CN220134080U - Front and rear end double-injection structure of brushless fuel pump - Google Patents
Front and rear end double-injection structure of brushless fuel pump Download PDFInfo
- Publication number
- CN220134080U CN220134080U CN202321330818.0U CN202321330818U CN220134080U CN 220134080 U CN220134080 U CN 220134080U CN 202321330818 U CN202321330818 U CN 202321330818U CN 220134080 U CN220134080 U CN 220134080U
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- oil
- pump
- fuel pump
- injection
- cover
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- 238000002347 injection Methods 0.000 title claims abstract description 60
- 239000007924 injection Substances 0.000 title claims abstract description 60
- 239000000446 fuel Substances 0.000 title claims abstract description 36
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 97
- 239000000295 fuel oil Substances 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model provides a front and rear end double-injection structure of a brushless fuel pump, which is characterized by comprising the following components: the bottom shell is internally provided with an inner support, the inner support is connected with an upper cover, an oil pump, a filter screen and a filter are arranged in the inner support, the filter screen is arranged on one side of the oil pump and is communicated with the oil pump, and the oil pump is provided with an end cover and a rear cover; the support rod is arranged between the inner bracket and the upper cover and plays a role in connection and support; the injection assembly is arranged on the end cover and the rear cover of the oil pump; the injection assembly is arranged on the end cover and the rear cover of the oil pump, and can simultaneously inject and drive oil absorption.
Description
Technical Field
The utility model relates to a front and rear end double-injection structure of a brushless fuel pump.
Background
The fuel pump assembly of the automobile is one of the basic components of an automobile fuel injection system, the existing fuel pump assembly consists of an upper cover assembly, a corrugated pipe, an oil outlet double-injection assembly, an oil storage barrel assembly, a pump core support, a support rod, a support spring, a wire harness assembly, a siphon assembly and other parts, and the functions are that fuel is sucked out of a fuel tank, a fuel pressure regulating valve is synchronously matched to establish certain fuel pressure, and the fuel is conveyed into an oil supply pipeline after being pressurized, so that an engine normally works.
The oil outlet double-injection oil return component in the fuel pump assembly has the effects of pushing pipeline fuel to an injection small hole with the diameter suddenly reduced, the injection small hole is opposite to an oil return port, an injection cavity is arranged between the injection hole and the oil return port, one side of the injection cavity is communicated with a siphon pipeline, and the high-pressure flow of the extremely-fast injection forms a siphon effect so as to drive a fuel medium in an auxiliary fuel tank to enter a main fuel tank more effectively and rapidly, thereby meeting the fuel supply requirement of an engine.
The dual injection structure for the brushless fuel pump in the prior art still has certain defects in practical application, such as: most of injection assemblies in the existing market are arranged near an oil outlet of an oil pump, and can only realize single-tube siphon injection, so that the requirements of oil outlet of a pipeline and siphon oil return can not be met.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and provides a front-end and rear-end double-injection structure of a brushless fuel pump, wherein injection assemblies of the front-end and rear-end double-injection structure are arranged on an end cover and a rear cover of the fuel pump and can simultaneously inject and drive oil absorption.
The aim of the utility model can be achieved by the following technical scheme: a front and rear dual injection structure for a brushless fuel pump, comprising:
the bottom shell is internally provided with an inner support, the inner support is connected with an upper cover, an oil pump, a filter screen and a filter are arranged in the inner support, the filter screen is arranged on one side of the oil pump and is communicated with the oil pump, and the oil pump is provided with an end cover and a rear cover;
a support bar arranged between the inner bracket and the upper cover;
the injection assembly is arranged on the end cover and the rear cover of the oil pump;
oil pipe connection is arranged among the oil pump, the filter, the injection assembly and the upper cover.
Further, the lower end of the bottom shell is provided with an oil suction port.
Further, the inner support comprises a clamping block, and the bottom shell is provided with a stop block for preventing the clamping block from falling off.
Furthermore, the end cover of the oil pump is provided with a circuit control end, the end cover and the upper cover of the oil pump are both provided with a power line plug, and the oil pump is connected with the circuit control end through the power line plug. Further, the inner support is provided with a mounting hole for the supporting rod to pass through, the inner support is provided with a collecting pipe, and the upper cover is provided with an oil return pipe inserted into the collecting pipe.
Furthermore, the tail end of the collecting pipe is provided with an inclined plane, and the side surface of the collecting pipe is provided with a square hole.
Further, an oil outlet nozzle is arranged on the oil pump, and an oil inlet corrugated pipe is arranged between the oil outlet nozzle and the filter.
Further, an oil outlet corrugated pipe connected with the upper cover is arranged on the filter.
Further, the jetting assembly includes:
the first jet connector is arranged on the inner bracket and is provided with a first jet end, a connecting port and a first oil inlet, the jet end is arranged downwards, and the first oil inlet is transversely arranged;
the second injection joint is arranged at the rear cover of the oil pump and is communicated with the output end of the rear cover, the second injection joint is provided with a second injection end and a second oil inlet, the second injection end is transversely arranged, and the second oil inlet is connected with the oil suction port of the bottom shell;
the oil pump is provided with a small oil nozzle, and a shunt pipe is arranged between the small oil nozzle and the connecting port.
Compared with the prior art, the utility model has the advantages that: the injection assembly is arranged on the end cover and the rear cover of the oil pump and can simultaneously inject and drive oil absorption
Drawings
FIG. 1 is a schematic overall view of the present utility model;
FIG. 2 is a schematic illustration of the present utility model with the bottom shell removed;
FIG. 3 is a top view of the present utility model
FIG. 4 is a schematic side view of the present utility model;
FIG. 5 is a schematic view of a first spray connection of the present utility model;
FIG. 6 is a schematic view of the side support rod and oil return tube of the present utility model;
FIG. 7 is a schematic diagram of an oil pump;
FIG. 8 is a schematic diagram of the connection position of the latch and the stopper according to the present utility model;
fig. 9 is a schematic view of the bottom end surface of the bottom chassis.
In the figure, 1, an upper cover; 11. a support rod; 112. a mounting hole; 12. inserting a power line; 2. a bottom case; 201. an oil suction port; 202. a clamping block; 203. a stop block; 21 an inner support; 211. an oil inlet corrugated pipe; 212. an oil outlet corrugated pipe; 3. a collection pipe; 31. an oil return pipe; 32. an inclined plane; 33. square holes; 4. an oil pump; 401. an end cap; 402. a rear cover; 41. a filter screen; 42. an oil outlet nozzle; a 43 small oil nozzle; 44. a shunt; 45. a second spray joint; 451. a second injection end; 452. a second oil inlet 5, a filter; 6. a first spray connection; 61. a connection port; 62. a first oil inlet; 63. a first spray end.
Detailed Description
The following is a specific embodiment of the present utility model and a further description of the technical solution of the present utility model is provided with reference to the accompanying drawings.
As shown in fig. 1 to 9, a front and rear dual injection structure of a brushless fuel pump is characterized by comprising:
the bottom shell 2 is internally provided with an inner support 21, the inner support 21 is connected with an upper cover 1, an oil pump 4, a filter screen 41 and a filter 5 are arranged in the inner support 21, the filter screen 41 is arranged on one side of the oil pump 4 and is communicated with the oil pump 4, and the oil pump 4 is provided with an end cover 401 and a rear cover 402;
a support rod 11 arranged between the inner bracket 21 and the upper cover 1 for connection support;
an injection assembly provided on the end cap 401 and the rear cap 402 of the oil pump 4;
oil pipe connection is arranged among the oil pump 4, the filter 5, the injection assembly and the upper cover 1.
An oil suction port 201 is arranged at the lower end of the bottom shell 2.
The inner bracket 21 comprises a clamping block 202, and the bottom shell 2 is provided with a stop block 203 for preventing the clamping block from falling out.
The end cover 401 of the oil pump 4 is provided with a circuit control end, the end cover 401 and the upper cover 1 of the oil pump 4 are both provided with a power line plug 12, and the oil pump 4 is connected with the circuit control end, in particular to be electrically connected with the circuit control end through the power line plug 12.
The inner bracket 21 is provided with a mounting hole 112 for the supporting rod 11 to lean against, the inner bracket 21 is provided with a collecting pipe 3, and the upper cover 1 is provided with an oil return pipe 31 inserted into the collecting pipe 3. The oil in the upper cover 1 can flow back into the oil tank through the oil return pipe 31. The end of the collecting pipe is provided with an inclined plane 32, and the side surface is provided with a square hole 33, so that no noise is generated when fuel oil flows back into the fuel tank.
The oil pump 4 is provided with an oil outlet nozzle 42, and an oil inlet corrugated pipe 211 is arranged between the oil outlet nozzle 42 and the filter 5.
The filter 5 is provided with an oil outlet corrugated pipe 212 connected with the upper cover 1.
The jetting assembly includes:
a first injection joint 6 disposed on the inner bracket 21, the first injection joint 6 having a first injection end 63, a connection port 61, and a first oil inlet 62, the injection end being disposed downward, the first oil inlet 62 being disposed laterally;
the second injection joint 45 is arranged at the rear cover of the oil pump 4 and is communicated with the output end of the rear cover, the second injection joint 45 is provided with a second injection end 451 and a second oil inlet 452, the second injection end 451 is transversely arranged, and the second oil inlet 452 is connected with the oil suction port of the bottom shell 2;
the oil pump 4 is provided with a small oil nozzle 43, and a shunt pipe 44 is arranged between the small oil nozzle 43 and the connecting port 61.
An oil inlet corrugated pipe 211 between the oil outlet nozzle 42 and the filter 5, an oil outlet corrugated pipe 212 connected with the upper cover 1 on the filter 5, a shunt pipe 44 between the small oil nozzle 43 and the connecting port 61, and the three pipelines form an oil pipe structure.
The oil pump 4 sucks fuel oil from the bottom shell 2 through the filter screen 41, a part of the fuel oil is sprayed out from the rear cover of the oil pump 4, and the fuel oil is driven to be brought into the bottom shell 2 from the outside of the bottom shell 2 through the second oil inlet 452 of the second injection joint 45; the other part of fuel is output from a small nozzle 43 of the end cover of the oil pump 4, enters a first injection end 63 of the first injection joint 6 through a shunt pipe 44 and is injected, and the fuel is driven to enter the bottom shell 2 from the auxiliary oil tank through a first oil inlet 62; most of the fuel is output from the oil outlet nozzle 42 of the end cover of the oil pump 4, enters the filter 5 through the oil inlet corrugated pipe 211 for filtering, and is conveyed to the upper cover 1 through the oil outlet corrugated pipe 212, and the rear cover 402 and the two ends of the end cover 401 of the oil pump 4 are simultaneously sprayed to drive oil absorption.
The technical scheme of the utility model provides a solution which is obviously different from the prior art aiming at the technical problem that the prior art solution is too single, and the technical scheme of the utility model does not relate to the same parts as the prior art or can be realized by adopting the prior art, and is not repeated.
The foregoing embodiments have been described in a clear and complete manner, and it is apparent that the embodiments described are merely some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (9)
1. A front and rear dual injection structure for a brushless fuel pump, comprising:
the bottom shell is internally provided with an inner support, the inner support is connected with an upper cover, an oil pump, a filter screen and a filter are arranged in the inner support, the filter screen is arranged on one side of the oil pump and is communicated with the oil pump, and the oil pump is provided with an end cover and a rear cover;
a support bar arranged between the inner bracket and the upper cover;
the injection assembly is arranged on the end cover and the rear cover of the oil pump;
oil pipe connection is arranged among the oil pump, the filter, the injection assembly and the upper cover.
2. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the bottom housing has an oil suction port at a lower end thereof.
3. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the inner bracket comprises a clamping block, and the bottom shell is provided with a stop block for preventing the clamping block from falling out.
4. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the end cap of the fuel pump has a circuit control terminal, the end cap and the upper cap of the fuel pump both have a power cord plug, and the fuel pump is connected to the circuit control terminal through the power cord plug.
5. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the inner bracket has mounting holes for the support rods to pass through, the inner bracket has a collection pipe, and the upper cover has an oil return pipe inserted into the collection pipe.
6. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the oil pump is provided with a nozzle, and an oil inlet bellows is provided between the nozzle and the filter.
7. The front and rear dual injection structure of a brushless fuel pump of claim 1, wherein the filter is provided with a fuel outlet bellows connected to the upper cover.
8. The front-rear dual injection structure of a brushless fuel pump of claim 2, wherein the injection assembly comprises:
the first jet connector is arranged on the inner bracket and is provided with a first jet end, a connecting port and a first oil inlet, the jet end is arranged downwards, and the first oil inlet is transversely arranged;
the second injection joint is arranged at the rear cover of the oil pump and is communicated with the output end of the rear cover, the second injection joint is provided with a second injection end and a second oil inlet, the second injection end is transversely arranged, and the second oil inlet is connected with the oil suction port of the bottom shell;
the oil pump is provided with a small oil nozzle, and a shunt pipe is arranged between the small oil nozzle and the connecting port.
9. The front and rear dual injection structure of a brushless fuel pump of claim 5, wherein the collecting pipe has a slope at its end and square holes at its side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321330818.0U CN220134080U (en) | 2023-05-30 | 2023-05-30 | Front and rear end double-injection structure of brushless fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321330818.0U CN220134080U (en) | 2023-05-30 | 2023-05-30 | Front and rear end double-injection structure of brushless fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134080U true CN220134080U (en) | 2023-12-05 |
Family
ID=88959428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321330818.0U Active CN220134080U (en) | 2023-05-30 | 2023-05-30 | Front and rear end double-injection structure of brushless fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134080U (en) |
-
2023
- 2023-05-30 CN CN202321330818.0U patent/CN220134080U/en active Active
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