CN216447031U - Injection loop electronic injection fuel pump assembly - Google Patents
Injection loop electronic injection fuel pump assembly Download PDFInfo
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- CN216447031U CN216447031U CN202123146413.5U CN202123146413U CN216447031U CN 216447031 U CN216447031 U CN 216447031U CN 202123146413 U CN202123146413 U CN 202123146413U CN 216447031 U CN216447031 U CN 216447031U
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Abstract
The utility model relates to an injection loop electric injection fuel pump assembly, wherein an oil-pumping injection device is arranged on an oil storage barrel, a cavity and an injection channel are arranged in an injection body of the oil-pumping injection device, an oil inlet, an oil outlet and an oil-pumping port are also arranged on the injection body, the oil inlet is connected with an electric injection fuel pump through a first pipeline, the oil outlet is connected with a filter through a second pipeline, a one-way valve is arranged in the oil outlet, the oil-pumping port is connected with the oil-pumping pipeline, an oil-injecting port is arranged between the cavity and the injection channel, and an adapter of the oil-pumping port and the injection channel is matched at an outlet of the oil-injecting port. The oil pumping injection device utilizes a part of fuel oil pumped by the electric injection fuel pump to inject and pump oil, the fuel oil which is not utilized in the oil tank returns to the oil storage barrel in an injection oil pumping mode, in addition, the oil pumping injection device directly supplies the other part of fuel oil to the filter so as to be supplied to an engine oil way system for use, an oil outlet connecting nozzle of the electric injection fuel pump can complete oil supply and injection oil pumping of the oil way system, and the problem that the oil cannot be restarted due to backflow is avoided.
Description
Technical Field
The utility model relates to an electronic fuel injection pump assembly.
Background
The electric injection fuel pump assembly is a combination of an electric injection fuel pump, an oil storage barrel, an oil level sensor, a top cover, a filter and the like. The electronic fuel injection pump (fuel pump for short) is responsible for pumping out fuel in a fuel tank and supplying the fuel to an engine at rated pressure. For most rear-drive or four-drive vehicle types, the oil tank is saddle-shaped, and after a part of fuel oil is used, the fuel oil on the other side of the saddle cannot be used, so that the fuel oil utilization rate of the oil tank is low, and the fuel oil cannot be effectively and fully utilized.
SUMMERY OF THE UTILITY MODEL
In view of the technical problems in the background art, the technical problem to be solved by the present invention is to provide an injection loop electronic fuel injection pump assembly. The oil pumping ejector can utilize part of fuel pumped by the electronic injection fuel pump to inject and pump oil to form a loop to fully utilize the fuel in the oil tank, in addition, the oil pumping ejector directly supplies the other part of fuel pumped by the electronic injection fuel pump to the filter so as to be supplied to an engine oil way system, the fuel pumped by the electronic injection fuel pump is respectively injected to discharge oil and supplied to an oil way through the oil pumping ejector, and the structure is relatively more compact.
In order to solve the technical problem, the utility model adopts the following technical scheme: draw and spout electric injection fuel pump assembly in return circuit, including oil storage bucket, electricity spout fuel pump, filter, top cap, bracing piece and supporting spring, electricity spouts the fuel pump setting in the oil storage bucket, and the top cap passes through the bracing piece to be connected on the oil storage bucket, and the supporting spring cover is established on the bracing piece, and supporting spring is located between top cap and the oil storage bucket, its characterized in that: the oil storage barrel is also provided with an oil pumping injection device which comprises an injection body, a body cavity and an injection channel are arranged in the injection body, the injection body is also provided with an oil inlet, an oil outlet and an oil pumping port, the oil inlet and the oil outlet are communicated with the body cavity, the oil pumping port is communicated with the injection channel, the oil inlet is connected with an oil outlet interface of a pump head of an electric injection fuel pump through a first pipeline, the oil outlet is connected with an oil inlet interface of a filter through a second pipeline, a one-way valve is also arranged in the oil outlet, the oil pumping port is connected with the oil pumping pipeline, an oil injection port is arranged between the body cavity and the injection channel, and the oil pumping port and the interface of the injection channel are arranged at an outlet of the oil injection port. The oil pumping injection device can utilize part of fuel pumped by the electric injection fuel pump to inject and pump oil, can return to the oil storage barrel in an injection and oil pumping mode to supply power to the electric injection fuel pump to pump oil, and forms a loop so as to fully utilize the fuel in the oil tank, and is more practical.
The following various optimization or supplementary explanations may be made in the above technical solutions.
For example, the oil jet is provided with an injection nozzle. The additional injection nozzle that sets up lets the injection effect better, sprays more smoothly, avoids directly injecting the problem that the nozzle processing can't spray smoothly on drawing the injection body. In addition, the spray nozzle is made of copper, the spray nozzle is provided with a spray small hole, and the sealing performance is good after assembly.
Wherein, the oil outlet, the oil nozzle and the injection channel are positioned on the same axis. The structural layout is more reasonable, so that the injection body can be processed and molded, such as injection molding.
The oil pumping injection device is arranged on a barrel cover of the oil storage barrel, and the oil outlet is arranged towards the top cover. Structural layout is more reasonable, and later stage maintenance is more convenient, and the inside space of oil storage bucket will be bigger, and electricity spouts fuel pump heat dispersion better.
In addition, the one-way valve comprises a sealing valve seat, a sealing valve core, a pressure applying spring and a spring support frame.
For example, the sealing valve seat is tightly matched in the oil outlet, the middle of the sealing valve seat is provided with the oil passage, the oil passage is in sealing fit with the sealing valve core, the sealing valve core is connected to the guide rod, the pressing spring is sleeved outside the guide rod and is positioned between the sealing valve core and the spring support frame, the spring support frame is provided with a guide hole, the guide rod is in sliding fit in the guide hole, the spring support frame is further provided with an oil outlet, the port of the oil outlet is provided with a limiting step, and the spring support frame is configured at the limiting step and is fixed by the port closing-in of the oil outlet. The structure is compact, the assembly is convenient, the one-way sealing effect is good, and the operation is smooth.
The injection loop electronic injection fuel pump assembly has the advantages that in the injection loop electronic injection fuel pump assembly, the electronic injection fuel pump pumps fuel out and enters the oil pumping injection device, the oil pumping injection device utilizes part of the fuel to inject and pump oil, the other part of the fuel is directly supplied out and is supplied to the filter after passing through the one-way valve, and the filter is normally supplied to an engine oil way system for use; the fuel oil which is difficult to enter the oil storage barrel in the oil tank can be pumped away through the injection oil pumping, and is discharged from the injection channel through the oil outlet to enter the oil storage barrel, so that the fuel oil in the oil tank is fully utilized, and the fuel oil is prevented from remaining in the oil tank and cannot be utilized. The check valve is directly arranged in the oil outlet at the back so as to facilitate subsequent assembly and connection, and ensures that fuel oil in an engine oil way system can not flow back, so that the fuel oil in the filter and the oil way system can not flow back, and the problem that the engine can not be restarted due to the backflow is avoided. Thus, the present invention provides substantial features and advances over the prior art.
Drawings
The following describes details and operational principles of embodiments and examples of the present invention with reference to the drawings.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of the oil pumping injection device shown in FIG. 1.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a cross-sectional view a-a of fig. 3.
Fig. 5 is a perspective view of fig. 4 with portions of the structure not broken away.
In the figure: 1. an oil storage barrel; 2. an electric injection fuel pump; 3. a filter; 4. a top cover; 5. a support bar; 6. a support spring; 7. an oil pumping injection device; 8. an ejector body; 9. a body cavity; 10. an injection passage; 11. an oil inlet; 12. an oil outlet; 13. an oil pumping port; 14. a pump head; 15. an oil outlet interface; 16. a first pipeline; 17. an oil inlet interface; 18. a second pipeline; 19. a one-way valve; 20. an oil injection port; 21. a mouthpiece; 22. a spray nozzle; 23. sealing the valve seat; 24. a sealing valve core; 25. a pressure applying spring; 26. a spring support frame; 27. spraying small holes; 28. an oil passing channel; 29. a guide bar; 30. a guide hole; 31. an oil passing port; 32. and a limiting step.
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 should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to the attached drawings, in the embodiment of the present invention, the injection loop electric fuel injection pump assembly includes an oil storage tank 1, an electric fuel injection pump 2, a filter 3, a top cover 4, a support rod 5, and a support spring 6. An electronic fuel injection pump 2 is arranged in the oil storage barrel 1, so that fuel in the oil storage barrel 1 is pumped out by the electronic fuel injection pump 2. The top cap 4 is connected on the oil storage barrel 1 through the support rod 5, the support spring 6 is sleeved on the support rod 5, and the support spring 6 is located between the top cap 4 and the oil storage barrel 1.
The oil storage barrel 1 is further provided with an oil pumping injection device 7, the oil pumping injection device 7 comprises an injection body 8 (a pump body), a body cavity 9 and an injection channel 10 are arranged in the injection body 8, the injection body 8 is further provided with an oil inlet 11, an oil outlet 12 and an oil pumping port 13, the oil inlet 11 and the oil outlet 12 are communicated with the body cavity 9, and the oil pumping port 13 is communicated with the injection channel 10. The oil inlet 11 is connected with an oil outlet interface 15 of a pump head 14 of the electric injection fuel pump 2 through a first pipeline 16, so that when the electric injection fuel pump 2 pumps fuel out, the fuel is led out from the oil outlet interface 15 and enters the body cavity 9 of the injection body 8 through the first pipeline 16 and the oil inlet 11.
Wherein, oil-out 12 passes through second pipeline 18 with the oil feed interface 17 of filter 3 and is connected, still disposes check valve 19 in the oil-out 12. The fuel oil entering the body cavity 9 of the ejector body 8 can partially flow out from the oil outlet 12 and enter the filter 3, the one-way valve 19 can enable the fuel oil to smoothly flow out, the fuel oil can not directly flow back to the body cavity 9 from the filter 3, the fuel oil backflow in an engine oil path system can be avoided, the fuel oil in the filter 3 and the oil path system can not flow back, and the problem that the engine cannot be restarted due to the backflow is avoided. The check valve 19 is directly arranged in the oil outlet 12, so that the subsequent assembly and connection are more convenient, and the integrity of the oil pumping injection device 7 is better.
An oil injection port 20 is arranged between the body cavity 9 and the injection passage 10, an oil pumping port 13 is connected with an oil pumping pipeline, and the oil pumping port 13 and an adapter port 21 of the injection passage 10 are arranged at the outlet of the oil injection port 20. The other part of the fuel oil entering the body cavity 9 of the ejector 8 can be ejected out through the fuel injection port 20 to form high-speed jet flow, and a negative pressure area is formed at the position of the oil pumping port 13 and the connection port 21 of the ejector channel 10, so that the oil can be ejected and pumped. Oil is pumped from the position of the oil pumping port 13 to the injection passage 10. The port of the oil pumping pipeline can be placed in the oil tank as required, and the oil pumping pipeline is placed at a position where fuel oil is not easy to enter the oil storage barrel 1, and the fuel oil is easy to remain, so that the fuel oil is injected and pumped to enter the oil storage barrel 1 to be utilized, and the fuel oil in the oil tank is fully utilized.
In the injection loop electronic injection fuel pump assembly, an electronic injection fuel pump 2 pumps fuel out and enters an oil pumping injection device 7, the oil pumping injection device 7 performs injection and oil pumping by using part of the fuel, and directly supplies the other part of the fuel out, and the fuel passes through a one-way valve 19 and then is supplied to a filter 3, so that the filter 3 is normally supplied to an engine oil way system for use; the fuel oil which is difficult to enter the oil storage barrel 1 in the oil tank can be pumped away through the injection oil pumping, and is discharged from the injection channel 10 through the oil outlet 12 to enter the oil storage barrel 1, so that the fuel oil in the oil tank is fully utilized, and the fuel oil is prevented from remaining in the oil tank and being incapable of being utilized. The check valve 19 is directly arranged in the middle and at the rear of the oil outlet 12 for subsequent assembly and connection, and ensures that fuel oil in an oil way system of the engine cannot flow back, so that the fuel oil in the filter 3 and the oil way system cannot flow back, and the problem that the engine cannot be restarted due to the backflow is avoided. The fuel oil pumped by the electric injection fuel pump 2 is injected to discharge oil and is supplied to an oil way through the oil pumping injection device 7, and the structure is relatively compact.
The following optimization or further explanation can be made on the basis of the above embodiments, respectively.
For example, the fuel injection port 20 is provided with an injection nozzle 22. Additionally set up injection nozzle 22, let the injection effect better, spray more smoothly, avoid direct injection body 8 go up the problem that can't spray smoothly after nozzle 20 processes out, ensure machining precision and injection effect after injection nozzle 22 processes in addition, follow-up direct with injection nozzle 22 fill in the tight fit in nozzle 20 department can. In addition, the spray nozzle 22 is made of copper, the spray nozzle 22 is provided with a spray small hole 27, the sealing performance is good after assembly, and the spray is smooth.
Wherein, the oil outlet 12, the oil nozzle 20 and the injection channel 10 are positioned on the same axis. Structural configuration is more reasonable to draw the machine-shaping preparation of the body 8, for example draw the integrative injection moulding of body 8. The assembly structure is more reasonable, and when the oil nozzle is arranged in the subsequent installation, the oil nozzle can be placed into the position of the oil outlet 12 from the oil nozzle to the oil nozzle 20, and then the check valve 19 is placed into the oil outlet 12.
In addition, the filter 3 is arranged in the oil storage barrel 1; the filter 3 is arranged on the top cover 4 and positioned on the inner side of the top cover 4, the oil pumping injection device 7 is arranged on a barrel cover of the oil storage barrel 1, the barrel cover is connected to the barrel body of the oil storage barrel 1, the oil outlet 12 is arranged towards the top cover 4 and is conveniently connected with the second pipeline 18, and the oil injection port 20 faces towards the bottom of the oil storage barrel 1 so that injected fuel oil can enter the oil storage barrel 1; structural configuration is more reasonable, and later stage maintenance is more convenient, and 3 external backs of filter, the space of 1 inside oil storage bucket will be bigger, and 2 heat dispersion of electricity injection fuel pump are better, and the life-span increases.
In addition, the check valve 19 has a plurality of structures, for example, the check valve 19 includes a sealing valve seat 23, a sealing valve core 24, a pressure spring 25 and a spring support frame 26. The sealing valve seat 23 is matched and sealed with the sealing valve core 24, the pressure applying spring 25 acts on the sealing valve core 24 to ensure that the sealing valve core 24 is kept in sealing fit with the sealing valve seat 23, and when fuel oil comes out from the body cavity 9 in the injection body 8, the pressure overcomes the elastic force of the pressure applying spring 25, and the one-way valve 19 is opened; the reverse fuel and the pressure spring 25 work together to keep the sealing valve core 24 sealed with the sealing valve seat 23, and the fuel cannot reversely pass through.
For example, the sealing valve seat 23 is tightly fitted in the oil outlet 12, the middle of the sealing valve seat 23 is an oil passing channel 28, the oil passing channel 28 is in sealing fit with the sealing valve core 24, the sealing valve core 24 is connected to the guide rod 29, the pressure spring 25 is sleeved outside the guide rod 29, the pressure spring 25 is located between the sealing valve core 24 and the spring support frame 26, the spring support frame 26 is provided with a guide hole 30, the guide rod 29 is in sliding fit in the guide hole 30, the spring support frame 26 is further provided with an oil passing port 31 (a plurality of ports can be arranged), the port of the oil outlet 12 is provided with a limiting step 32, the spring support frame 26 is arranged at the limiting step 32 and is fixed by the port closing of the oil outlet 12, the closing can be realized by a spin riveting method, and the port is reduced. The structure is compact, the assembly is convenient, the one-way sealing effect is good, and the operation is smooth. The port of the oil passage 28 can be set to be a conical surface, and the sealing valve core 24 can be a spherical surface (such as a hemispherical structure), so that the sealing effect is good. Typically, the sealing valve seat 23 will also be made of copper or rubber, and the sealing valve seat 23 will be tightly fitted in the oil outlet 12 by interference fit. The guide rod 29 can stably slide in the guide hole 30 of the spring support frame 26, so that the sealing valve core 24 can run more smoothly, and the end part of the guide rod 29 can be convenient for the mounting plate to arrange the sealing valve core 24. The injection nozzle 22 and the seal valve seat 23 are both of a rotary structure in the figure.
Even the pressure valve is provided with an injection structure to absorb oil, and a double-loop structure is formed in a matching way, so that the accident rate is reduced.
The foregoing is a preferred embodiment of the present invention, and it should be noted that the scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the scope of the utility model as set forth in the claims.
Claims (7)
1. Ejection loop electricity spouts fuel pump assembly, including oil storage bucket (1), electricity spouts fuel pump (2), filter (3), top cap (4), bracing piece (5) and supporting spring (6), electricity spouts fuel pump (2) and sets up in oil storage bucket (1), top cap (4) are connected on oil storage bucket (1) through bracing piece (5), supporting spring (6) cover is established on bracing piece (5), supporting spring (6) are located between top cap (4) and oil storage bucket (1), its characterized in that:
the oil storage barrel (1) is also provided with an oil pumping and ejecting device (7), the oil pumping and ejecting device (7) comprises an ejecting body (8), a body cavity (9) and an ejecting channel (10) are arranged in the ejecting body (8),
the injection body (8) is also provided with an oil inlet (11), an oil outlet (12) and an oil pumping port (13),
the oil inlet (11) and the oil outlet (12) are communicated with the body cavity (9), the oil pumping port (13) is communicated with the injection channel (10),
the oil inlet (11) is connected with an oil outlet interface (15) of a pump head (14) of the electric injection fuel pump (2) through a first pipeline (16),
the oil outlet (12) is connected with an oil inlet interface (17) of the filter (3) through a second pipeline (18), a one-way valve (19) is also arranged in the oil outlet (12),
an oil nozzle (20) is arranged between the body cavity (9) and the injection channel (10),
the oil pumping port (13) is connected with an oil pumping pipeline,
the oil pumping port (13) and the connection port (21) of the injection channel (10) are arranged at the outlet of the oil nozzle (20).
2. An injection circuit electronic fuel pump assembly as in claim 1, wherein: the injection port (20) is provided with an injection nozzle (22).
3. An injection circuit electronic fuel pump assembly as in claim 2, wherein: the spray nozzle (22) is made of copper, and the spray nozzle (22) is provided with a small spray hole (27).
4. An injection circuit electronic fuel pump assembly as in claim 1, wherein: the oil outlet (12), the oil nozzle (20) and the injection channel (10) are positioned on the same axis.
5. An injection circuit electronic fuel injection pump assembly as claimed in claim 1 or 4, wherein: the filter (3) is arranged on the top cover (4) and is positioned on the inner side of the top cover (4), the oil pumping injection device (7) is arranged on the barrel cover of the oil storage barrel (1), and the oil outlet (12) is arranged towards the top cover (4).
6. An injection circuit electronic fuel pump assembly as in claim 1, wherein: the one-way valve (19) comprises a sealing valve seat (23), a sealing valve core (24), a pressure applying spring (25) and a spring support frame (26).
7. An injection circuit electronic fuel pump assembly as in claim 6, wherein:
the sealing valve seat (23) is tightly matched in the oil outlet (12), the middle of the sealing valve seat (23) is provided with an oil passing channel (28), the oil passing channel (28) is in sealing fit with the sealing valve core (24), the sealing valve core (24) is connected onto the guide rod (29), the pressing spring (25) is sleeved outside the guide rod (29), the pressing spring (25) is positioned between the sealing valve core (24) and the spring support frame (26), the spring support frame (26) is provided with a guide hole (30), the guide rod (29) is in sliding fit in the guide hole (30), the spring support frame (26) is further provided with an oil passing port (31), the port of the oil outlet (12) is provided with a limiting step (32), and the spring support frame (26) is configured at the limiting step (32) and is fixed by the port of the oil outlet (12) to close up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146413.5U CN216447031U (en) | 2021-12-15 | 2021-12-15 | Injection loop electronic injection fuel pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146413.5U CN216447031U (en) | 2021-12-15 | 2021-12-15 | Injection loop electronic injection fuel pump assembly |
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| Publication Number | Publication Date |
|---|---|
| CN216447031U true CN216447031U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123146413.5U Active CN216447031U (en) | 2021-12-15 | 2021-12-15 | Injection loop electronic injection fuel pump assembly |
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| CN (1) | CN216447031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934866A (en) * | 2022-05-27 | 2022-08-23 | 浙江睿峰电喷系统有限公司 | Novel fuel pump support assembly go out two jet oil return ware subassemblies of oil |
-
2021
- 2021-12-15 CN CN202123146413.5U patent/CN216447031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934866A (en) * | 2022-05-27 | 2022-08-23 | 浙江睿峰电喷系统有限公司 | Novel fuel pump support assembly go out two jet oil return ware subassemblies of oil |
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Denomination of utility model: Injection circuit electronic fuel injection pump assembly Effective date of registration: 20230925 Granted publication date: 20220506 Pledgee: Zheshang Bank Limited by Share Ltd. Wenzhou Pingyang branch Pledgor: WENZHOU ZOREN AUTO ELECTRIC CONTROL CO.,LTD. Registration number: Y2023330002176 |