CN218971321U - Fuel pump assembly - Google Patents
Fuel pump assembly Download PDFInfo
- Publication number
- CN218971321U CN218971321U CN202223609926.XU CN202223609926U CN218971321U CN 218971321 U CN218971321 U CN 218971321U CN 202223609926 U CN202223609926 U CN 202223609926U CN 218971321 U CN218971321 U CN 218971321U
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel
- storage barrel
- pressure regulator
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 121
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 210000001503 joint Anatomy 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 15
- 239000002828 fuel tank Substances 0.000 claims description 12
- 238000003032 molecular docking Methods 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims 3
- 239000003921 oil Substances 0.000 description 227
- 238000007789 sealing Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 8
- 230000001502 supplementing effect Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The application discloses a fuel pump assembly includes: the oil storage barrel and the flange plate are erected on the oil storage barrel through a support column, and an oil outlet component is arranged on the flange plate and is used for being communicated with a fuel engine; the oil pump comprises an oil storage barrel, a pump core assembly, an oil return pipe, an oil pump tee joint, an oil supply pipe, an oil outlet component and an oil return pipe, wherein the pump core assembly is arranged in the oil storage barrel and is provided with an oil pump port; the oil pressure regulator is arranged on the oil storage barrel, the oil return pipe is communicated with the oil pressure regulator, a nozzle is communicated with the oil pressure regulator, the nozzle faces into the oil storage barrel, and the oil pressure regulator ejects oil in the oil pressure regulator from the nozzle under the condition that the pressure in the oil return pipe exceeds the preset oil pressure.
Description
Technical Field
The application belongs to the technical field of vehicle accessories, and particularly relates to a fuel pump assembly.
Background
The fuel pump is an automobile accessory and is one of the basic components of the fuel injection system of the electronic injection automobile. The fuel pump is positioned in the fuel tank of the vehicle, and is used for sucking fuel from the fuel tank, pressurizing and then delivering the fuel to the fuel supply pipe, and establishing certain fuel pressure in cooperation with the fuel pressure regulator.
In the prior art, an oil return system is arranged in the fuel pump, and during testing, the fuel supplied by the pump core assembly to the fuel engine can be completely returned to the oil storage barrel in the oil return system, so that the flow rate passing through the oil pressure regulator is equal to the flow rate supplied by the pump core assembly to the fuel engine. However, the fuel engine may use a portion of the fuel when the vehicle is actually traveling, and the flow of the returned fuel through the fuel regulator may be less than the flow of fuel supplied to the fuel engine by the pump core assembly. When the vehicle is running at high speed and full load, the fuel consumption of the fuel engine is high, and the returned fuel is much less through the fuel pressure regulator. The performance of the fuel pump in the production test stage is different from that of the fuel pump in practical application. Since the pressure of the fuel pressure regulator is reduced due to the reduction of the flow rate, the pressure reduction is more obvious as the flow rate is reduced, so that the fuel pressure supplied by the fuel pump to the engine is much lower than that of the fuel pressure supplied by the fuel pump to the engine during test at a high speed, the vehicle acceleration performance is reduced, and the driving of a user is affected.
There is a need for improved fuel pump assembly constructions.
Disclosure of Invention
It is an object of embodiments of the present application to provide a fuel pump assembly to improve the operational stability of a fuel pump.
According to an embodiment of the present application, there is provided a fuel pump assembly including:
the oil storage barrel and the flange plate are erected on the oil storage barrel through a support column, and an oil outlet component is arranged on the flange plate and is used for being communicated with a fuel engine;
the oil pump comprises an oil storage barrel, a pump core assembly, an oil return pipe, an oil pump tee joint, an oil supply pipe, an oil outlet component and an oil return pipe, wherein the pump core assembly is arranged in the oil storage barrel and is provided with an oil pump port;
the oil pressure regulator is arranged on the oil storage barrel, the oil return pipe is communicated with the oil pressure regulator, the oil pressure regulator is configured to at least limit the oil pressure in the oil return pipe, a nozzle is communicated with the oil pressure regulator, the nozzle faces into the oil storage barrel, and the oil pressure regulator ejects oil in the oil pressure regulator from the nozzle under the condition that the pressure in the oil return pipe exceeds the preset oil pressure.
Optionally, the fuel pump assembly is configured to perform pressure flow testing at a maximum pump oil volume.
Optionally, the oil pump tee joint is provided with a lower pipe, and a butt joint pipe orifice is arranged at the oil pump port;
an annular baffle is formed on the lower pipe;
a clamping groove is formed on the butt joint pipe orifice, and the annular baffle table corresponds to the clamping groove in position;
the clamping groove is provided with a three-way clamping spring, and the three-way clamping spring and the top surface of the annular baffle table form a clamping relationship so that the lower pipe is fixed in the butt joint pipe orifice.
Optionally, a tee joint sealing ring is sleeved on the lower pipe, a bulge is arranged on the outer surface of the tee joint sealing ring, and interference fit is formed between the lower pipe and the butt joint pipe orifice of the tee joint sealing ring.
Optionally, an arc-shaped wall surface is formed in the oil storage barrel, and the nozzle faces the arc-shaped wall surface.
Optionally, the nozzle is an injection connection pipe, the bottom of the oil storage barrel is provided with an opening, and the oil storage barrel is configured to extend into the oil tank so that the opening is immersed in oil in the oil tank;
the injection connecting pipe is positioned at the opening.
Optionally, the caliber of the injection connecting pipe is between 0.2mm and 2.5 mm.
Optionally, the caliber of the injection connecting pipe is between 1.2mm and 1.6 mm.
Optionally, the support column is fixedly connected with the flange plate, a sliding fit relationship is formed between the support column and the oil storage barrel, and the oil storage barrel and the flange plate are configured to be capable of adjusting relative positions along the height direction of the support column.
Optionally, be provided with the fixed slot on the oil storage bucket, the oil pressure regulator with the spout inlays and establishes in the fixed slot, peg graft on the fixed slot and have the regulator jump ring, the regulator jump ring will the oil pressure regulator joint is fixed in the fixed slot.
The technical effect of this application embodiment lies in, and the fuel pump assembly can keep unanimous for the fuel that the fuel engine provided when test and vehicle in-service use. The operational stability of the fuel pump assembly is improved. Errors between testing and actual use of the fuel pump assembly are reduced.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic structural view of a fuel pump assembly in an embodiment of the present application;
FIG. 2 is a schematic structural view of a flange in an embodiment of the present application;
FIG. 3 is a schematic view of a structure of a tank according to an embodiment of the present application;
FIG. 4 is an exploded view of a reservoir in an embodiment of the present application;
FIG. 5 is a cross-sectional view of an injection port in an embodiment of the present application;
FIG. 6 is an exploded schematic view of a pump core assembly in an embodiment of the present application;
fig. 7 is a cross-sectional view of a three-way seal in an embodiment of the present application.
Reference numerals illustrate: a fuel pump assembly 100; an oil storage barrel 1; an arc-shaped wall surface 11; an opening 12; a fixing groove 13; a flange plate 2; an oil outlet member 21; a plug-in interface 22; a ventilation interface 23; a pump core assembly 3; an oil pump port 31; a docking nozzle 32; a clamping groove 321; an oil supply pipe 33; an oil return pipe 34; an oil pump tee 4; a lower pipe 41; a three-way seal ring 42; a protrusion 421; three-way snap springs 43; an oil pressure regulator 5; an injection connection pipe 51; caliber 511; a regulator snap spring 52; a support column 6; an oil pump harness 7.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
There is provided in accordance with an embodiment of the present application a fuel pump assembly 100 comprising:
the oil storage barrel comprises an oil storage barrel 1 and a flange plate 2, wherein the flange plate 2 is erected on the oil storage barrel 1 through a support column 6, an oil outlet component 21 is arranged on the flange plate 2, and the oil outlet component 21 is used for being communicated with a fuel engine;
the oil storage barrel comprises an oil storage barrel 1, a pump core assembly 3, an oil pump tee joint 4, an oil supply pipe 33, an oil return pipe 34, an oil return pipe 33, an oil return pipe 21, an oil pump tee joint 4 and an oil pump assembly 3, wherein the pump core assembly 3 is arranged in the oil storage barrel 1, the oil pump port is formed in the pump core assembly 3, the oil pump tee joint 4 is connected to the oil pump port, one end of the oil pump tee joint 4 is connected with the oil supply pipe 33, the oil supply pipe 33 extends upwards and is communicated with the oil outlet part 21, and the other end of the oil pump tee joint 4 is connected with the oil return pipe 34;
the oil pressure regulator 5, the oil pressure regulator 5 is arranged on the oil storage barrel 1, the oil return pipe 34 is communicated with the oil pressure regulator 5, the oil pressure regulator 5 is configured to limit the oil pressure in the oil return pipe 34 at least, a nozzle is communicated with the oil pressure regulator 5, the nozzle faces into the oil storage barrel 1, and the oil pressure regulator 5 ejects oil in the oil pressure regulator from the nozzle under the condition that the pressure in the oil return pipe 34 exceeds the preset oil pressure.
As shown in fig. 1, the fuel pump assembly 100 includes a fuel tank 1 and a flange 2, the fuel tank 1 and the flange 2 are connected by a support column 6, one end of the support column 6 is fixed at the bottom of the flange 2, the other end of the support column 6 is slidably connected with the fuel tank 1, and the fuel tank 1 can move up and down on the support column 6. An oil outlet component 21 is arranged at the top of the flange plate 2, an oil outlet of the oil outlet component 21 is communicated with the fuel engine, and an oil inlet of the oil outlet component 21 is communicated with the oil storage barrel 1, wherein oil in the oil storage barrel 1 enters the fuel engine through the oil outlet component 21.
As shown in fig. 1, the fuel pump assembly 100 further includes a pump core assembly 3, wherein the pump core assembly 3 is disposed in the oil storage barrel 1, an oil pumping port is formed at an upper end portion of the pump core assembly 3, that is, a position near an upper end of the oil storage barrel 1, an oil pump tee 4 is disposed at the oil pumping port, one port of the oil pump tee 4 is communicated with the oil supply pipe 33, and the other end of the oil supply pipe 33 is communicated with an oil inlet of the oil outlet component 21. That is, the oil in the oil storage tank 1 can be discharged from the pump inlet through the pump core assembly 3 and can be supplied to the oil discharge part 21 through the oil supply pipe 33, thereby being introduced into the fuel engine to supply the oil to the fuel engine. The other port of the three-way valve 4 of the oil pump is communicated with oil return, and the oil finally returns to the inside of the oil storage tank through an oil return pipe 34.
As shown in fig. 1, the fuel pump assembly 100 further includes a fuel pressure regulator 5, and the fuel pressure regulator 5 is disposed at a position near the bottom of the side of the fuel tank 1. The oil return pipe 34 extends downward, one of the ports communicates with the oil pressure regulator 5, and the returned oil flows first to the oil pressure regulator 5 through the oil return pipe 34. The oil pressure regulator 5 functions to regulate the pressure of the oil supply, that is, in the case where the pressure in the oil return pipe 34 exceeds the preset oil pressure, the oil pressure regulator 5 ejects the oil therein from the nozzle and finally flows back into the oil reservoir tank 1.
Further, the fuel of the fuel engine supplied by the pump core assembly 3 is divided into two paths by the pump tee 4, wherein the first path is supplied to the fuel engine through the fuel supply pipe 33, and the second path is returned to the fuel storage tank 1 through the fuel pressure regulator 5 through the fuel return pipe 34. The oil in the first path returns to the oil storage barrel 1 without passing through the fuel engine directly returns to the oil storage barrel 1 in the oil return pipe 34 of the oil pump tee 4, wherein the oil return pipe 34 is shorter, that is, the oil return time is shorter, so that the oil return efficiency can be improved. And the oil in the oil return pipe 34 can be completely returned to the oil storage barrel 1 without passing through the fuel engine, so that the pressure of the fuel pump assembly 100 is not reduced to a test value in actual use, and the acceleration performance of the vehicle is not reduced.
Optionally, the fuel pump assembly 100 is configured to perform pressure flow testing at a maximum pump oil volume.
Further, during testing of the fuel pump assembly 100, the fuel supplied by the pump core assembly 3 is split into two paths by the fuel pump tee 4, the first path is supplied to the fuel engine, the fuel in the first path is discharged according to the maximum fuel consumption of the fuel engine, and the second path returns to the fuel storage barrel 1 through the fuel pressure regulator 5. Since fuel has been discharged during the test at the first route according to the maximum fuel consumption of the fuel engine, the fuel passing through the fuel pressure regulator 5 during the test is the minimum amount of fuel. While the vehicle is running, the fuel engine uses a part of fuel, and the fuel consumption of the fuel engine is lower than the maximum fuel consumption of the fuel engine no matter how much, so the fuel passing through the fuel pressure regulator 5 is always far greater than the fuel passing through the fuel pressure regulator 5 during testing. Therefore, the fuel pressure supplied from the fuel pump assembly 100 to the fuel engine during running of the vehicle is never smaller than the pressure during testing, that is, the pressure of the fuel pump assembly 100 that is tested is not reduced to the test value during actual use, so that the acceleration performance of the vehicle is not reduced.
Optionally, the oil pump tee 4 is provided with a lower pipe 41, and the oil pump port 31 is provided with a butt joint pipe orifice 32;
an annular baffle is formed on the lower pipe 41;
a clamping groove 321 is formed on the butt joint pipe orifice 32, and the annular baffle corresponds to the clamping groove 321 in position;
the clamping groove 321 is provided with a three-way clamping spring 43, and the three-way clamping spring 43 and the top surface of the annular baffle table form a clamping relationship so that the lower pipe 41 is fixed in the butt joint pipe orifice 32.
As shown in fig. 6, the oil pump tee 4 has a lower pipe 41 extending downward, a butt joint pipe is opened at the oil pump port 31, and the lower pipe 41 is communicated with the butt joint pipe port 32, so that the communication relationship between the pump core group price and the oil pump tee 4 is realized. Two clamping grooves 321 are formed on the butt joint pipe orifice 32, and the direction of the clamping grooves 321 is perpendicular to the direction of the butt joint pipe orifice 32. An annular baffle is formed on the lower pipe 41, the position of the annular baffle corresponds to the position of the clamping groove 321, when the lower pipe 41 is inserted into the butt joint pipe orifice 32, the position of the clamping groove 321 is just at the upper surface of the annular baffle, and after the three-way clamp spring 43 is inserted into the clamping groove 321, the three-way clamp spring 43 can be clamped at the upper surface of the annular baffle, so that the lower pipe 41 is fixed inside the butt joint pipe orifice 32.
Optionally, a three-way sealing ring 42 is sleeved on the lower pipe 41, a protrusion 421 is provided on the outer surface of the three-way sealing ring 42, and an interference fit is formed between the lower pipe 41 and the butt joint pipe orifice 32 by the three-way sealing ring 42.
As shown in fig. 6, a three-way sealing ring 42 is further sleeved on the lower pipe 41, the three-way sealing ring 42 is sleeved on the pipe wall at the lower end of the annular baffle, and the outer wall of the three-way sealing ring 42 is in contact with the inner wall of the butt joint pipe orifice 32, so that the sealing between the oil pump three-way 4 and the oil pump port 31 is realized. As shown in fig. 7, the outer wall of the three-way sealing ring 42 is provided with a protrusion 421, when the three-way sealing ring 42 contacts with the inner wall of the butt joint pipe orifice 32, because the outer wall of the three-way sealing ring 42 is provided with the protrusion 421, an interference fit is formed between the three-way sealing ring 42 and the butt joint pipe orifice 32, and further, the sealing between the oil pump three-way 4 and the oil pump port 31 is more reliable.
Optionally, an arc-shaped wall surface 11 is formed in the oil storage barrel 1, and the nozzle faces the arc-shaped wall surface 11.
The arc-shaped wall surface 11 is formed on the oil storage barrel 1, the arc-shaped wall surface 11 is formed inside the oil storage barrel 1, the spraying position of the nozzle is the arc-shaped wall surface 11 in the oil storage barrel 1, and the oil is sprayed on the arc-shaped wall surface 11, so that the spraying noise can be reduced.
Optionally, the nozzle is an injection connection pipe 51, an opening 12 is formed at the bottom of the oil storage barrel 1, and the oil storage barrel 1 is configured to extend into the oil tank so that the opening 12 is immersed in oil in the oil tank;
the ejector connection piece 51 is located at the opening 12.
As shown in fig. 3 and 4, an opening 12 is formed at a position near the bottom of the side edge of the oil storage tank 1, and an injection connection pipe 51 is provided at the opening 12. Wherein the bottom of the oil storage tank 1 extends into the oil tank, and the position from the bottom of the oil storage tank 1 to the opening 12 is immersed in the oil tank. The other end of the injection connecting pipe 51 is communicated with the oil return pipe 34, oil flowing back through the oil return pipe 34 is injected to the opening 12 through the injection connecting pipe 51, and part of the oil in the oil tank can be splashed into the oil storage barrel 1 through the oil pressure during injection of the injection connecting pipe 51, so that the effect of supplementing the oil to the oil storage barrel 1 is realized.
Optionally, the orifice 511 of the ejector nozzle 51 is between 0.2mm and 2.5 mm.
As shown in FIG. 5, the caliber 511 of the injection connection pipe 51 is selected to be between 0.2mm and 2.5mm, wherein the caliber 511 of the injection connection pipe 51 is the leftmost small caliber 511. If the caliber 511 of the injection connecting pipe 51 is larger, the injection connecting pipe 51 cannot achieve the injection effect, so that the oil in the oil tank cannot be splashed into the oil storage barrel 1, and the effect of supplementing the oil to the oil storage barrel 1 cannot be achieved. If the caliber 511 of the injection connecting pipe 51 is smaller, the injection connecting pipe 51 can achieve the injection effect, but because the caliber 511 is smaller, the oil in the oil tank is splashed into the oil storage barrel 1 to be limited, that is, the oil which is supplemented into the oil storage barrel 1 is limited, so that the effect of supplementing the oil cannot be achieved. Therefore, the caliber 511 of the injection connecting pipe 51 is set between 0.2mm and 2.5mm, the injection effect can be just realized, and the oil in the oil tank can be splashed into the oil storage barrel 1 to realize the fluid supplementing effect.
Optionally, the orifice 511 of the ejector nozzle 51 is between 1.2mm and 1.6 mm.
As shown in FIG. 5, the diameter 511 of the ejector adapter 51 is selected to be between 1.2mm and 1.6 mm. Preferably, the caliber 511 of the injection connecting pipe 51 is 1.4mm, the caliber 511 of 1.4mm can just enable the injection connecting pipe 51 to achieve the injection effect, and after the injection connecting pipe 51 is injected, the splashed oil is supplemented into the oil storage barrel 1, and the capacity of the oil required in the oil storage barrel 1 is just the supplemented oil, so that the caliber 511 of 1.4mm is selected optimally. The ejector connection pipe 51 with other calibers 511 can be selected according to actual conditions.
Optionally, the support column 6 is fixedly connected with the flange 2, a sliding fit relationship is formed between the support column 6 and the oil storage barrel 1, and the oil storage barrel 1 and the flange 2 are configured to be capable of adjusting relative positions along the height direction of the support column 6.
As shown in fig. 1, the support column 6 is fixedly connected with the flange 2, the support column 6 is slidably connected with the oil storage barrel 1, and the oil storage barrel 1 can move up and down on the support column 6. Preferably, two support columns 6 are connected between the oil storage barrel 1 and the flange plate 2, and the two support columns 6 are respectively arranged at two opposite positions, so that the balance between the oil storage barrel 1 and the flange plate 2 can be kept.
Optionally, a fixing groove 13 is formed in the oil storage barrel 1, the oil pressure regulator 5 and the nozzle are embedded in the fixing groove 13, a regulator clamp spring 52 is inserted in the fixing groove 13, and the regulator clamp spring 52 is used for clamping and fixing the oil pressure regulator 5 in the fixing groove 13.
As shown in fig. 3 and 4, a fixing groove 13 is provided at a position of the side edge of the oil storage tank 1 near the bottom, and the oil pressure regulator 5 is fixed in the fixing groove 13, wherein the shape of the fixing groove 13 is adapted to the shape of the oil pressure regulator 5. The clamping table is arranged on the oil pressure regulator 5, the clamping groove 321 is arranged in the fixing groove 13, the position of the clamping table is matched with the position of the clamping groove 321, when the oil pressure regulator 5 is arranged in the fixing groove 13, the regulator clamp spring 52 is inserted into the clamping groove 321, and the regulator clamp spring 52 fixes the oil pressure regulator 5 in the fixing groove 13.
As shown in fig. 1 and 2, the upper portion of the flange plate 2 is further provided with an electrical interface 22, the upper end of the pump core assembly 3 is provided with an oil pump wire harness 7, one end of the oil pump wire harness 7 is connected with the pump core assembly 3, the other end of the oil pump wire harness 7 extends upwards to be connected with the electrical interface 22, and the electrical interface 22 is connected with a power supply. When the electrical interface 22 is energized, power can be provided to the pump core assembly 3.
As shown in fig. 2, a vent port 23 is provided at the upper portion of the flange 2, and the vent port 23 is connected to the fuel evaporation line.
Working principle of oil pump assembly: after the electric plug-in connector 22 on the flange plate 2 is electrified, the pump core assembly 3 is electrified and supplied with oil through the oil pump wire harness 7, and the fuel oil is divided into two paths through the oil pump tee joint 4. The first fuel is supplied to the fuel engine through the fuel supply pipe 33 and the flange 2, and then from the fuel outlet member 21 on the flange 2. Only one of the oil outlet members 21 on the flange 2 has no oil return member, so that the fuel engine consumes an amount of fuel equal to the amount of fuel supplied by the fuel pump assembly 100. The second fuel enters the oil pressure regulator 5 through the oil return pipe 34 and the opening 12 on the oil storage barrel 1, then enters the oil storage barrel 1 through the oil return injection connecting pipe 51, and meanwhile, the fuel in the oil tank is injected into the oil storage barrel 1.
Although specific embodiments of the present application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. A fuel pump assembly, comprising:
the oil storage barrel and the flange plate are erected on the oil storage barrel through a support column, and an oil outlet component is arranged on the flange plate and is used for being communicated with a fuel engine;
the oil pump comprises an oil storage barrel, a pump core assembly, an oil return pipe, an oil pump tee joint, an oil supply pipe, an oil outlet component and an oil return pipe, wherein the pump core assembly is arranged in the oil storage barrel and is provided with an oil pump port;
the oil pressure regulator is arranged on the oil storage barrel, the oil return pipe is communicated with the oil pressure regulator, the oil pressure regulator is configured to at least limit the oil pressure in the oil return pipe, a nozzle is communicated with the oil pressure regulator, the nozzle faces into the oil storage barrel, and the oil pressure regulator ejects oil in the oil pressure regulator from the nozzle under the condition that the pressure in the oil return pipe exceeds the preset oil pressure.
2. The fuel pump assembly of claim 1, wherein the fuel pump assembly is configured to perform a pressure flow test at a maximum pump oil amount.
3. The fuel pump assembly of claim 1, wherein the oil pump tee has a lower tube, the oil pump port having a docking nozzle;
an annular baffle is formed on the lower pipe;
a clamping groove is formed on the butt joint pipe orifice, and the annular baffle table corresponds to the clamping groove in position;
the clamping groove is provided with a three-way clamping spring, and the three-way clamping spring and the top surface of the annular baffle table form a clamping relationship so that the lower pipe is fixed in the butt joint pipe orifice.
4. The fuel pump assembly of claim 3, wherein the down tube is sleeved with a three-way seal, the exterior surface of the three-way seal has a protrusion, and an interference fit is formed between the down tube and the docking nozzle of the three-way seal.
5. The fuel pump assembly of claim 1, wherein the fuel tank has an arcuate wall formed therein, the nozzle opening facing the arcuate wall.
6. The fuel pump assembly of claim 5, wherein the nozzle is an injection nipple, the bottom of the oil reservoir having an opening, the oil reservoir configured to extend into the fuel tank such that the opening is immersed in the fuel tank;
the injection connecting pipe is positioned at the opening.
7. The fuel pump assembly of claim 6, wherein the ejector nipple has a bore of between 0.2mm and 2.5 mm.
8. The fuel pump assembly of claim 7, wherein the ejector nipple has a bore of between 1.2mm and 1.6 mm.
9. The fuel pump assembly of claim 1, wherein the support post is fixedly connected to the flange, the support post and the fuel tank being in a sliding fit relationship, the fuel tank and the flange being configured to adjust relative position along a height of the support post.
10. The fuel pump assembly of claim 1, wherein the oil storage barrel is provided with a fixing groove, the oil pressure regulator and the nozzle are embedded in the fixing groove, a regulator clamp spring is inserted in the fixing groove, and the regulator clamp spring is used for clamping and fixing the oil pressure regulator in the fixing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223609926.XU CN218971321U (en) | 2022-12-30 | 2022-12-30 | Fuel pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223609926.XU CN218971321U (en) | 2022-12-30 | 2022-12-30 | Fuel pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971321U true CN218971321U (en) | 2023-05-05 |
Family
ID=86153553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223609926.XU Active CN218971321U (en) | 2022-12-30 | 2022-12-30 | Fuel pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971321U (en) |
-
2022
- 2022-12-30 CN CN202223609926.XU patent/CN218971321U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3820949B2 (en) | Fuel supply device with transfer pump | |
| US9850865B2 (en) | Fuel supply device | |
| CN101384814B (en) | Fuel supply device | |
| CN102312762B (en) | Pressure relief valve and high pressure pump with such valve | |
| US20100202898A1 (en) | Jet pump assembly | |
| US9528478B2 (en) | Fuel feeding system for vehicle | |
| CN102966474B (en) | Fuel pump module | |
| JP2005226641A (en) | Fuel transfer device | |
| WO2009111521A2 (en) | Fuel pump module having a direct mounted jet pump and methods of assembly | |
| CN109812361B (en) | Vehicle fuel pump module including improved jet pump assembly | |
| CN106232975A (en) | Fuel hauling equipment for saddle container | |
| WO2008105721A1 (en) | Fuel tank arrangement for a vehicle | |
| CN218971321U (en) | Fuel pump assembly | |
| CN103830955A (en) | Filter Top shell,filter and method for manufacturing a filter top shell | |
| CN109812362B (en) | Vehicle fuel pump module including improved jet pump assembly | |
| US8096780B2 (en) | Single piece dual jet pump and fuel system using it | |
| CN215890272U (en) | Fuel supply device for fuel pump | |
| CN216447031U (en) | Injection loop electronic injection fuel pump assembly | |
| US20160102683A1 (en) | Jet pump, manufacturing method of jet pump, and fuel supply device having jet pump | |
| CN212202304U (en) | Injection oil return assembly of fuel pump | |
| US11008987B2 (en) | Venturi fluid pump with outlet flow controller | |
| CN211853480U (en) | Oil supply system suitable for plunger pump pressure oil source | |
| CN210660382U (en) | Fuel pump integrating siphon structure and jet structure | |
| CN104712473B (en) | Fuel service system and corresponding automobile | |
| CN209159416U (en) | It can be accurately adjusted the built-in combination valve for closing height on automotive oil tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240116 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: Zhengzhou BYD Automobile Co.,Ltd. Address before: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee before: BYD Co.,Ltd. |