoided or reduced. Therefore, according to the technical scheme provided by the invention, the phenomenon that when the valve core is opened, the high-speed airflow of the air inlet 3 directly blows the air outlet, and eddy current is formed in the pipeline at the air outlet, so that eddy current whistle is generated is avoided.
The technical scheme provided by the invention is explained in detail according to the specific implementation mode by combining the attached drawings.
As shown in fig. 2 to 4, in the present embodiment, the valve body 1 includes a valve seat 11 and an upper valve body 12 fixedly connected to the valve seat 11, wherein the air inlet 3 and the air outlet 4 and the internal air are provided on the valve seat 11.
In the present embodiment, the air inlet 3 and the air outlet 4 are disposed at an angle, and generally, the air inlet 3 and the air outlet 4 are disposed at a right angle. The valve core 2 can move along the axial direction of the air inlet 3, so that the air inlet 3 can be opened or closed, and the air release valve is in a pressure relief state or a stop state.
In this embodiment, the flow guiding structure between the air inlet 3 and the air outlet 4 includes a first flow guiding member 117, and the first flow guiding member 117 is disposed at the air outlet 4 and extends from the edge of the air inlet 3 to prevent the air flow of the air inlet 3 from directly entering the air outlet 4. When the valve core 2 of the air release valve is opened, the air flow of the air inlet 3 is guided by the first flow guide 117 to blow upwards (as shown in the direction of fig. 4), and the air flow is prevented from blowing straight to the air outlet 4 to form vortex whistle.
Preferably, the first baffle 117 is constructed as shown in fig. 5 to 7 and 9, and the first baffle 117 is a sector plate extending axially along the circumference of the intake port 3 and expanding radially outward.
The flow guiding structure further includes a second flow guiding member 118 disposed on the inner wall surface of the inner cavity and opposite to the first flow guiding member 117, and the second flow guiding member 118 is configured to guide the air flowing in the direction opposite to the flow direction of the air inlet 3, that is, the air flow hitting the second flow guiding member 118 can be guided to flow downward (in the direction of fig. 4).
Preferably, the second flow guide 118 is configured as shown in fig. 5-7 and 10, and the second flow guide 118 is a sector plate extending along the inner wall surface of the inner cavity in a circumferential direction away from the air inlet 3 and inclined radially inward, wherein the inner cavity is of a circular configuration.
In order to prevent the air flow from colliding with the inner wall surface of the internal cavity to generate the secondary vortex whistle, the flow guide structure further includes a guide member for guiding the flow of the air flow above and below, thereby smoothly guiding the air flow to the air outlet 4.
Preferably, the guide member includes a first spiral part 111 and a second spiral part 112 oppositely disposed on an inner wall surface of the inner cavity (i.e., the first spiral part 111 and the second spiral part 112 are disposed on opposite sides, respectively, and more preferably, the first spiral part 111 and the second spiral part 112 are symmetrically disposed), and the first spiral part 111 and the second spiral part 112 are disposed on a side of the second flow guide 118 away from the air inlet 3 (i.e., a position of the first spiral part 111 and the second spiral part 112 above the second flow guide 118, as shown in the drawing), and extend spirally toward the air outlet 4, respectively. The air flow above can be guided smoothly into the air outlet 4 by the first and second spiral portions 111 and 112.
The guide member further includes a third spiral part 113 and a fourth spiral part 114 disposed on the inner wall surface of the inner cavity, the third spiral part 113 and the fourth spiral part 114 are disposed on one side of the second flow guide 118 close to the air inlet 3 (i.e., as shown in the figure, the third spiral part 113 and the fourth spiral part 114 are disposed below the second flow guide 118), wherein the third spiral part 113 extends spirally from a position close to the second flow guide 118 toward a direction away from the flow direction of the air inlet 3 and toward the air outlet 4, and the fourth spiral part 114 extends spirally from an end close to the third spiral part 113 away from the second flow guide 118 toward the air outlet 4.
The guide member further includes a fifth spiral part 115 disposed opposite to the third spiral part 113 and a sixth spiral part 116 opposite to the fourth spiral part 114.
When the air release valve is opened, the air flow enters from the air inlet 3 of the air release valve, then part of the air flow is blown upwards under the guide of the first guide element 117, the air flow is prevented from blowing the air outlet 4 of the air release valve directly, the air release vortex whistle is prevented from being generated, the air flow is guided to flow downwards by the second guide element 118 opposite to the air outlet 4 due to the large air flow generated by air release, the air flow guided to the lower part of the air release valve is dispersed, the air flow on the lower part smoothly flows to the bottom along the third spiral part 113 and the fifth spiral part 115, and then flows upwards to the air outlet 4 along the fourth spiral part 114 and the sixth spiral part 116. The air flow can be prevented from colliding with the peripheral wall surface of the air escape valve to generate vortex whistle for the second time. Meanwhile, the air flow introduced above the air release valve is dispersed and then smoothly flows to the air outlet 4 along the first spiral part 111 and the second spiral part 112, so that the air flow is prevented from colliding with the peripheral wall surface of the air release valve to generate vortex whistle secondarily.
In the present embodiment, the arrangement of the first spiral part 111, the third spiral part 113, and the fourth spiral part 114 is as shown in fig. 7, and the arrangement of the second spiral part 112, the fifth spiral part 115, and the sixth spiral part 116 is as shown in fig. 8, where the first spiral part 111, the third spiral part 113, and the fourth spiral part 114 are substantially symmetrical to the second spiral part 112, the fifth spiral part 115, and the sixth spiral part 116. Of course, each may be disposed asymmetrically, for example, the first spiral part 111 and the second spiral part 112 may be disposed vertically, as long as the upper air flow can be smoothly guided to the air outlet 4. The structure of each spiral part can be a spirally extending sheet-shaped structure, and also can be a triangular structure or other structural forms.
In addition, it will be understood by those skilled in the art that the flow guide structure for guiding the airflow is not limited to the structure including the first flow guide 117, the second flow guide 118 and the spiral components in the present embodiment, and other structures capable of guiding the airflow smoothly may be adopted.
In the present embodiment, a cylindrical portion 119 extending into the internal cavity is formed at the intake port 3, a seal structure 14 for engaging with the valve element 2 is fixed to the cylindrical portion 119, and the valve body 1 is generally formed by injection molding, and cannot be engaged with the valve element with precision to form a seal, so that the seal structure 14 is fixed to the cylindrical portion 119, and preferably, the seal structure 14 has a cylindrical structure screwed to an inner wall of the cylindrical portion 119. It should be understood that the cylindrical portion 119 is not required and the cylindrical portion 119 may not be provided, where the cylindrical portion 119 is provided to more conveniently secure the seal structure 14.
In the present embodiment, a pipe joint 13 is provided on the wall of the outlet pipe at the outlet 4.
As shown in fig. 5 and 6, the inside of the outlet pipe at the outlet port 4 is formed in a tapered structure whose cross section is gradually reduced in a direction away from the valve element, and a pipe joint 13 is provided on the wall of the tapered structure inside.
The bleed valve in this embodiment is designed for application to the intake pipe system of an engine. When the air-conditioning device is applied to the pipeline connection of an engine, one end with an air inlet 3 is connected with an intercooler air outlet pipe of the engine, and the other end with an air outlet 4 is connected with an air outlet pipe of an air filter. A pipe connection 13 is provided here for connecting the crankcase ventilation line of the engine. The liquid oil in the crankcase system can flow into the air escape valve through a crankcase ventilation pipe and is limited by the conical structure of the pipeline at the air outlet 4, and the oil can not flow into the air outlet pipe of the air filter and can slowly accumulate in the inner cavity of the valve seat of the air escape valve along the conical structure. Therefore, at the moment when the air release valve is opened, high-pressure gas flows out from a gap between the valve core and the valve seat, accumulated oil is scattered into oil mist by the high-pressure gas, and the oil mist enters the air outlet pipe of the internal cavity filter along with the gas. Thus, the oil leakage phenomenon caused by the accumulation of oil drops can be avoided.
According to another aspect of the present invention, there is also provided an engine pipe assembly comprising an intercooler air outlet pipe, an air cleaner air outlet pipe, a crankcase ventilation pipe, and the air release valve as described above, wherein the air inlet 3 of the air release valve is communicated with the intercooler air outlet pipe, the air outlet 4 is communicated with the air cleaner air outlet pipe, and the pipe joint 13 is communicated with the crankcase ventilation pipe.
When the vehicle is suddenly decelerated and braked, the throttle valve of the engine is closed, the pressure of the pipeline of the intercooling system is sharply increased, in order to prevent the impeller of the supercharger from being damaged by the high pressure in the intercooling system, the air release valve is opened, and the high-speed airflow is released into the air outlet pipe of the air filter through the gap opened by the air release valve. When the air release valve is opened, the air flow in the air outlet pipe of the intercooler enters from the air inlet 3 of the air release valve, and then part of the air flow is blown upwards under the flow guidance of the first flow guide piece 117, so that the air flow is prevented from directly blowing the air outlet 4 of the air release valve; and the air flow impinging on the second baffle 118 will be directed to flow downwardly; the air flow guided to the upper side then flows to the air outlet 4 along the first spiral part 111 and the second spiral part 112, and the air flow guided to the lower side flows to the bottom along the third spiral part 113 and the fifth spiral part 115, and then flows upward to the air outlet 4 along the fourth spiral part 114 and the sixth spiral part 116.
According to the air escape valve provided by the invention, through CFD simulation analysis of a patent product, the air escape valve basically has no vortex at the air outlet 4, the air flow state is stable, and the vortex noise can be effectively eliminated. Therefore, when the air release valve is applied to an engine pipeline system, the NVH performance of a vehicle can be effectively improved.
In addition, the air release valve provided by the application integrates a pipe joint 13, and a crankcase ventilation pipe can be connected through the pipe joint 13. The oil gas in the crankcase of the engine is mainly the blow-by gas generated by gas combustion in the cylinder of the engine and generated by a lubricating piston of an oil lubricating system, the oil gas can enter the air release valve through a crankcase ventilation pipeline, because of the limitation of the wedge-shaped structure of the pipeline connected with the pipe joint 13, the liquid oil in the crankcase ventilation system can not flow into the air outlet pipe of the air filter but slowly accumulates in the inner cavity at the bottom of the air release valve, and at the moment when the air release valve is opened, the high-speed gas can blow the liquid oil to break the liquid oil into oil mist. Then, the oil mist flows under the guidance of the first flow guiding element 117 and the second flow guiding element 118, and finally flows to the air outlet 4 along each spiral part, wherein when the second flow guiding element 118 guides the air flow to flow downwards, the air flow blows the oil at the bottom of the air release valve, so that the oil at the bottom of the air release valve is blown out of the bottom of the air release valve. Therefore, liquid oil at the bottom of the air escape valve is better scattered into oil mist and then blown into the air filter air outlet pipe, so that the oil in the air inlet system and the oil in the intercooling system are both in a gas state, oil drops are not accumulated, the oil leakage phenomenon of the air inlet system and the intercooling system can be avoided, and the driving safety of the whole vehicle is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The air release valve comprises a valve body (1) with an air inlet (3) and an air outlet (4) and a valve core (2) arranged in the valve body (1) and used for blocking the air inlet (3), and is characterized in that a flow guide structure used for guiding airflow to prevent the airflow flowing from the air inlet (3) to the air outlet (4) from forming vortex to generate whistle sound is arranged in an inner cavity of the air release valve communicated with the air inlet (3) and the air outlet (4); the air inlet (3) and the air outlet (4) are arranged at an angle, the flow guide structure comprises a first flow guide piece (117), the first flow guide piece (117) is arranged at the air outlet (4) and extends from the edge of the air inlet (3) to block the airflow of the air inlet (3) to directly enter the air outlet (4).
2. The leak valve according to claim 1, wherein said flow guide structure further comprises a second flow guide member (118) provided on an inner wall surface of said internal cavity and opposed to said first flow guide member (117), said second flow guide member (118) being provided so as to be capable of guiding a flow of air in a direction opposite to a flow of said air inlet (3).
3. The leak-escape valve as claimed in claim 2 characterized in that said first deflector (117) is a sector plate extending axially along the circumference of said air inlet (3) and flaring radially; and/or the presence of a gas in the gas,
the second flow guide piece (118) is a sector plate which extends along the circumferential direction of the inner wall surface of the inner cavity far away from the air inlet (3) and inclines inwards in the radial direction, wherein the inner cavity is of a circular structure.
4. The gas escape valve according to claim 2 characterized in that said flow directing structure further comprises a guide member for guiding the gas flow to said gas outlet (4).
5. The gas escape valve according to claim 4, characterized in that the guide member comprises a first spiral portion (111) and a second spiral portion (112) oppositely disposed on the inner wall surface of the internal cavity, the first spiral portion (111) and the second spiral portion (112) are disposed on the side of the second flow guide member (118) away from the gas inlet (3) and spirally extend toward the gas outlet (4), respectively; and/or the presence of a gas in the gas,
the guide part comprises a third spiral part (113) and a fourth spiral part (114) which are arranged on the inner wall surface of the inner cavity, the third spiral part (113) and the fourth spiral part (114) are arranged on one side, close to the air inlet (3), of the second flow guide part (118), wherein the third spiral part (113) extends spirally from a position close to the second flow guide part (118) towards a direction away from the flowing direction of the air inlet (3) and towards the air outlet (4), and the fourth spiral part (114) extends spirally towards the air outlet (4) from one end, far away from the second flow guide part (118), close to the third spiral part (113);
the guide member further includes a fifth spiral portion (115) disposed opposite the third spiral portion (113) and a sixth spiral portion (116) opposite the fourth spiral portion (114).
6. The air release valve according to claim 1, wherein a cylindrical part (119) extending into the inner cavity is formed at the air inlet (3), a sealing structure (14) for being in fit contact with the valve core (2) is fixed on the cylindrical part (119), and the sealing structure (14) is a cylindrical structure in threaded connection with the inner wall of the cylindrical part (119).
7. The air release valve according to any of claims 1 to 6, wherein a pipe joint (13) is provided on the wall of the outlet pipe at the outlet (4).
8. The leak valve according to claim 7, characterized in that the interior of said outlet pipe at said outlet port (4) is formed as a tapered structure having a cross section gradually decreasing in a direction away from said core.
9. An engine pipe assembly, characterized in that, the engine pipe assembly includes intercooler outlet duct, air cleaner outlet duct, crankcase ventilation pipe and the run-flat valve of claim 7 or 8, wherein, the air inlet (3) of the run-flat valve with the intercooler outlet duct intercommunication, gas outlet (4) with the air cleaner outlet duct intercommunication, coupling (13) with the crankcase ventilation pipe intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900430.2A CN109578652B (en) | 2017-09-28 | 2017-09-28 | Air release valve and engine pipeline assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900430.2A CN109578652B (en) | 2017-09-28 | 2017-09-28 | Air release valve and engine pipeline assembly |
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| Publication Number | Publication Date |
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| CN109578652A CN109578652A (en) | 2019-04-05 |
| CN109578652B true CN109578652B (en) | 2020-11-03 |
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| CN201710900430.2A Active CN109578652B (en) | 2017-09-28 | 2017-09-28 | Air release valve and engine pipeline assembly |
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| US7743756B2 (en) * | 2008-09-12 | 2010-06-29 | Ford Global Technologies | Air inlet system for an internal combustion engine |
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| CN109578652A (en) | 2019-04-05 |
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