CN220769606U - Liquid level sensor of integrated pump and fuel supply system - Google Patents
Liquid level sensor of integrated pump and fuel supply system Download PDFInfo
- Publication number
- CN220769606U CN220769606U CN202322478528.7U CN202322478528U CN220769606U CN 220769606 U CN220769606 U CN 220769606U CN 202322478528 U CN202322478528 U CN 202322478528U CN 220769606 U CN220769606 U CN 220769606U
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- level sensor
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- oil
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- 239000007788 liquid Substances 0.000 title claims abstract description 186
- 239000000446 fuel Substances 0.000 title claims abstract description 98
- 239000002828 fuel tank Substances 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 108
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a liquid level sensor of an integrated pump and a fuel supply system, wherein the liquid level sensor comprises: the sensor body is provided with a connecting port connected with the first oil tank, a liquid outlet connected with the engine and a liquid inlet connected with the second oil tank; the liquid pump is respectively connected with the connecting port and the liquid inlet and is used for driving the oil of the second oil tank to enter the first oil tank; the first control valve is connected with the liquid pump and the liquid outlet respectively, and the first control valve is used for controlling the liquid pump to be communicated with or disconnected from the liquid outlet, and the liquid pump is used for driving oil of the first oil tank to enter the engine. The liquid level sensor of the integrated pump can improve the fuel utilization rate, has a simple structure, is beneficial to reducing assembly procedures and assembly risks, and reduces production cost.
Description
Technical Field
The utility model relates to the technical field of liquid level sensors, in particular to a liquid level sensor of an integrated pump and a fuel supply system.
Background
Some automobiles are provided with a main oil tank and an auxiliary oil tank, the main oil tank supplies fuel to an engine, the auxiliary oil tank supplements fuel to the main oil tank, the existing method for realizing fuel supply is generally to provide a liquid level sensor, the fuel of the main oil tank is conveyed to the engine by a pump arranged in the liquid level sensor, and the fuel of the auxiliary oil tank is conveyed to the main oil tank by forming negative pressure when the fuel of the main oil tank is reduced, but the fuel utilization rate is low when the fuel supply is realized in such a way, and dead oil which is not supplied to the engine exists in the oil tank; therefore, the oil supply to the engine and the oil replenishment to the main oil tank can be realized respectively by arranging two pumps in the liquid level sensor, but the liquid level sensor provided with the two pumps has a complex structure, a plurality of assembly procedures and high assembly risk, and the increase of the production cost is easy to cause.
Disclosure of Invention
The utility model aims to provide a liquid level sensor of an integrated pump, which can improve the fuel utilization rate and has a simple structure, is beneficial to reducing assembly procedures and assembly risks and reduces production cost.
Another object of the present utility model is to provide a fuel supply system, in which the level sensor of the integrated pump can improve the fuel utilization rate and has a simple structure, which is beneficial to reducing the assembly process and assembly risk and reducing the production cost.
To achieve the above object, the present utility model discloses a liquid level sensor of an integrated pump, comprising: the sensor body is used for detecting the oil level in the first oil tank, the sensor body is provided with a connecting port, a liquid outlet and a liquid inlet, the connecting port is connected with the first oil tank, the liquid outlet is connected with an engine, and the liquid inlet is connected with the second oil tank; the liquid pump is arranged on the sensor body, is respectively connected with the connecting port and the liquid inlet, and is used for driving oil of the second oil tank to enter the first oil tank through the liquid inlet and the connecting port; the first control valve is respectively connected with the liquid pump and the liquid outlet, the first control valve is used for controlling the liquid pump to be communicated with or disconnected from the liquid outlet, and the liquid pump is used for driving oil of the first oil tank to enter the engine through the connecting port and the liquid outlet.
Optionally, the liquid level sensor of the integrated pump further comprises a second control valve, the second control valve is connected with the connection port and the liquid outlet respectively, and the second control valve is used for controlling the connection port to be communicated with or disconnected from the liquid outlet.
Optionally, the liquid pump is a positive and negative rotation electric pump, and when the engine is ignited, the liquid pump rotates positively to drive the oil in the first oil tank to enter the engine through the connection port and the liquid outlet; when the sensor body detects that the oil in the first oil tank is lower than a liquid level threshold, the liquid pump reverses to drive the oil in the second oil tank to enter the first oil tank through the liquid inlet and the connection port.
Optionally, the sensor body includes first casing and second casing, first casing with be connected with first connecting pipe and second connecting pipe between the second casing, first casing is provided with the liquid outlet with the inlet, the second casing is provided with the connector, first connecting pipe with the one end of second connecting pipe with the connector intercommunication, the other end of first connecting pipe with the liquid pump intercommunication, the other end of second connecting pipe with the liquid outlet intercommunication.
Optionally, be provided with mutually perpendicular's first passageway and second passageway in the first casing, the one end of first passageway with the one end intercommunication of second passageway, the other end of first passageway with the liquid pump intercommunication, the other end of second passageway with the liquid outlet intercommunication, first control valve is the solenoid valve, first control valve installs first casing, first control valve includes the control end, the control end is used for opening or closing the port of the one end of first passageway keeping away from the liquid pump makes first passageway with the second passageway intercommunication or disconnection.
Optionally, the second control valve is a one-way valve, the second control valve is installed the second connecting pipe, one end of the second connecting pipe with the second channel communicates, the other end communicates with the connection port, after the engine is started, the second control valve is opened so that the connection port communicates with the liquid outlet.
To achieve the above another object, the present utility model discloses a fuel supply system comprising: a first tank and a second tank, said first tank being provided with a level sensor integrating a pump as described above; the second oil tank is provided with an oil supply liquid level sensor, the input end of the oil supply liquid level sensor is connected with the second oil tank, and the output end of the oil supply liquid level sensor is connected with the liquid inlet.
Optionally, the volume of the first oil tank is smaller than the volume of the second oil tank.
Optionally, the first oil tank is further provided with a filter, an input end of the filter is connected with the liquid outlet, an output end of the filter is connected with the engine, and the filter is used for filtering oil output to the engine.
Optionally, the fuel supply system further comprises a third control valve, the third control valve is respectively connected with the inlet and the input end of the fuel supply liquid level sensor, and the third control valve is used for controlling the inlet to be communicated with or disconnected from the input end of the fuel supply liquid level sensor.
Optionally, the fuel supply system further includes a fuel tank fuel supply pipe, two ends of the fuel tank fuel supply pipe are respectively connected with the liquid inlet and the output end of the fuel supply liquid level sensor, and the third control valve is disposed at the liquid inlet, the fuel tank fuel supply pipe, the input end of the fuel supply liquid level sensor or the output end of the fuel supply liquid level sensor.
The utility model comprises a sensor body, a liquid pump and a first control valve, wherein the sensor body is provided with a connecting port, a liquid outlet and a liquid inlet, the liquid pump is connected with a first oil tank through the connecting port and is connected with the liquid outlet under the control of the first control valve to drive oil of the first oil tank to enter an engine through the liquid outlet, and the liquid pump is also connected with the liquid inlet to timely drive oil of a second oil tank to enter the first oil tank. Realize the fuel through the cooperation between liquid pump and the first control valve and carry, can improve the fuel utilization ratio, reduce "dead oil" in the oil tank to can simplify level sensor's structure, be favorable to reducing assembly process and assembly risk, reduction in production cost.
Drawings
Fig. 1 is a perspective view of a liquid level sensor of an integrated pump according to an embodiment of the present utility model.
FIG. 2 is a front view of a fluid level sensor of an integrated pump according to an embodiment of the present utility model.
FIG. 3 is a cross-sectional view of a fluid level sensor of an integrated pump according to an embodiment of the present utility model during engine ignition.
FIG. 4 is a cross-sectional view of a fluid level sensor of an integrated pump according to an embodiment of the present utility model after engine start.
Fig. 5 is a cross-sectional view of the fluid level sensor of the integrated pump of the present utility model when the oil in the first tank is below the fluid level threshold.
FIG. 6 is a schematic diagram of a fuel supply system according to an embodiment of the present utility model.
Fig. 7 is a schematic cross-sectional view of a fuel level sensor in a fuel supply system according to an embodiment of the present utility model.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present utility model in detail, the following description is made in connection with the embodiments and the accompanying drawings.
Referring to fig. 1 to 6, the present utility model discloses a liquid level sensor 100 of an integrated pump, comprising: the sensor comprises a sensor body 1, a liquid pump 2 and a first control valve 3, wherein the sensor body 1 is used for detecting the liquid level of oil in a first oil tank 200, the sensor body 1 is provided with a connecting port 11, a liquid outlet 12 and a liquid inlet 13, the connecting port 11 is connected with the first oil tank 200, the liquid outlet 12 is connected with an engine 300, and the liquid inlet 13 is connected with a second oil tank 400; the liquid pump 2 is arranged on the sensor body 1, the liquid pump 2 is respectively connected with the connection port 11 and the liquid inlet 13, and the liquid pump 2 is used for driving oil of the second oil tank 400 to enter the first oil tank 200 through the liquid inlet 13 and the connection port 11; the first control valve 3 is connected with the liquid pump 2 and the liquid outlet 12 respectively, the first control valve 3 is used for controlling the liquid pump 2 to be communicated with or disconnected from the liquid outlet 12, and the liquid pump 2 is used for driving oil of the first oil tank 200 to enter the engine 300 through the connection port 11 and the liquid outlet 12.
The utility model comprises a sensor body 1, a liquid pump 2 and a first control valve 3, wherein the sensor body 1 is provided with a connecting port 11, a liquid outlet 12 and a liquid inlet 13, the liquid pump 2 is connected with a first oil tank 200 through the connecting port 11 and is connected with the liquid outlet 12 under the control of the first control valve 3 to drive oil of the first oil tank 200 to enter an engine 300 through the liquid outlet 12, and the liquid pump 2 is also connected with the liquid inlet 13 to timely drive oil of a second oil tank 400 to enter the first oil tank 200. Realize the fuel through the cooperation between liquid pump 2 and the first control valve 3 and carry, can improve the fuel utilization ratio, reduce "dead oil" in the oil tank to can simplify level sensor's structure, be favorable to reducing assembly process and assembly risk, reduction in production cost.
Referring to fig. 1 to 6, the liquid level sensor 100 of the integrated pump further includes a second control valve 4, the second control valve 4 is connected to the connection port 11 and the liquid outlet 12, respectively, the second control valve 4 is used for controlling the connection port 11 to be connected to or disconnected from the liquid outlet 12, so that after the generator 300 is started, the second control valve 4 is opened, the connection port 11 is connected to the liquid outlet 12, and the generator 300 directly absorbs oil from the first oil tank 200.
Referring to fig. 1 to 6, the liquid pump 2 is a positive and negative rotation electric pump, and when the engine 300 is ignited, the liquid pump 2 is rotated in a positive direction to drive the oil in the first oil tank 200 to enter the engine 300 through the connection port 11 and the liquid outlet 12; when the sensor body 1 detects that the oil in the first oil tank 200 is below the liquid level threshold, the liquid pump 2 reverses to drive the oil of the second oil tank 400 into the first oil tank 200 through the liquid inlet 13 and the connection port 11. By changing the forward and reverse rotation of the liquid pump 2 and matching the first control valve 3 and the second control valve 4, the fuel of the first fuel tank 200 is delivered to the engine 300, and the fuel of the second fuel tank 400 is delivered to the first fuel tank 200, which is beneficial to improving the fuel utilization rate and reducing the dead fuel in the fuel tank.
Specifically, in the present embodiment, as shown in fig. 3, when the engine 300 is ignited, the liquid pump 2 is started, the first control valve 3 is opened, the second control valve 4 is closed to empty the air in the pipeline, the air is prevented from entering the engine 300 to affect the starting of the automobile, the liquid pump 2 is configured to rotate in the forward direction, the liquid pump 2 sucks the fuel of the first fuel tank 200 through the connection port 11 and conveys the fuel to the engine 300 through the liquid outlet 12, and after the engine 300 is started, the liquid pump 2 and the first control valve 3 are closed.
As shown in fig. 4 and 5, after the engine 300 is started, the first control valve 3 is kept closed, the second control valve 4 is opened, and the engine 300 directly sucks the fuel of the first fuel tank 200 through the liquid outlet 12, the second connection pipe 6 and the connection port 11 which are communicated with each other; if the oil in the first tank 200 is above the level threshold, as shown in fig. 4, the liquid pump 2 is kept off, and if the oil in the first tank 200 is below the level threshold, as shown in fig. 5, the liquid pump 2 is started, the liquid pump 2 is configured to reverse, and the liquid pump 2 sucks the fuel of the second tank 400 through the inlet 13 and inputs the fuel to the first tank 200 through the connection port 11.
Specifically, in the present embodiment, the liquid level threshold is seventy percent of the liquid level, but not limited thereto, when the oil in the first tank 200 is below seventy percent of the liquid level, the liquid pump 2 is configured to reverse to suck the fuel of the second tank 400 and input the fuel into the first tank 200 until the oil in the first tank 200 reaches the full level.
Referring to fig. 1 to 6, the sensor body 1 includes a first housing 14 and a second housing 15, a first connecting pipe 5 and a second connecting pipe 6 are connected between the first housing 14 and the second housing 15, the first housing 14 is provided with a liquid outlet 12 and a liquid inlet 13, the second housing 15 is provided with a connecting port 11, one ends of the first connecting pipe 5 and the second connecting pipe 6 are communicated with the connecting port 11, the other ends of the first connecting pipe 5 are communicated with the liquid pump 2, and the other ends of the second connecting pipe 6 are communicated with the liquid outlet 12, so that the liquid level sensor is convenient to convey fuel to the first fuel tank 200 and absorb fuel from the first fuel tank 200.
Specifically, in the present embodiment, the liquid pump 2 is installed in the first housing 14, the oil suction port 141 and the oil supply port 142 are installed on the outer side surface of the first housing 14, the port of the oil suction port 141 is formed as the liquid outlet 12, the port of the oil supply port 142 is formed as the liquid inlet 13, the first connecting pipe 5 is an oil supply pipe, the second connecting pipe 6 is an oil suction pipe, and both ends of the first connecting pipe 5 and the second connecting pipe 6 extend into the first housing 14 and the second housing 15 through the bottom surface of the first housing 14 and the top surface of the second housing 15, respectively, but not limited thereto.
Specifically, in this embodiment, the first housing 14 is further provided with an oil return port 143, an oil return pipe 7 is further connected between the first housing 14 and the second housing 15, the oil return port 143 is communicated with the oil return pipe 7, an outward end of the oil return port 143 is connected with the engine 300 through the engine oil return pipe 301, and an end of the oil return pipe 7 close to the second housing 15 is communicated with the connection port 11, so that the engine 300 returns redundant fuel to the first fuel tank 200 through the oil return port 143 and the oil return pipe 7.
Specifically, in the present embodiment, the first housing 14 is provided with the connector 144, the second housing 15 is provided with the filter screen 151, the filter screen 151 is provided corresponding to the connection port 11, the filter screen 151 is capable of filtering fuel, the valve 8 is connected between the first housing 14 and the second housing 15, the valve 8 is slidably sleeved with a float to detect the liquid level of the first oil tank 200, the valve 8 is connected with the connector 144, and the connector 144 is connected with an external control device so that the control device timely adjusts the liquid pump 2 according to the liquid level detection information of the valve 8, but is not limited thereto.
Referring to fig. 1 to 5, a first channel 145 and a second channel 146 are disposed in the first housing 14, which are perpendicular to each other, one end of the first channel 145 is communicated with one end of the second channel 146, the other end of the first channel 145 is communicated with the liquid pump 2, the other end of the second channel 146 is communicated with the liquid outlet 12, the first control valve 3 is an electromagnetic valve, the first control valve 3 is mounted on the first housing 14, the first control valve 3 includes a control end 31, and the control end 31 is used for opening or closing a port of the first channel 145 far from one end of the liquid pump 2 so that the first channel 145 is communicated with or disconnected from the second channel 146, which is beneficial to simplifying the structure of the liquid level sensor and accurately controlling the flow direction of the fuel.
Specifically, in the present embodiment, the first control valve 3 is installed at the outside of the first housing 14, the control end 31 protrudes into the inside of the first housing 14, and as shown in fig. 3, when the engine 300 is ignited, the control end 31 opens the port of the first passage 145 to communicate the liquid pump 2 with the liquid outlet 12, but not limited thereto, and in some embodiments, the first control valve 3 may be another type of control valve.
Referring to fig. 1 to 5, the second control valve 4 is a one-way valve, the second control valve 4 is installed at the second connection pipe 6, one end of the second connection pipe 6 is communicated with the second channel 146, the other end is communicated with the connection port 11, after the engine 300 is started, the second control valve 4 is opened to enable the connection port 11 to be communicated with the liquid outlet 12, the arrangement of the second control valve 4 is beneficial to the engine 300 to directly suck the fuel through the liquid level sensor, meanwhile, when the engine is ignited, the first control valve 3 is opened, the liquid pump 2 is rotated to suck the fuel from the first fuel tank 200 through the first connection pipe 5, and when the fuel is conveyed to the engine, the fuel is prevented from being conveyed back to the first fuel tank 200 through the second connection pipe 6.
Specifically, in the present embodiment, as shown in fig. 4 and 5, after the engine 300 is started, the second control valve 4 is used to control the flow of fuel from the connection port 11 to the liquid outlet 12 via the second connection pipe 6 so that the engine 300 can draw fuel from the first fuel tank 200, but not limited thereto, and in some embodiments, the second control valve 4 may be another type of control valve.
Referring to fig. 1 to 6, the sensor body 1 is provided with a communicator 9, one end of the communicator 9 communicates with the first oil tank 200, and the other end communicates with the external space.
Specifically, in the present embodiment, the external space refers to a space in which air is located, and the communicating vessel 9 is an air port mounted on the outer side surface of the first housing 14, but not limited thereto, and the communicating vessel 9 balances the internal and external air pressures of the first oil tank 200 by communicating the first oil tank 200 with the external space.
Referring to fig. 1 to 7, the present utility model discloses a fuel supply system, which includes: a first tank 200 and a second tank 400, the first tank 200 being provided with a pump-integrated level sensor 100 as described above; the second oil tank 400 is provided with an oil supply level sensor 500, an input end of the oil supply level sensor 500 is connected with the second oil tank 400, and an output end of the oil supply level sensor 500 is connected with the liquid inlet 13.
Referring to fig. 6, the volume of the first fuel tank 200 is smaller than that of the second fuel tank 400, and the fuel is supplied to the engine 300 through the first fuel tank 200, so that it is possible to prevent the engine 300 from sucking oil when the vehicle climbs a steep slope and causing flameout of the vehicle, and to facilitate improvement of fuel utilization and reduction of "dead fuel" in the fuel tank.
Referring to fig. 6, the first oil tank 200 is further provided with a filter 201, an input end of the filter 201 is connected to the liquid outlet 12, an output end of the filter 201 is connected to the engine 300, and the filter 201 is used for filtering oil output to the engine 300.
Specifically, in the present embodiment, the input end of the filter 201 is connected to the end of the oil suction port 141 facing outward through the third connection pipe 202, the output end of the filter 201 is connected to the engine oil supply pipe 302, and the filter 201 is a coarse filter, which can perform coarse filtration on the fuel, but is not limited thereto.
Referring to fig. 1 to 7, the fuel supply system further includes a third control valve 510, where the third control valve 510 is connected to the inlet 13 and the input end of the fuel level sensor 500, and the third control valve 510 is used to control the inlet 13 to be connected to or disconnected from the input end of the fuel level sensor 500, so as to facilitate accurate control of the fuel flow direction.
Specifically, in the present embodiment, the third control valve 510 is a check valve, and when the liquid pump 2 is configured to be reversed, the third control valve 510 is opened, and the third control valve 510 is used to control the fuel of the second fuel tank 400 to be delivered to the first fuel tank 200; and the liquid pump 2 is configured to rotate forward, the third control valve 510 is closed to disconnect the liquid inlet 13 from the input end of the liquid supply level sensor 500, so as to avoid the liquid pump 2 from sucking the fuel of the first fuel tank 200 and then delivering the fuel to the second fuel tank 400.
Referring to fig. 1 to 6, the fuel supply system further includes a tank fuel supply pipe 600, both ends of the tank fuel supply pipe 600 are respectively connected with the inlet 13 and the output end of the fuel supply level sensor 500, and a third control valve 510 is provided at the inlet 13, the tank fuel supply pipe 600, the input end of the fuel supply level sensor 500, or the output end of the fuel supply level sensor 500.
Specifically, in this embodiment, the fuel supply level sensor 500 includes a connection end 501, a suction end 502, and a fuel supply connection pipe 503 connecting the connection end 501 and the suction end 502, the connection end 501 is an output end of the fuel supply level sensor 500, the suction end 502 is an input end of the fuel supply level sensor 500, the suction end 502 is communicated with the second fuel tank 400 and is provided with a fuel tank filter screen 5021 to filter fuel, the connection end 501 is provided with a connection interface 5011, one end of the connection interface 5011 is communicated with one end of the fuel supply interface 142 outside through the fuel tank fuel supply pipe 600, and the other end of the connection interface 5011 is communicated with the suction end 502 through the fuel supply connection pipe 503, so that the fuel of the second fuel tank 400 sequentially passes through the suction end 502, the connection pipe 503, the connection interface 5011, and the fuel tank fuel supply pipe 600 and then is delivered to the first fuel tank 200.
Referring to fig. 6, in the present embodiment, the connection end 501 of the oil supply level sensor 500 is provided with an air pressure balancing port 504, and both ends of the air pressure balancing port 504 are respectively communicated with the second oil tank 400 and the external space to balance the internal and external air pressures of the second oil tank 400, but not limited thereto.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.
Claims (11)
1. A level sensor for an integrated pump, comprising:
the sensor body is used for detecting the oil level in the first oil tank, the sensor body is provided with a connecting port, a liquid outlet and a liquid inlet, the connecting port is connected with the first oil tank, the liquid outlet is connected with the engine, and the liquid inlet is connected with the second oil tank;
the liquid pump is arranged on the sensor body and is respectively connected with the connecting port and the liquid inlet, and the liquid pump is used for driving oil of the second oil tank to enter the first oil tank through the liquid inlet and the connecting port;
the first control valve is respectively connected with the liquid pump and the liquid outlet, the first control valve is used for controlling the liquid pump to be communicated with or disconnected from the liquid outlet, and the liquid pump is used for driving oil of the first oil tank to enter the engine through the connecting port and the liquid outlet.
2. The integrated pump level sensor of claim 1, further comprising a second control valve connected to the connection port and the liquid outlet, respectively, the second control valve being configured to control the connection port to be connected to or disconnected from the liquid outlet.
3. The integrated pump level sensor of claim 1, wherein the liquid pump is a counter-rotating electric pump, and when the engine fires, the liquid pump rotates in a forward direction to drive oil from the first oil tank into the engine through the connection port and the liquid outlet; when the sensor body detects that the oil in the first oil tank is lower than a liquid level threshold, the liquid pump reverses to drive the oil in the second oil tank to enter the first oil tank through the liquid inlet and the connection port.
4. The integrated pump liquid level sensor according to claim 2, wherein the sensor body comprises a first housing and a second housing, a first connecting pipe and a second connecting pipe are connected between the first housing and the second housing, the first housing is provided with the liquid outlet and the liquid inlet, the second housing is provided with the connection port, one ends of the first connecting pipe and the second connecting pipe are communicated with the connection port, the other ends of the first connecting pipe are communicated with the liquid pump, and the other ends of the second connecting pipe are communicated with the liquid outlet.
5. The integrated pump liquid level sensor of claim 4, wherein a first channel and a second channel are disposed in the first housing, wherein one end of the first channel is communicated with one end of the second channel, the other end of the first channel is communicated with the liquid pump, the other end of the second channel is communicated with the liquid outlet, the first control valve is an electromagnetic valve, the first control valve is mounted on the first housing, and the first control valve comprises a control end for opening or closing a port of the first channel away from one end of the liquid pump so as to enable the first channel to be communicated with or disconnected from the second channel.
6. The integrated pump fluid level sensor of claim 5, wherein the second control valve is a one-way valve, the second control valve is mounted on the second connection pipe, one end of the second connection pipe is communicated with the second channel, the other end of the second connection pipe is communicated with the connection port, and after the engine is started, the second control valve is opened to enable the connection port to be communicated with the fluid outlet.
7. A fuel supply system, comprising:
a first tank provided with a liquid level sensor of the integrated pump according to any one of claims 1 to 6;
the second oil tank, the second oil tank is provided with fuel feeding level sensor, fuel feeding level sensor's input with the second oil tank is connected, fuel feeding level sensor's output with the inlet is connected.
8. The fuel supply system of claim 7, wherein the volume of the first fuel tank is less than the volume of the second fuel tank.
9. The fuel supply system according to claim 7, wherein the first fuel tank is further provided with a filter, an input end of the filter being connected to the liquid outlet, an output end of the filter being connected to the engine, the filter being for filtering oil output to the engine.
10. The fuel supply system of claim 7, further comprising a third control valve connected to the inlet and the input of the fuel level sensor, respectively, the third control valve being configured to control the inlet to be in communication with or out of communication with the input of the fuel level sensor.
11. The fuel supply system of claim 10, further comprising a tank filler pipe, wherein two ends of the tank filler pipe are connected to the inlet and the output of the fuel level sensor, respectively, and wherein the third control valve is disposed at the inlet, the tank filler pipe, the input of the fuel level sensor, or the output of the fuel level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322478528.7U CN220769606U (en) | 2023-09-12 | 2023-09-12 | Liquid level sensor of integrated pump and fuel supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322478528.7U CN220769606U (en) | 2023-09-12 | 2023-09-12 | Liquid level sensor of integrated pump and fuel supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769606U true CN220769606U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322478528.7U Active CN220769606U (en) | 2023-09-12 | 2023-09-12 | Liquid level sensor of integrated pump and fuel supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769606U (en) |
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2023
- 2023-09-12 CN CN202322478528.7U patent/CN220769606U/en active Active
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