CN210195911U - Electronic fuel pump assembly convenient to maintain - Google Patents
Electronic fuel pump assembly convenient to maintain Download PDFInfo
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- CN210195911U CN210195911U CN201920586945.4U CN201920586945U CN210195911U CN 210195911 U CN210195911 U CN 210195911U CN 201920586945 U CN201920586945 U CN 201920586945U CN 210195911 U CN210195911 U CN 210195911U
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Abstract
The utility model relates to an electronic fuel pump assembly convenient for maintenance, which comprises an oil filling limiting valve, an oil pump flange, an oil pump core and an oil pump oil drum; the oil pump flange and the oil pump oil barrel are distributed in an offset mode, and the center line of the oil pump flange is separated from the center line of the oil pump oil barrel; the oiling limiting valve is fixed on the oil pump flange in a clamping manner; the bottom surface of the oil pump flange is provided with a clamping mechanism; the corresponding oiling limiting valve is provided with clamping calipers matched with the clamping mechanism; the oil pump cartridge is vented through an oil fill limit valve to limit the amount of oil filled. Its advantages are: the oil filling limiting valve is fixed on an oil pump flange in a clamping manner; this design is through the joint mode for can dismantle between refuel limiting valve and the oil pump flange, like this, refuel under the condition that limiting valve became invalid, refuel limiting valve through dismantling alone and just can independently change, the user maintenance cost that will significantly reduce.
Description
Technical Field
The utility model belongs to the technical field of the electron fuel pump technique and specifically relates to an electron fuel pump assembly convenient to maintain.
Background
In the current automobile emission standard, fuel evaporation control and limiting of fuel evaporation external displacement are used as key inspection items. There are clear and stringent requirements on fuel control and limiting the evaporative displacement in the relevant technical standards. For vehicles that do not meet the standards, production and driving on the road surface is prohibited. For this reason, in many vehicles, fuel filling limitation devices and diagnostic modules are provided, which further reduce the risk of external emissions of fuel vapors by means of fuel filling limitation control and leak diagnosis.
Vehicles on the market currently integrate a refueling limiting valve (FLVV) and a diagnosis module on a fuel tank, so that once the FLVV or the diagnosis module fails, the refueling evaporation control of the whole fuel system and the leakage diagnosis of the fuel system fail, fuel vapor leakage is caused, and the environment is polluted. And for the invalid parts, because the parts are fixed by adopting the non-detachable scheme, the scheme of replacing the whole assembly is adopted during replacement, so that the use and maintenance cost of a user is greatly increased.
Chinese patent document CN201510981699.9, application date 20151225, with patent names: the utility model provides an automotive electronics fuel pump detecting system, discloses an automotive electronics fuel pump detecting system, includes oil tank, surveyed electronic fuel pump, vibration sensor, check valve, high pressure filter, temperature sensor, manometer, pressure sensor, flow sensor, proportion choke valve, stop valve, return oil filter, drive power supply. The driving power supply is connected with the tested electronic fuel pump and provides power input for the tested electronic fuel pump; an oil suction port of the tested electronic fuel pump is connected with the oil tank, a vibration sensor is connected between the tested electronic fuel pump and the one-way valve, and the tested electronic fuel pump is connected to the high-pressure filter through the one-way valve; the oil liquid is divided into three paths after passing through a high-pressure filter: the first path is connected to a temperature sensor, the second path is connected to a pressure gauge, and the third path is connected to a pressure sensor; the oil return port of the proportional throttle valve is connected with the pressure sensor through the flow sensor, and the oil outlet of the proportional throttle valve is connected to the oil tank through the stop valve and the oil return filter.
The automobile electronic fuel pump detection system disclosed in the patent document realizes comprehensive detection of key parameters such as working pressure, flow, temperature and vibration of the electronic fuel pump, and can obtain a more comprehensive and complete electronic fuel pump working performance evaluation system. However, no corresponding disclosure is found about a technical solution that facilitates maintenance and replacement.
In view of the foregoing, there is a need for an electronic fuel pump assembly that is easy to maintain and replace. No report is found about the electronic fuel pump assembly at present.
Disclosure of Invention
The utility model aims at providing an avoid being convenient for maintain and change electron fuel pump assembly.
The utility model has the advantages that:
1. the utility model discloses an electronic fuel pump convenient for maintenance, which is provided with an oiling limiting valve, wherein the oiling limiting valve is fixed on a fuel pump flange in a clamping way; this design is through the joint mode for can dismantle between refuel limiting valve and the oil pump flange, like this, refuel under the condition that limiting valve became invalid, refuel limiting valve through dismantling alone and just can independently change, the user maintenance cost that will significantly reduce.
2. The oil outlet of the oil pump, the oil return port of the oil pump and the interface of the oiling limiting valve are arranged on the same side; the diagnostic module mounting groove is arranged on the other side; the effect of this design is: the length of the pipeline between the oil outlet of the oil pump and the oil return port of the oil pump can be shortened, and the problems of fuel oil fluidity, pipeline winding and the like caused by overlong pipelines are avoided.
3. Set up latch mechanism on the oil pump flange, corresponding refuel and be equipped with joint calliper on the restriction valve, this design specifically discloses refuel the concrete structural style that the joint adopted between restriction valve and the oil pump flange, adopts this structural style's latch device, and fixed effectual, and convenient the dismantlement, convenient maintenance.
4. The diagnosis module mounting groove is arranged on the other side; and a diagnosis module is fixed in the diagnosis module mounting groove. The technical effect of the scheme is as follows: the diagnosis module can be detachably mounted, and is convenient to maintain and replace.
5. The problem of insufficient installation height is solved by the offset of the oil pump flange.
Drawings
Fig. 1 is a schematic structural diagram of a main view direction of an electronic fuel pump convenient to maintain according to the present invention.
Fig. 2 is a schematic top view of an electronic fuel pump of the present invention for easy maintenance.
Fig. 3 is a schematic structural view of the electronic fuel pump assembly of the present invention in the direction of the bottom side.
Fig. 4 is a schematic structural diagram of the electronic fuel pump of the present invention in a side view direction.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. oil filling limiting valve 11. clamping caliper
2. Diagnostic module
3. Oil pump flange 31. circular retaining ring
32. Clamping mechanism 33. refuel limiting valve interface
34. Oil pump outlet 35, oil pump return port
36. Diagnostic module mounting groove 37 oil pump plug port
4. Oil pump core 41. chassis
42. Oil pump oil drum with card 5
6. Float assembly
Referring to fig. 1, fig. 1 is a schematic structural diagram of a main view direction of an electronic fuel pump convenient to maintain according to the present invention. An electronic fuel pump assembly convenient to maintain comprises a fuel filling limiting valve 1, an oil pump flange 3, a diagnostic module 2, an oil pump core 4 and an oil pump oil drum 5; the oil pump flange 3 and the oil pump oil barrel 5 are distributed in an offset mode, and the center line of the oil pump flange 3 is separated from the center line of the oil pump oil barrel; one end of the oil pump core 4 is connected with an oil pump oil barrel 5, and the other end of the oil pump core is connected with an oil pump flange 3; and the oil pump core 4 limits the oil filling amount through ventilation of the oil filling limiting valve 1; the diagnostic module 2 is integrally fixed on the oil pump flange 3; the bottom end of the oiling limiting valve 1 is lower than the top end of an oil pump oil drum 5.
Referring to fig. 2, fig. 2 is a schematic top view of an electronic fuel pump convenient for maintenance according to the present invention. An oil pump oil outlet 34, an oil pump oil return opening 35, an oiling limiting valve interface 33 and a diagnosis module mounting groove 36 are arranged on the top end face of the oil pump flange 3; the oil pump oil outlet 34, the oil pump oil return port 35 and the oiling limiting valve interface 33 are arranged on the same side; the diagnosis module mounting groove 36 is arranged at the other side; the diagnosis module 2 is fixed in the diagnosis module mounting groove 36; the type of the diagnostic module 2 is NVLD 3; the diagnostic module mounting groove 36 is in a clamping groove structure; the oil pump flange 3 is provided with an oil pump plug port 37, and the oil pump core 4 is fixed on the oil pump flange 3 through the oil pump plug port 37.
Referring to fig. 3 and 4, fig. 3 is a schematic structural view of an electronic fuel pump assembly of the present invention in a direction of a bottom side. Fig. 4 is a schematic structural view of the electronic fuel pump of the present invention in a side view direction.
The bottom surface of the oil pump flange 3 is provided with a circular baffle ring 31 and a clamping mechanism 32; the corresponding oiling limiting valve 1 is provided with a clamping caliper 11 matched with a clamping mechanism 32.
A chassis 41 is further arranged above the oil pump barrel 5, clamping pieces 42 are arranged on two sides of the chassis 41, and a clamping cavity (not shown in the figure) is correspondingly arranged on the oil pump barrel 5; the card 42 is matched with the card cavity; one side of the oil pump oil drum 5 is connected with a floater assembly 6; the float assembly 6 is formed by a plurality of floats.
The embodiment needs to be explained as follows:
The refueling limiting valve 1 and the oil pump flange 3 are distributed in an offset mode, and the refueling limiting valve 1 can be independently replaced and maintained.
The oiling limiting valve 1 is fixed on the oil pump flange 3 in a clamping mode. This design is through the joint mode for can dismantle between refuel limiting valve 1 and the oil pump flange 3, like this, refuel under the condition that limiting valve 1 became invalid, refuel limiting valve 1 through dismantling alone and just can independently change, the user maintenance cost that will significantly reduce. In the prior art, the refueling limiting valve 1 is welded on the plastic fuel tank through friction welding, and once the refueling limiting valve 1 fails, the whole fuel tank is replaced.
The bottom surface of the oil pump flange 3 is provided with a circular baffle ring 31 and a clamping mechanism 32; the corresponding oiling limiting valve 1 is provided with a clamping caliper 11 matched with a clamping mechanism 32. The circular baffle ring 31 is arranged at the lower end of the oil pump flange 3, so that the function of limiting the area is achieved, and the pipeline is prevented from being wound; oil pump flange 3 on set up latch mechanism 32, corresponding refuel and be equipped with joint calliper 11 on the limiting valve 1, this design specifically discloses refuel the concrete structural style that the joint adopted between limiting valve 1 and the oil pump flange 3, adopts the latch device of this structural style, fixed effectual, and convenient the dismantlement, convenient maintenance.
The diagnosis module 2 is used for diagnosing the leakage amount of the whole fuel system, and the model of the diagnosis module 2 is NVLD 3. As regards the specific structure of the diagnostic module 2, it is known from the prior art and will not be described in detail here.
The oil pump oil outlet 34, the oil pump oil return port 35 and the oiling limiting valve interface 33 are arranged on the same side; the diagnosis module mounting groove 36 is arranged at the other side; the effect of this design is: the length of the pipeline between the oil outlet 34 of the oil pump and the oil return port 35 of the oil pump can be shortened, and the problems of fuel oil fluidity, pipeline winding and the like caused by overlong pipelines are avoided.
The diagnosis module mounting groove 36 is arranged at the other side; the diagnostic module 2 is fixed in the diagnostic module mounting groove 36. The technical effect of the scheme is as follows: so that the diagnostic module 2 can be detachably mounted, and is convenient to maintain and replace.
The float assembly 6 is formed by a plurality of floats. The effect of this design is: the liquid level change in the oil tank can be reflected in real time, and the sensitivity is good.
A chassis 41 is further arranged above the oil pump oil barrel 5, clamping pieces 42 are arranged on two sides of the chassis 41, and a clamping cavity is formed in the corresponding oil pump oil barrel 5; the card 42 mates with the card cavity. Make and be connected stable connection between oil pump core 4 and the oil pump bucket, avoid oil pump core 4 to take place to break away from the phenomenon in compression process.
The bottom end of the oiling limiting valve 1 is lower than the top end of an oil pump oil drum 5. The design requirement of the oil pump for reducing the compression height is met.
The utility model discloses an electronic fuel pump convenient for maintenance, which is provided with an oiling limiting valve 1, wherein the oiling limiting valve 1 is fixed on a fuel pump flange 3 in a clamping way; the design is in a clamping mode, so that the oiling limiting valve 1 and the oil pump flange 3 can be detached, and the oiling limiting valve 1 can be independently replaced by detaching the oiling limiting valve 1 alone under the condition that the oiling limiting valve 1 fails, so that the maintenance cost of a user is greatly reduced; the oil pump oil outlet 34, the oil pump oil return port 35 and the oiling limiting valve interface 33 are arranged on the same side; the diagnosis module mounting groove 36 is arranged at the other side; the effect of this design is: the length of a pipeline between the oil outlet 34 of the oil pump and the oil return port 35 of the oil pump can be shortened, and the problems of fuel oil fluidity, pipeline winding and the like caused by overlong pipelines are avoided; the oil pump flange 3 is provided with the clamping mechanism 32, the corresponding oil filling limiting valve 1 is provided with the clamping caliper 11, the design specifically discloses a specific structural form adopted by clamping between the oil filling limiting valve 1 and the oil pump flange 3, and the clamping device adopting the structural form has good fixing effect, is convenient to disassemble and maintain; a diagnostic module mounting slot 36 is provided on the other side; the diagnostic module 2 is fixed in the diagnostic module mounting groove 36. The technical effect of the scheme is as follows: the diagnosis module 2 can be detachably mounted, and is convenient to maintain and replace; the oil pump flange 3 is offset to solve the problem of insufficient installation height.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.
Claims (10)
1. An electronic fuel pump assembly convenient to maintain is characterized by comprising an oil filling limiting valve, an oil pump flange, an oil pump core and an oil pump oil barrel; the oil pump flange and the oil pump oil barrel are distributed in an offset mode, and the center line of the oil pump flange is separated from the center line of the oil pump oil barrel; the oiling limiting valve is fixed on the oil pump flange in a clamping manner; the bottom surface of the oil pump flange is provided with a circular baffle ring and a clamping mechanism; the corresponding oiling limiting valve is provided with clamping calipers matched with the clamping mechanism; one end of the oil pump core is connected with the oil pump oil barrel, the other end of the oil pump core is connected with the oil pump flange, and the oil pump core is ventilated through the oil filling limiting valve to limit the oil filling amount.
2. The electronic fuel pump assembly for ease of maintenance as set forth in claim 1, wherein said fuel fill limit valve is offset from said fuel pump flange.
3. The electronic fuel pump assembly convenient for maintenance of claim 1, wherein the fuel pump flange is provided with a fuel pump plug port, and the fuel pump core is fixed on the fuel pump flange through the fuel pump plug port.
4. The electronic fuel pump assembly convenient for maintenance of claim 1, wherein an oil pump outlet, an oil pump return port, an oiling limit valve interface, a diagnostic module mounting groove are provided on the top end face of the oil pump flange; the oil pump oil outlet, the oil pump oil return opening and the oiling limiting valve interface are arranged on the same side; the diagnosis module mounting groove is arranged on the other side.
5. The electronic fuel pump assembly for ease of maintenance as set forth in claim 4, further comprising a diagnostic module integrally secured to the fuel pump flange and secured in the diagnostic module mounting slot.
6. The electronic fuel pump assembly for ease of maintenance as set forth in claim 4, wherein said diagnostic module mounting slot is in the form of a bayonet configuration.
7. The electronic fuel pump assembly convenient for maintenance of claim 1, wherein a float assembly is connected to one side of the fuel drum.
8. The electronic fuel pump assembly convenient to maintain as claimed in claim 1, wherein a chassis is further arranged above the fuel tank, clamping pieces are arranged on two sides of the chassis, and a clamping cavity is arranged on the corresponding fuel tank; the card is matched with the card cavity.
9. The electronic fuel pump assembly for ease of maintenance of claim 1, wherein the bottom end of the fill limit valve is lower than the top end of the canister pump.
10. The electronic fuel pump assembly for facilitating maintenance of claim 7, wherein the float assembly is formed by a plurality of floats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586945.4U CN210195911U (en) | 2019-04-26 | 2019-04-26 | Electronic fuel pump assembly convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586945.4U CN210195911U (en) | 2019-04-26 | 2019-04-26 | Electronic fuel pump assembly convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210195911U true CN210195911U (en) | 2020-03-27 |
Family
ID=69882150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920586945.4U Active CN210195911U (en) | 2019-04-26 | 2019-04-26 | Electronic fuel pump assembly convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210195911U (en) |
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2019
- 2019-04-26 CN CN201920586945.4U patent/CN210195911U/en active Active
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| GR01 | Patent grant | ||
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Address after: 402247 Shuangfu Industrial Park, Jiangjin District, Chongqing Patentee after: Sinotruk (Chongqing) Light Vehicle Co.,Ltd. Address before: 402247 Shuangfu Industrial Park, Jiangjin District, Chongqing Patentee before: WEICHAI (CHONGQING) AUTOMOBILE Co.,Ltd. |