CN211082091U - Fuel supply system with exhaust function - Google Patents
Fuel supply system with exhaust function Download PDFInfo
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- CN211082091U CN211082091U CN201921634421.4U CN201921634421U CN211082091U CN 211082091 U CN211082091 U CN 211082091U CN 201921634421 U CN201921634421 U CN 201921634421U CN 211082091 U CN211082091 U CN 211082091U
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- fuel
- control valve
- assembly
- supply system
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- 239000000446 fuel Substances 0.000 title claims abstract description 215
- 239000002828 fuel tank Substances 0.000 claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 claims description 37
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000013022 venting Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 239000003921 oil Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 5
- 239000000470 constituent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The present application relates to a fuel supply system with an exhaust function, comprising: a fuel tank for storing fuel; the one-way control valve is arranged in the fuel tank and communicated with the fuel tank; the first end of the fuel pump assembly is communicated with the one-way control valve and is used for sucking the fuel out of the fuel tank, and when the fuel pump stops working, the one-way control valve can prevent the fuel from flowing back into the fuel tank; the first end of the electromagnetic control valve assembly is communicated with the second end of the fuel pump assembly, the second end of the electromagnetic control valve assembly is communicated with the fuel tank, and when the electromagnetic control valve assembly and the fuel pump assembly are opened simultaneously, gas at the rear end of the fuel pump assembly can be discharged into the fuel tank from the electromagnetic control valve assembly; and the fuel injector component device is communicated with the second end of the fuel pump component and is used for spraying fuel. The purpose of exhausting gas inwards and preventing fuel with gas from returning to the fuel tank in the fuel supply system is achieved.
Description
Technical Field
The utility model relates to a fuel supply field, in particular to fuel supply system who has exhaust effect.
Background
In the methanol supply system, since methanol is evaporable, evaporative emission needs to be controlled, but pipeline gas discharge cannot be performed externally.
Normally, when the vehicle is just started, the pipeline is empty and filled with air; after the vehicle is kept still for a long time, the methanol can flow back to the oil tank, and the pipeline is also filled with air; or after the pipeline is maintained, more gas exists in part of the pipeline; and the rear end of the oil outlet of the oil pump is basically closed, so that the pressure regulating control valve assembly cannot be opened under the condition that the oil pump does not suck out fuel oil, the leakage amount of the pressure regulating control valve assembly is very small, the gas resistance at the rear end of the oil pump is large, and the oil pump has certain oil suction difficulty risk during starting.
SUMMERY OF THE UTILITY MODEL
The utility model discloses what solve is that unable external exhaust and the methanol fuel who has gas flow back the technical problem of oil pump among the methanol fuel feed system.
In order to solve the technical problem, the utility model discloses a fuel supply system who has exhaust effect, include:
a fuel tank for storing fuel;
a one-way control valve disposed in the fuel tank, the one-way control valve being in communication with the fuel tank;
a fuel pump assembly, a first end of the fuel pump assembly being in communication with the one-way control valve for drawing fuel out of the fuel tank, the one-way control valve being capable of preventing backflow of the fuel into the fuel tank when the fuel pump is not in operation;
a solenoid control valve assembly having a first end in communication with a second end of the fuel pump assembly and a second end in communication with the fuel tank, wherein when the solenoid control valve assembly and the fuel pump assembly are simultaneously open, gas at the rear end of the fuel pump assembly can be vented from the solenoid control valve assembly into the fuel tank;
an injector assembly in communication with the second end of the fuel pump assembly for ejecting fuel.
Preferably, the electromagnetic control valve assembly comprises an electromagnetic valve and a controller, the electromagnetic valve is electrically connected with the controller, the controller is used for controlling the opening and closing of the electromagnetic control valve, and the controller is also used for controlling the opening time of the electromagnetic control valve.
Preferably, the fuel pump assembly includes a fuel pump and a second controller, the fuel pump and the second controller are electrically connected, the second controller controls the opening and closing of the fuel pump, a fuel inlet of the fuel pump is communicated with the one-way control valve, and a fuel outlet of the fuel pump is communicated with the solenoid control valve assembly.
Preferably, the vented fuel supply system further comprises a pressure regulating control valve assembly, a first end of the pressure regulating control valve assembly being in communication with a second end of the fuel pump assembly, a second end of the pressure regulating control valve assembly being in communication with the fuel tank, the pressure regulating control valve assembly being capable of flowing fuel through the pressure regulating control valve assembly into the fuel tank when the fuel pressure exceeds a line operating pressure.
Preferably, the fuel pump assembly is external to the fuel tank.
Preferably, one end of the one-way control valve is communicated with the first filtering assembly.
Preferably, two ends of the one-way control valve are respectively communicated with one first filtering assembly.
Preferably, both ends of the second filter assembly are respectively communicated with the fuel pump assembly and the fuel injector assembly.
Preferably, the pressure regulating control valve assembly comprises a third controller, a pressure regulating valve and a pressure sensor arranged on a communication pipeline, two ends of the pressure regulating valve are respectively communicated with the fuel outlet end of the fuel pump and the fuel tank, the third controller receives the pressure of the inner wall of the communication pipeline measured by the pressure sensor, and when the pressure exceeds the pressure borne by the pipeline during working, the controller controls the pressure regulating valve to be opened, and partial fuel is discharged into the fuel tank through the pressure regulating valve.
Preferably, the fuel injector assembly comprises a cylinder, at least one section of conduit, a fuel injection pump assembly, a fuel injector and a fuel rail, wherein nozzles of all the cylinders, the conduit, the fuel injection pump assembly, the conduit, the fuel injector and the fuel rail are sequentially communicated end to end, the nozzle of the cylinder feeds fuel into the conduit, the fuel injection pump assembly feeds the fuel into the conduit and then the conduit feeds the fuel into the fuel injector, and the fuel injector is connected to the fuel rail through the conduit.
Adopt above-mentioned technical scheme, have following beneficial effect:
when the electromagnetic control valve assembly and the fuel pump assembly are opened simultaneously, gas at the rear end of the fuel pump assembly can be discharged into the fuel tank from the electromagnetic control valve assembly, and the purpose of internal air exhaust in a fuel supply system is achieved.
The one-way control valve can prevent the fuel from flowing backwards into the fuel tank, so that the fuel with gas in the fuel supply system is prevented from flowing back into the fuel tank.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a fuel supply system with venting function according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fuel supply system with an exhaust function according to still another embodiment of the present invention;
the following is a supplementary description of the drawings:
1-a fuel tank; 2-one-way control valve; 3-a fuel pump assembly; 4-a solenoid control valve assembly; 5-oil sprayer forming device; 6-a pressure regulating control valve assembly; 7-a first filter assembly; 8-second filter assembly.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
An exhaust-enabled fuel delivery system comprising:
a fuel tank 1 for storing fuel;
a check control valve 2, the check control valve 2 being provided in the fuel tank 1, the check control valve 2 being in communication with the fuel tank 1;
a fuel pump assembly 3, a first end of the fuel pump assembly 3 is communicated with the one-way control valve 2 for sucking out the fuel from the fuel tank 1, and when the fuel pump assembly stops working, the one-way control valve 2 can prevent the fuel from flowing backwards to the fuel tank 1;
a solenoid control valve assembly 4, a first end of the solenoid control valve assembly 4 being communicated with a second end of the fuel pump assembly 3, a second end of the solenoid control valve assembly 4 being communicated with the fuel tank 1, and when the solenoid control valve assembly 4 and the fuel pump assembly 3 are simultaneously opened, gas at the rear end of the fuel pump assembly 3 can be discharged from the solenoid control valve assembly 4 into the fuel tank 1;
an injector constituent device 5, the injector constituent device 5 being communicated with a second end of the fuel pump assembly 3 for ejecting fuel.
The fuel is preferably methanol, and may be gasoline, diesel oil, etc. The components and the device can be communicated by a conduit to carry out fuel delivery.
When the solenoid control valve assembly 4 and the fuel pump assembly 3 are opened simultaneously, the gas at the rear end of the fuel pump assembly 3 can be discharged into the fuel tank 1 from the solenoid control valve assembly 4, so that the aim of internal air exhaust in a fuel supply system is fulfilled.
The check valve 2 prevents the fuel from flowing backward into the fuel tank 1, and prevents the fuel with gas from flowing back into the fuel tank 1 in the fuel supply system.
In some embodiments, the solenoid control valve assembly 4 includes a solenoid valve and a first controller, the solenoid valve is electrically connected to the first controller, the first controller is configured to control opening and closing of the solenoid control valve, and the first controller is further configured to control an opening time of the solenoid control valve, and the opening time is a manually preset or pre-stored value.
In some embodiments, the fuel pump assembly 3 includes a fuel pump and a second controller, the fuel pump and the second controller are electrically connected, the second controller controls the opening and closing of the fuel pump, a fuel inlet of the fuel pump is communicated with the one-way control valve 2, and a fuel outlet of the fuel pump is communicated with the solenoid control valve assembly 4.
In some embodiments, the vented fuel supply system further comprises a pressure regulating control valve assembly 6, a first end of the pressure regulating control valve assembly 6 being in communication with a second end of the fuel pump assembly 3, a second end of the pressure regulating control valve assembly 6 being in communication with the fuel tank 1, the pressure regulating control valve assembly 6 being capable of flowing fuel through the pressure regulating control valve assembly 6 into the fuel tank 1 when the fuel pressure exceeds a line operating pressure;
further, in some embodiments, the pressure regulating control valve assembly 6 includes a third controller, a pressure regulating valve and a pressure sensor disposed on a communication pipeline, wherein two ends of the pressure regulating valve are respectively communicated with the fuel outlet end of the fuel pump and the fuel tank 1, the third controller receives the pressure sensor to measure the pressure of the inner wall of the communication pipeline, and when the pressure exceeds the pressure bearing force of the pipeline in operation, the controller controls the pressure regulating valve to open to discharge part of the fuel into the fuel tank 1 through the pressure regulating valve.
In some embodiments, the fuel pump assembly 3 is external to the fuel tank 1.
In some embodiments, one end of the one-way control valve 2 communicates with the first filter assembly 7;
the two ends of the first filter assembly 7 are respectively communicated with the fuel pump assembly 3 and the one-way control valve 2; or a first end of the first filter assembly 7 is connected with the one-way valve controller, and a second end of the first filter assembly 7 is communicated with the fuel tank 1; the first filter assembly 7 comprises at least one filter screen, the first filter assembly 7 can be a filter screen or a filter or a combination of the filter screen and the filter, and the first filter assembly 7 is used for filtering particulate impurities in the fuel tank and preventing the one-way valve assembly from being blocked.
In some embodiments, the two ends of the one-way control valve 2 are communicated with one first filter assembly 7. The first filter assembly 7 is adapted to filter particulate impurities of the fuel in the fuel tank and particulate impurities of the fuel passing to the fuel pump assembly 3 while preventing clogging of the check valve assembly and the fuel pump assembly 3.
In some embodiments, two ends of the second filter assembly 8 are respectively communicated with the fuel pump assembly 3 and the fuel injector assembly 5, the second filter assembly 8 can be a filter screen or a filter or a combination of the filter screen and the filter, and the second filter assembly 8 is used for filtering particulate impurities in the fuel. The fuel injector constituent device 5 is prevented from clogging.
In some embodiments, the fuel injector assembly 5 includes a cylinder, at least one conduit, a fuel injection pump assembly, a fuel injector, and a fuel rail, the nozzles of all cylinders, the conduit, the fuel injection pump assembly, the conduit, the fuel injector, and the fuel rail are in serial end-to-end communication, the nozzles of the cylinder feed fuel into the conduit, the fuel injection pump assembly feeds the fuel into the conduit and then from the conduit into the fuel injector, and the fuel injector is connected to the fuel rail by a conduit.
In the above combination of all embodiments, the solenoid control valve assembly 4 is closed, when the fuel pump assembly 3 is operated, the fuel is sprayed out through the first filter assembly 7, the one-way control valve 2, the fuel pump assembly 3, the second filter assembly 8 and the fuel injector assembly 5, and when the fuel pressure in the pressure regulating control valve assembly 6 exceeds the pipeline working pressure, part of the fuel returns to the fuel tank 1 through the pressure regulating control valve assembly 6, so as to reduce the pipeline working pressure.
Wherein, after the solenoid control valve assembly 4 is opened, the fuel passes through the first filter assembly 7, the one-way control valve 2, the fuel pump assembly 3 and the solenoid control valve assembly 4 and returns to the fuel tank 1.
The working principle and the efficacy are described from one embodiment:
1 fuel supply function
The second controller controls the fuel pump to work, when the electromagnetic control valve assembly 4 keeps closing, the fuel pump assembly 3 generates vacuum degree to the front end of the fuel pump assembly 3, sucks fuel to a pipeline at the rear end of the fuel pump assembly 3, the pressure regulating control valve assembly 6 can regulate pressure, part of the fuel returns to the fuel tank 1 through the pressure regulating control valve assembly 6, and the pressure of the pipeline at the rear end of the fuel pump assembly 3 is ensured to be within a set fuel pressure range. The second filter assembly 8 filters fine impurities in the fuel, and the fuel enters an air inlet passage of the engine through the fuel injector composition device 5.
2 exhaust function before starting
Before starting, according to the operation habit of a driver, the second controller controls the fuel pump to work and controls the electromagnetic control valve assembly 4 to be opened for 3s, wherein the electromagnetic control valve assembly 4 is connected with the fuel tank 1, a pipeline joint extending into the fuel tank 1 is short, and the pipeline joint is connected with gas in the fuel tank 1. Thus, the solenoid control valve assembly 4 is opened, so that the rear end of the fuel pump assembly 3 is free from resistance, and a part of gas in the pipeline is discharged, so that the fuel can be smoothly sucked out through the fuel pump assembly 3.
3 preventing fuel from flowing backwards
When the exhaust is finished, the fuel pump assembly 3 stops working, and the solenoid control valve assembly 4 is closed. Under the action of the one-way control valve 2, the fuel sucked from the front end of the fuel pump assembly 3 stays in the pipeline and cannot flow back to the fuel tank 1.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A fuel supply system having an exhaust function, comprising:
a fuel tank (1) for storing fuel;
a one-way control valve (2), the one-way control valve (2) being provided in the fuel tank (1), the one-way control valve (2) being in communication with the fuel tank (1);
a fuel pump assembly (3), a first end of the fuel pump assembly (3) is communicated with the one-way control valve (2) and is used for sucking fuel out of the fuel tank (1), and when the fuel pump stops working, the one-way control valve (2) can prevent the fuel from flowing back to the fuel tank (1);
a solenoid control valve assembly (4), wherein a first end of the solenoid control valve assembly (4) is communicated with a second end of the fuel pump assembly (3), a second end of the solenoid control valve assembly (4) is communicated with the fuel tank (1), and when the solenoid control valve assembly (4) and the fuel pump assembly (3) are opened simultaneously, gas at the rear end of the fuel pump assembly (3) can be discharged into the fuel tank (1) from the solenoid control valve assembly (4);
an injector assembly (5), the injector assembly (5) being in communication with the second end of the fuel pump assembly (3) for ejecting fuel.
2. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the electromagnetic control valve assembly (4) comprises an electromagnetic valve and a controller, the electromagnetic valve is electrically connected with the controller, the controller is used for controlling the opening and closing of the electromagnetic control valve, and the controller is also used for controlling the opening time of the electromagnetic control valve.
3. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel pump assembly (3) comprises a fuel pump and a second controller, the fuel pump is electrically connected with the second controller, the second controller controls the opening and closing of the fuel pump, a fuel inlet of the fuel pump is communicated with the one-way control valve (2), and a fuel outlet of the fuel pump is communicated with the electromagnetic control valve assembly (4).
4. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel supply system with the venting function further comprises a pressure regulating control valve assembly (6), a first end of the pressure regulating control valve assembly (6) is communicated with a second end of the fuel pump assembly (3), a second end of the pressure regulating control valve assembly (6) is communicated with the fuel tank (1), and the pressure regulating control valve assembly (6) can flow fuel into the fuel tank (1) through the pressure regulating control valve assembly (6) when the fuel pressure exceeds a pipeline working pressure.
5. The exhaust-enabled fuel supply system according to claim 4, characterized in that: the pressure regulating control valve assembly (6) comprises a third controller, a pressure regulating valve and a pressure sensor arranged on a communicating pipeline, wherein two ends of the pressure regulating valve are communicated with a fuel outlet end of the fuel pump and the fuel tank (1) respectively, the third controller receives the pressure of the inner wall of the communicating pipeline measured by the pressure sensor, when the pressure exceeds the pressure borne by the pipeline in work, the controller controls the pressure regulating valve to be opened, and partial fuel is discharged into the fuel tank (1) through the pressure regulating valve.
6. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel pump assembly (3) is externally arranged on the fuel tank (1).
7. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel supply system with the exhaust function further comprises a first filter assembly (7), and one end of the one-way control valve (2) is communicated with the first filter assembly (7).
8. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel supply system with the exhaust function further comprises a first filtering assembly (7), and two ends of the one-way control valve (2) are communicated with the first filtering assembly (7) respectively.
9. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel supply system with the exhaust function further comprises a second filter assembly (8), and two ends of the second filter assembly (8) are respectively communicated with the fuel pump assembly (3) and the fuel injector assembly device (5).
10. The exhaust-enabled fuel supply system according to claim 1, characterized in that: the fuel injector forming device (5) comprises cylinders, at least one section of guide pipe, a fuel injection pump assembly, a fuel injector and a fuel rail, wherein nozzles of all the cylinders, the guide pipe, the fuel injection pump assembly, the guide pipe, the fuel injector and the fuel rail are sequentially communicated end to end, the nozzles of the cylinders send fuel into the guide pipe, the fuel injection pump assembly sends the fuel into the guide pipe and then the fuel is sent into the fuel injector through the guide pipe, and the fuel injector is connected to the fuel rail through the guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921634421.4U CN211082091U (en) | 2019-09-27 | 2019-09-27 | Fuel supply system with exhaust function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921634421.4U CN211082091U (en) | 2019-09-27 | 2019-09-27 | Fuel supply system with exhaust function |
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| Publication Number | Publication Date |
|---|---|
| CN211082091U true CN211082091U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921634421.4U Active CN211082091U (en) | 2019-09-27 | 2019-09-27 | Fuel supply system with exhaust function |
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| CN (1) | CN211082091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
-
2019
- 2019-09-27 CN CN201921634421.4U patent/CN211082091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
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| GR01 | Patent grant | ||
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Address after: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Country or region after: China Patentee after: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Country or region before: China Patentee before: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240318 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd. Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Country or region before: China Patentee before: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |