Double-pump composite fuel pump assembly
Through the design of the dual-pump composite fuel pump assembly, the problem of insufficient fuel supply on large-displacement models of traditional single-pump fuel pumps is solved, achieving more efficient fuel supply capacity and longer service life.
Patent Information
- Application Number
- CN202422638086.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional single-pump fuel pumps operate at high loads on large-displacement models for a long period of time lead to performance decay or damage, which cannot meet fuel supply needs.
The dual-pump composite fuel pump assembly is designed, and the two pump bodies are distributed left and right, and work together through components such as filter mesh, oil outlet pipe and pressure relief valve to increase the oil supply and control the pressure, and extend the service life.
The dual-pump design meets the fuel supply needs of large-displacement vehicles, reduces the load of a single fuel pump, and extends the service life of the fuel pump.
Smart Images
Figure CN223136298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an improved invention of an automotive fuel pump, in particular to an improved invention of a dual-pump composite fuel pump assembly. Background Art
[0002] Traditional automotive fuel pump assemblies usually adopt a single-pump design. However, when used in large-displacement vehicle models, due to the large demand for fuel supply, the single-pump fuel pump assembly needs to operate at a high load for a long time. Therefore, after working for a period of time, performance attenuation or damage will obviously occur. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a dual-pump composite fuel pump assembly.
[0004] To solve the above technical problem, the utility model is implemented by adopting the following technical solution: The dual-pump composite fuel pump assembly includes a pump body, a top cover, an oil level sensor assembly, and a filter screen. A socket and an oil outlet nozzle are provided at the upper end of the top cover, and a guide rod is provided at the lower end of the top cover. The pump body is arranged to be liftable on the guide rod, and a support spring is provided on the corresponding guide rod. Its characteristics are as follows: There are two pump bodies, which are distributed left and right and are arranged in a matching manner within a pump bracket. A rear cover is provided at the lower end of the pump bracket. The filter screens are respectively connected to the oil inlet ports of the two pump bodies, and a hollow is provided on the corresponding rear cover. The oil outlet ports of the two pump bodies are connected to a tank body. The tank body is provided with a first oil outlet pipe, a second oil outlet pipe, and a third oil outlet pipe. The first oil outlet pipe is connected to an ejector assembly. The second oil outlet pipe and the third oil outlet pipe are respectively connected to two oil inlet ends of a three-way oil nozzle, and a pressure relief valve is connected in series on the third oil outlet pipe. The oil outlet end of the three-way oil nozzle is connected to the oil outlet nozzle through a fourth oil outlet pipe.
[0005] The tank body is composed of two cover bodies respectively covering the upper ends of the two pump bodies and a connecting pipe connecting the two upper covers.
[0006] The first oil outlet pipe, the second oil outlet pipe, the third oil outlet pipe, and the fourth oil outlet pipe are all corrugated pipes, and a metal protection net is provided outside the corrugated pipes.
[0007] The beneficial effect of the utility model is that the improved dual-pump composite fuel pump assembly, by having two fuel pumps working simultaneously, not only meets the fuel supply demand of the fuel pump system but also reduces the load problem of a single fuel pump, and can effectively extend the service life of the fuel pump. Brief Description of the Drawings
[0008] The following further details the specific implementation manners of the utility model with reference to the drawings.
[0009] Figure 1 It is a structural schematic diagram of the utility model.
[0010] Figure 2 This is another view of the structure of the present utility model. Detailed implementation manners
[0011] The attached drawings show the structure of the present utility model. The relevant details will be further described below in conjunction with the attached drawings. In this embodiment, referring to the attached Figure 1-2 , the double-pump composite fuel pump assembly includes a pump body 12, a top cover 1, an oil level sensor assembly 8 and a filter screen 11. A socket 2 and an oil outlet nozzle 7 are provided at the upper end of the top cover 1, and a guide rod 3 is provided at the lower end of the top cover 1. The pump body 12 is arranged to be liftable on the guide rod 3, and a support spring 5 is correspondingly arranged on the guide rod 3. There are two pump bodies 12, and the two pump bodies 12 are distributed left and right and are arranged in a matching manner in the pump bracket 9. A rear cover 10 is arranged at the lower end of the pump bracket 9. The filter screen 11 is respectively connected to the oil inlet ports of the two pump bodies 12, and a hollow is provided on the corresponding rear cover 10. The oil outlet ports of the two pump bodies 12 are connected to the tank body 6. The tank body 6 is provided with a first oil outlet pipe 15, a second oil outlet pipe 16 and a third oil outlet pipe 17. The first oil outlet pipe 15 is connected to the ejector assembly 4. The second oil outlet pipe 16 and the third oil outlet pipe 17 are respectively connected to the two oil inlet ends of the three-way oil nozzle 14, and a pressure relief valve 13 is connected in series on the third oil outlet pipe 17. The oil outlet end of the three-way oil nozzle 14 is connected to the oil outlet nozzle through a fourth oil outlet pipe 18.
[0012] The working principle of the present utility model is that the two pump bodies 12 work simultaneously to send the oil in the oil storage barrel to the tank body in sequence through the filter screen 11, the oil inlet port, the pump body 12 and the oil outlet port, and then converge at the three-way oil nozzle 14 through the second oil outlet pipe 16 and the third oil outlet pipe 17, and finally are sent to the oil outlet nozzle through the fourth oil outlet pipe 18. The ejector assembly 4 on the first oil outlet pipe 15 plays an ejecting role, and the pressure relief valve 13 on the third oil outlet pipe 17 is used to control the oil outlet pressure; the two pump bodies 12 work simultaneously to increase the oil supply volume to meet the oil supply demand.
[0013] As a further improved detailed implementation manner, the tank body 6 is composed of two cover bodies respectively covering the upper ends of the two pump bodies 12 and a connecting pipe connecting the two upper covers to match and dock the oil outlets of the two pump bodies 12.
[0014] As a further improved detailed implementation manner, the first oil outlet pipe 15, the second oil outlet pipe 16, the third oil outlet pipe 17 and the fourth oil outlet pipe 18 are all corrugated pipes, and a metal protective net is sleeved outside the corrugated pipes to prevent the corrugated pipes from being damaged.
[0015] In summary, the above are only the preferred embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. The double-pump composite fuel pump assembly includes a pump body, a top cover, an oil level sensor assembly, and a filter screen. A socket and an oil outlet nozzle are provided at the upper end of the top cover, and a guide rod is provided at the lower end of the top cover. The pump body is liftably arranged on the guide rod, and a support spring is correspondingly arranged on the guide rod. It is characterized in that: There are two pump bodies, which are distributed left and right and are arranged in a matching manner within the pump bracket. A rear cover is provided at the lower end of the pump bracket. The filter screens are respectively connected to the oil inlets of the two pump bodies, and corresponding hollow-outs are provided on the rear covers. The oil outlets of the two pump bodies are connected to the tank body. The tank body is provided with a first oil outlet pipe, a second oil outlet pipe and a third oil outlet pipe. The first oil outlet pipe is connected to the ejector assembly. The second oil outlet pipe and the third oil outlet pipe are respectively connected to the two oil inlet ends of the three-way oil nozzle, and a pressure relief valve is connected in series on the third oil outlet pipe. The oil outlet end of the three-way oil nozzle is connected to the oil outlet nozzle through a fourth oil outlet pipe.
2. The double-pump composite fuel pump assembly according to claim 1, wherein: The tank body is composed of two cover bodies respectively covering the upper ends of the two pump bodies and a connecting pipe connecting the two upper covers.
3. The double-pump composite fuel pump assembly according to claim 1, characterized in that: The first oil outlet pipe, the second oil outlet pipe, the third oil outlet pipe and the fourth oil outlet pipe are all corrugated pipes, and a metal protective net is sleeved outside the corrugated pipes.