CN221442705U - Supercharger, carbon canister purge system and vehicle - Google Patents
Supercharger, carbon canister purge system and vehicle Download PDFInfo
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- CN221442705U CN221442705U CN202322995600.3U CN202322995600U CN221442705U CN 221442705 U CN221442705 U CN 221442705U CN 202322995600 U CN202322995600 U CN 202322995600U CN 221442705 U CN221442705 U CN 221442705U
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Abstract
本申请公开了一种增压器、碳罐脱附系统和车辆，增压器包括压气机，所述压气机包括压气腔、压轮、压气进气管和压气出气管，所述压轮安装在所述压气腔中，所述压气进气管和所述压气出气管均与所述压气腔连通；所述压气机进气管的侧壁连接有用于连接燃油蒸汽管的外接口，所述外接口与所述压气机进气管连通。通过在增压器的压气进气管上设置外接口用于连接燃油蒸汽管，在发动机处于正压工况下，利用增压器的压气进气管的负压，将碳罐的燃油蒸汽从外接口吸附到增压器中进行增压后从压气出气管输送至进气歧管，既提高了正压真空度，也不会造成泵气损失，管路连接也较为简单。
The present application discloses a supercharger, a carbon canister desorption system and a vehicle. The supercharger includes a compressor, the compressor includes a compressed air chamber, a compression wheel, a compressed air inlet pipe and a compressed air outlet pipe, the compression wheel is installed in the compressed air chamber, the compressed air inlet pipe and the compressed air outlet pipe are both connected to the compressed air chamber; the side wall of the compressor inlet pipe is connected with an external interface for connecting a fuel vapor pipe, and the external interface is connected to the compressor inlet pipe. By arranging an external interface on the compressed air inlet pipe of the supercharger for connecting the fuel vapor pipe, when the engine is in a positive pressure condition, the negative pressure of the compressed air inlet pipe of the supercharger is used to adsorb the fuel vapor of the carbon canister from the external interface into the supercharger for supercharging, and then transport it from the compressed air outlet pipe to the intake manifold, which not only improves the positive pressure vacuum, but also does not cause pump air loss, and the pipeline connection is also relatively simple.
Description
Technical Field
The application relates to the technical field of carbon tank desorption, in particular to a supercharger, a carbon tank desorption system and a vehicle.
Background
Along with the stricter and stricter emission regulations of engines, the desorption capability of fuel oil vehicles to fuel oil steam is required to be stronger, and in order to improve the carbon tank desorption capability, the vacuum degree of the interface end of a carbon tank desorption pipe is required to be improved as much as possible, the vacuum degree of the inlet manifold end of a general booster type is mainly influenced by the load of the engine, the vacuum degree of the air filtering rear end is limited, and the vacuum degree is required to be improved by some means.
In order to improve the vacuum degree during positive pressure desorption, the method widely adopted by each host factory is to add a venturi tube between a carbon tank and an air inlet of a supercharger, take high-pressure air from a pipeline after the supercharger is pressed to serve as venturi driving air flow, and generate larger vacuum degree through venturi effect, so that the requirement of high desorption performance is met. However, this method requires a portion of the high-pressure air flow, which is drawn from the supercharger as venturi-driven air flow, to flow into the intake end of the supercharger after being venturi-shaped, resulting in a decrease in air pressure supplied to the engine, so that the engine has to raise the boost pressure to compensate for the intake demand, resulting in an increase in pumping loss.
Disclosure of Invention
The application aims to overcome the defects of pumping loss and complex structure caused by improving positive pressure vacuum degree by adopting Venturi effect in the prior art, and provides a supercharger, a carbon tank desorption system and a vehicle which are low in cost, simple in structure and capable of improving the positive pressure vacuum degree.
The technical scheme of the application provides a supercharger, which comprises a compressor, wherein the compressor comprises a compressed air cavity, a pressing wheel, a compressed air inlet pipe and a compressed air outlet pipe, the pressing wheel is arranged in the compressed air cavity, and the compressed air inlet pipe and the compressed air outlet pipe are both communicated with the compressed air cavity;
The side wall of the compressed air inlet pipe is connected with an external interface for connecting a fuel steam pipe, and the external interface is communicated with the compressed air inlet pipe.
Further, the axis of the outer interface is perpendicular to the axis of the compressed air inlet pipe.
Further, the vertical distance between the axis of the outer interface and the pinch roller is more than 0mm and less than or equal to 30mm.
The technical scheme of the application also provides a carbon tank desorption system which comprises an air inlet manifold, a carbon tank, a positive pressure one-way valve and a supercharger, wherein the supercharger is the supercharger;
The air inlet end of the air inlet manifold is connected with the air compressing outlet pipe, the air inlet end of the positive pressure one-way valve is connected with the outlet of the carbon tank, and the air outlet end of the positive pressure one-way valve is connected with the external interface through a fuel steam pipe.
Further, the vacuum air inlet device further comprises a negative pressure one-way valve, the air inlet end of the negative pressure one-way valve is connected with the outlet of the carbon tank, and the air outlet end of the negative pressure one-way valve is connected with the air inlet end of the air inlet manifold.
Further, the air inlet manifold further comprises a throttle valve, the throttle valve is connected to the air inlet end of the air inlet manifold, and the compressed air outlet pipe and the air outlet end of the negative pressure one-way valve are both connected with the throttle valve.
Further, the device also comprises a carbon tank electromagnetic valve, wherein the carbon tank electromagnetic valve is connected to an outlet of the carbon tank, and the positive pressure one-way valve and the negative pressure one-way valve are connected with the carbon tank through the carbon tank electromagnetic valve.
Further, the air filter is connected with the compressed air inlet pipe.
Further, the air filter further comprises a back pressure valve, and the back pressure valve is connected between the air filter and the compressed air inlet pipe.
The technical scheme of the application also provides a vehicle which comprises the supercharger and/or the carbon tank desorption system.
After the technical scheme is adopted, the method has the following beneficial effects:
According to the application, the external interface is arranged on the compressed air inlet pipe of the supercharger and is used for connecting the fuel steam pipe, when the engine is in a positive pressure working condition, the negative pressure of the compressed air inlet pipe of the supercharger is utilized, the fuel steam of the carbon tank is adsorbed into the supercharger from the external interface and is conveyed to the air inlet manifold from the compressed air outlet pipe after being pressurized, so that the positive pressure vacuum degree is improved, pumping loss is avoided, and the pipeline connection is simpler.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic diagram of a supercharger medium pressure air machine according to an embodiment of the present application;
fig. 2 is a schematic diagram of a canister desorption system according to an embodiment of the application.
Reference numeral control table:
an intake manifold 1, a carbon tank 2 and a positive pressure one-way valve 3;
supercharger 4: the device comprises a compressed air cavity 01, a pressure wheel 02, a compressed air inlet pipe 03, a compressed air outlet pipe 04, an external interface 05 and a sealing ring 51;
an engine 5, a negative pressure one-way valve 6, a throttle valve 7, a carbon tank electromagnetic valve 8, an air filter 9 and a back pressure valve 10.
Detailed Description
Specific embodiments of the present application will be further described below with reference to the accompanying drawings.
It is to be readily understood that, according to the technical solutions of the present application, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the application and are not intended to limit or restrict the application in its entirety or to apply for the application.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The above-described specific meanings belonging to the present application are understood as appropriate by those of ordinary skill in the art.
A supercharger:
The supercharger in the embodiment of the application comprises a compressor, as shown in fig. 1, wherein the compressor comprises a compressed air cavity 01, a pinch roller 02, a compressed air inlet pipe 03 and a compressed air outlet pipe 04, the pinch roller 02 is arranged in the compressed air cavity 01, and the compressed air inlet pipe 03 and the compressed air outlet pipe 04 are communicated with the compressed air cavity 01;
The side wall of the compressed air inlet pipe 03 is connected with an external interface 05 for connecting a fuel steam pipe, and the external interface 05 is communicated with the compressed air inlet pipe 03.
The supercharger of the embodiment of the application is an engine air inlet supercharger, and can be an exhaust gas turbocharger, a mechanical turbocharger or an electric auxiliary turbocharger. The supercharger is used for compressing intake air and improving the intake air density and the intake air amount of the engine, thereby improving the power of the engine.
The air inlet is pressurized by the air compressor in the supercharger, the air inlet enters the air compression cavity 01 from the air compression inlet pipe 03, and the pressurized air is output to the engine from the air compression outlet pipe 04 after the pressure wheel 02 acts to pressurize the air.
In the embodiment of the application, the outer port 05 is arranged on the side wall of the compressed air inlet pipe 03, and the outer port 05 extends out from the side wall of the compressed air inlet pipe 03. The external interface 05 is used for being externally connected with a fuel steam pipe, one end of the fuel steam pipe is connected with the external interface 05, and the other end of the fuel steam pipe is connected with a fuel steam output port, such as an output port of a carbon tank for adsorbing fuel steam; the fuel vapor is input into the air compressing intake pipe 03 through a fuel vapor pipe. When the pinch roller 02 acts, as the air of the compressed air inlet pipe 03 is extracted to the compressed air cavity 01, the air pressure at the compressed air inlet pipe 03 is smaller due to the faster flow speed of the air, and under the action of negative pressure, the fuel steam can be sucked through the external interface 05 to enter the compressed air cavity 01.
Preferably, the outer peripheral wall of the outer port 05 can be further provided with a raised sealing ring 51, the fuel steam pipe can be a PE fuel gas pipe, the fuel gas steam pipe is sleeved on the outer port 05, and then a sealing flange ring is installed for sealing. When the fuel steam pipe is externally connected, the friction force between the outer peripheral wall of the outer interface 05 and the inner peripheral wall of the fuel steam pipe can be improved by the arrangement of the sealing ring 51, and the connection tightness of the fuel steam pipe and the outer interface 05 is improved.
In one embodiment, the axis of the external interface 05 is perpendicular to the axis of the compressed air inlet pipe 03, and compared with the external interface 05 which is obliquely arranged, the fuel steam pipe is not convenient to apply force in an oblique direction, and the fuel steam pipe can possibly press the outer wall of the air cavity 01 to interfere.
In the compressed air inlet pipe 03, the closer to the pinch roller 02, the greater the flow velocity of air and the greater the negative pressure, so that the vertical distance between the axis of the external port 05 and the pinch roller 02 is preferably greater than 0mm and less than or equal to 30mm in order to provide a greater negative pressure to suck the fuel vapor.
The above technical schemes can be combined according to the need to achieve the best technical effect.
Carbon canister desorption system:
The carbon tank desorption system in the embodiment of the application, as shown in fig. 2, comprises an intake manifold 1, a carbon tank 2, a positive pressure one-way valve 3 and a supercharger 4, wherein the supercharger 4 is the supercharger in any of the previous embodiments;
The air inlet end of the air inlet manifold 1 is connected with an air compressing outlet pipe 04, the air inlet end of the positive pressure one-way valve 3 is connected with the outlet of the carbon tank 2, and the air outlet end of the positive pressure one-way valve 3 is connected with an external interface 05 through a fuel steam pipe. When the vehicle is in a positive pressure working condition and the air pressure of the outer port 05 is smaller than the air pressure of the outlet of the carbon tank 2, the positive pressure one-way valve 3 is opened, and fuel vapor is discharged from the outlet of the carbon tank 2 to the outer port 05 through the fuel vapor pipe.
The air outlet end of the air inlet manifold 1 is connected with air inlets of all cylinders of the engine 5, and the air inlet manifold 1 is used for distributing air and fuel mixture to the air inlets of all cylinders through a throttle valve. The inside of the carbon tank is filled with active carbon with strong adsorptivity, redundant fuel steam in the oil tank is introduced into the carbon tank through the pipe, so that the active carbon adsorbs the fuel steam, when the automobile starts, the electromagnetic valve of the active carbon tank is timely opened, and the absorbed fuel steam is discharged into the air inlet manifold again, so that the purposes of saving fuel and protecting environment are achieved.
Under the positive pressure working condition, namely when the vehicle is in a high load state, the air quantity consumed by the engine 5 is large, the booster 4 is required to be started to boost the air, the air enters the booster 4 from the compressed air inlet pipe 03, and the air is boosted by the booster 4 and then is conveyed to the air inlet manifold 1 through the compressed air outlet pipe 04. At this time, the compressed air inlet pipe 04 of the supercharger 4 is in a negative pressure state, under the action of the negative pressure, the positive pressure one-way valve 3 is opened, and the fuel vapor in the carbon tank 2 is sucked into the compressed air cavity 01 through the positive pressure one-way valve 3 and the external interface 05, so that the reutilization of the fuel vapor is realized, and the effects of energy conservation and emission reduction are achieved.
In the embodiment of the application, the negative pressure at the air compressing inlet pipe 03 of the supercharger 4 under the positive pressure working condition is utilized to realize the absorption of fuel steam, compared with the scheme of utilizing the Venturi effect in the prior art, the application has the advantages of no pumping loss, simpler pipeline structure, low cost and less occupied installation space.
In one embodiment, the carbon canister desorption system further comprises a negative pressure check valve 6, wherein the air inlet end of the negative pressure check valve 6 is connected with the outlet of the carbon canister 2, and the air outlet end of the negative pressure check valve 6 is connected with the air inlet end of the air inlet manifold 1.
Specifically, when the vehicle is in a low load state such as idling, the amount of air required for the engine 5 is small, and at this time, the air pressure of the intake manifold 1 is smaller than the air pressure of the air outlet end of the canister 2, and the vehicle is in a negative pressure state. At this time, the negative pressure check valve 6 is opened, and the fuel vapor in the carbon tank 2 is sucked into the intake manifold 1 through the negative pressure check valve 6, so that the fuel vapor can be reused.
In one embodiment, the carbon tank desorption system further comprises a throttle valve 7, the throttle valve 7 is connected to the air inlet end of the air inlet manifold 1, and the compressed air outlet pipe 04 and the air outlet end of the negative pressure one-way valve 6 are connected to the throttle valve 7.
The throttle valve 7 is a controllable valve for controlling air to enter the engine, and when the vehicle is in different working conditions, the opening of the throttle valve 7 is controlled according to the air quantity requirement of the current working condition, so that the air inflow of the engine 5 is regulated. The compressed air outlet pipe 04 and the negative pressure one-way valve 6 are connected with the air inlet manifold 1 through a throttle valve 7, and air and fuel steam adsorbed by the carbon tank 2 can be mixed with gasoline to become combustible mixed gas after entering the air inlet manifold 1 through the throttle valve so as to supply combustion work to the engine.
In one embodiment, the canister desorption system further comprises a canister solenoid valve 8, the canister solenoid valve 8 is connected to the outlet of the canister 2, and the positive pressure check valve 3 and the negative pressure check valve 6 are connected to the canister 2 through the canister solenoid valve 8.
The carbon tank electromagnetic valve 8 is connected to the outlet of the carbon tank 2 and is used for controlling the on-off of the fuel steam pipe. When the vehicle starts, the canister solenoid valve 8 is opened, avoiding leakage of fuel vapor.
In one embodiment, the canister desorption system further comprises an air filter 9, wherein the air filter 9 is connected with the compressed air inlet pipe 03.
The air filter 9 is used for filtering air entering the engine to remove dust particles in the air, so that the dust particles are prevented from entering the supercharger 4 and the engine 5 to damage equipment.
In one embodiment, the canister desorption system further comprises a back pressure valve 10, the back pressure valve 10 being connected between the air filter 9 and the compressed air inlet pipe 03.
For partial engine pressure is lower, the negative pressure generated at the compressed air inlet pipe 03 is smaller, and at the moment, the back pressure valve 10 is additionally arranged between the air filter 9 and the compressed air inlet pipe 03, so that the negative pressure in front of the pinch roller can be further improved, and the larger desorption flow requirement of the carbon tank desorption system is met.
Based on the carbon tank desorption system shown in fig. 2, the working principle is as follows:
Under the negative pressure working condition, the negative pressure one-way valve 6 is opened under the action of negative pressure, and fuel vapor is sucked from the carbon tank 2 to the throttle valve 7 to enter the air inlet manifold 1, so that the flow requirement of carbon tank desorption is met.
Under the positive pressure working condition, the negative pressure one-way valve 6 is closed, the supercharger 4 is started to enable the compressed air inlet pipe 03 to generate negative pressure, the positive pressure one-way valve 3 is opened under the action of the negative pressure, fuel steam is sucked into the compressed air inlet pipe 03 from the carbon tank 2 and enters the supercharger 4, and the fuel steam enters the air inlet manifold 1 after being supercharged by the supercharger 4, so that the flow requirement of carbon tank desorption is met.
The above technical schemes can be combined according to the need to achieve the best technical effect.
Vehicle:
The vehicle in an embodiment of the application comprises the supercharger in any of the previous embodiments and/or the canister desorption system in any of the previous embodiments.
What has been described above is merely illustrative of the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, an implementation manner in which the technical solutions disclosed in the different embodiments are appropriately combined is also included in the technical scope of the present application, and several other modifications are possible on the basis of the principle of the present application, which should also be regarded as the protection scope of the present application.
Claims (10)
1. The supercharger is characterized by comprising a compressor, wherein the compressor comprises a compressed air cavity, a pressing wheel, a compressed air inlet pipe and a compressed air outlet pipe, the pressing wheel is arranged in the compressed air cavity, and the compressed air inlet pipe and the compressed air outlet pipe are both communicated with the compressed air cavity;
The side wall of the compressed air inlet pipe is connected with an external interface for connecting a fuel steam pipe, and the external interface is communicated with the compressed air inlet pipe.
2. The supercharger of claim 1 wherein the axis of the outer port is perpendicular to the axis of the compressor inlet tube.
3. The supercharger of claim 2 wherein the axis of the outer interface is at a perpendicular distance from the puck of greater than 0mm and less than or equal to 30mm.
4. A canister desorption system comprising an intake manifold, a canister, a positive pressure check valve, and a supercharger, the supercharger being according to any one of claims 1-3;
The air inlet end of the air inlet manifold is connected with the air compressing outlet pipe, the air inlet end of the positive pressure one-way valve is connected with the outlet of the carbon tank, and the air outlet end of the positive pressure one-way valve is connected with the external interface through a fuel steam pipe.
5. The canister desorption system of claim 4, further comprising a negative pressure check valve, an inlet end of the negative pressure check valve being connected to an outlet of the canister, an outlet end of the negative pressure check valve being connected to an inlet end of the intake manifold.
6. The canister desorption system of claim 5, further comprising a throttle valve coupled to an intake end of the intake manifold, wherein the compressed air outlet tube and an outlet end of the negative pressure check valve are both coupled to the throttle valve.
7. The canister desorption system of claim 5, further comprising a canister solenoid valve connected to an outlet of the canister, wherein the positive pressure check valve and the negative pressure check valve are both connected to the canister through the canister solenoid valve.
8. The canister desorption system of any one of claims 4-7, further comprising an air filter coupled to the compressed air inlet conduit.
9. The canister desorption system of claim 8, further comprising a back pressure valve connected between the air filter and the compressed air inlet tube.
10. A vehicle comprising a supercharger according to any one of claims 1 to 3 and/or a canister desorption system according to any one of claims 4 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995600.3U CN221442705U (en) | 2023-11-07 | 2023-11-07 | Supercharger, carbon canister purge system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995600.3U CN221442705U (en) | 2023-11-07 | 2023-11-07 | Supercharger, carbon canister purge system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221442705U true CN221442705U (en) | 2024-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322995600.3U Active CN221442705U (en) | 2023-11-07 | 2023-11-07 | Supercharger, carbon canister purge system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221442705U (en) |
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2023
- 2023-11-07 CN CN202322995600.3U patent/CN221442705U/en active Active
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