CN202811143U - Electric fuel pump of integrated pressure regulating valve - Google Patents
Electric fuel pump of integrated pressure regulating valve Download PDFInfo
- Publication number
- CN202811143U CN202811143U CN201220487416.7U CN201220487416U CN202811143U CN 202811143 U CN202811143 U CN 202811143U CN 201220487416 U CN201220487416 U CN 201220487416U CN 202811143 U CN202811143 U CN 202811143U
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- CN
- China
- Prior art keywords
- electric fuel
- spring
- regulator valve
- pressure regulator
- spool
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an electric fuel pump of an integrated pressure regulating valve. A pump body of the electric fuel pump is provided with an oil drainage cavity, and a pressure regulating valve is arranged inside the oil drainage cavity. The pressure regulating valve comprises a spring, a valve core which is placed on an oil inlet of the oil drainage cavity and a fixing ring which is placed on an oil outlet of the oil drainage cavity. The fixing ring is provided with a mounting column, and a limiting stage is arranged on the valve core. The spring is in a compressive state, one end of the spring abuts against the fixing ring and is placed inside the mounting column, and the other end is sleeved on the valve core and abuts against the limiting stage. According to the electric fuel pump, a pressure release valve of the electric fuel pump is improved to be the pressure regulating valve, so that a pressure regulating valve which only has the function of releasing pressure in an existing oil supply system is removed, cost is saved, and mounting space is optimized.
Description
Technical field
The utility model is relevant with oil-fired system, specifically belongs to a kind of electric fuel punp of integrated pressure regulator valve.
Background technique
Existing as required oil supply system, the pressure of oil supply system is regulated and is realized by pressure transducer+feedback control system, although be provided with independent pressure regulator valve in the system, only plays the effect of Decompression valves.This independent pressure regulator valve often better performances, pressure regulation is accurate, and cost is higher, and being used in as required in the oil supply system all is a kind of waste on function or on the cost.Simultaneously, arrange one independently pressure regulator valve also can so that the structure of whole electric fuel pump assembly scheme is complicated, be unfavorable for space layout.
In fact, existing electric fuel punp itself is integrated Decompression valves, as shown in Figure 1, this Decompression valves is the structure of spring+steel ball, after the high pressure oil pressure in the fuel pump was greater than certain value, steel ball was by high pressure oil jack-up, and this moment, high pressure oil flowed back to fuel tank by Decompression valves, when system pressure is lower than when unloading pressure pressure, steel ball is got back to original position under the effect of spring force.Spring provides certain pressure release pressure for Decompression valves, and compresses steel ball, but the pressure precision of this Decompression valves is not high, and relief range is wider, is unfavorable for for oil supply system as required.
The model utility content
Technical problem to be solved in the utility model provides a kind of electric fuel punp of integrated pressure regulator valve, can save in the oil-fired system independently pressure regulator valve, reduces cost, the optimization system structure.
For solving the problems of the technologies described above, the electric fuel punp of the integrated pressure regulator valve that the utility model provides, the pump housing of described electric fuel punp is provided with the draining chamber, described draining is equipped with a pressure regulator valve in the chamber, this pressure regulator valve comprises spring, be positioned at the spool of draining chamber filler opening, be positioned at the retainer ring of draining chamber oil outlet, described retainer ring has an erection column, has a limit dais on the spool, described spring is compressive state, the one end is pressed on the retainer ring and is positioned at outside the erection column, and the other end is set on the spool and is pressed on the limit dais.
The head of described spool is hemisphere, under the effect of spring, and the filler opening in spool head sealing draining chamber.
The Decompression valves that the utility model carries fuel pump is improved to a pressure regulator valve, thereby has saved the pressure regulator valve that only plays pressure relief that exists in the existing oil supply system, provides cost savings, and has optimized installing space.
Description of drawings
Fig. 1 is the partial schematic diagram of existing electric fuel punp;
Fig. 2 is the partial schematic diagram of electric fuel punp of the present utility model.
Wherein description of reference numerals is as follows:
1 is retainer ring; 2 is the draining chamber; 3 is spring; 4 is spool; 5 is the pump housing.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
The electric fuel punp of the integrated pressure regulator valve that the utility model provides, as shown in Figure 2, the pump housing 5 of electric fuel punp is provided with draining chamber 2, and a pressure regulator valve is housed in the draining chamber 2, and this pressure regulator valve comprises spring 3, be positioned at the spool 4 of draining chamber 2 filler openings, be positioned at the retainer ring 1 of draining chamber 2 oil outlets.Retainer ring 1 is hollow structure, has oil discharge passage in the middle of it, and retainer ring 1 has an erection column, and spool 4 comprises hemispheric head and columned bar section, be formed with a limit dais between head and the bar section, under the effect of spring 3, the filler opening in spool 4 heads sealing draining chamber 2.Described spring 3 is compressive state, and the one end is pressed on the retainer ring 1 and is positioned at outside the erection column, and the other end is set in the bar section of spool 4 and is pressed on the limit dais.
During installation, spool 4 is packed into first in the draining chamber 2, the spring 3 of then packing into, and the decrement by adjusting spring 3 is to set the pressure threshold of pressure regulator valve, the retainer ring 1 of packing at last.In the routine work state, this pressure regulator valve is in normally off, the filler opening in spool 4 sealing draining chambeies 2, when loine pressure surpasses the pressure threshold of setting, spool 4 can be backed down and further Compress Spring 3, when system pressure reduces to set point, because the restoring force of spring 3 is got back to original position to spool 4 tops, thereby seal once again the filler opening in draining chamber 2, prevent the pressure loss.
Utilize the Decompression valves function that carries on the oil pump, make the integrated pressure regulator valve of fuel pump by improvement, by adjusting the parameter (such as material, wire diameter, rigidity etc.) of spring 3, make spring satisfy corresponding system requirements, removed the original pressure regulator valve of oil supply system, reduce cost and saved the system space layout, and used plastic hemisphere type spool to replace the steel ball of existing Decompression valves, thereby increased the guidance quality of sealing and spring.
More than by specific embodiment the utility model is had been described in detail, this embodiment only is preferred embodiment of the present utility model, it is not that the utility model is limited.In the situation that does not break away from the utility model principle, equivalent replacement and improvement that those skilled in the art makes structure of pressure regulator valve etc. all should be considered as in the technology category that the utility model is protected.
Claims (3)
1. the electric fuel punp of an integrated pressure regulator valve, the pump housing of described electric fuel punp is provided with the draining chamber, it is characterized in that: described draining is equipped with a pressure regulator valve in the chamber, this pressure regulator valve comprises spring, be positioned at the spool of draining chamber filler opening, be positioned at the retainer ring of draining chamber oil outlet, described retainer ring has an erection column, has a limit dais on the spool, and described spring is compressive state, the one end is pressed on the retainer ring and is positioned at outside the erection column, and the other end is set on the spool and is pressed on the limit dais.
2. the electric fuel punp of integrated pressure regulator valve according to claim 1, it is characterized in that: the head of described spool is hemisphere, under the effect of spring, the filler opening in spool head sealing draining chamber.
3. the electric fuel punp of integrated pressure regulator valve according to claim 1, it is characterized in that: described retainer ring has an oil discharge passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220487416.7U CN202811143U (en) | 2012-09-21 | 2012-09-21 | Electric fuel pump of integrated pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220487416.7U CN202811143U (en) | 2012-09-21 | 2012-09-21 | Electric fuel pump of integrated pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811143U true CN202811143U (en) | 2013-03-20 |
Family
ID=47870029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220487416.7U Expired - Lifetime CN202811143U (en) | 2012-09-21 | 2012-09-21 | Electric fuel pump of integrated pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806392A (en) * | 2015-04-16 | 2015-07-29 | 重庆万力联兴实业(集团)有限公司 | Pump casing cover of automobile electric fuel pump |
| CN107806523A (en) * | 2017-11-28 | 2018-03-16 | 江西昌河汽车有限责任公司 | Integrated control valve and the fuel tank using the integrated control valve |
-
2012
- 2012-09-21 CN CN201220487416.7U patent/CN202811143U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806392A (en) * | 2015-04-16 | 2015-07-29 | 重庆万力联兴实业(集团)有限公司 | Pump casing cover of automobile electric fuel pump |
| CN107806523A (en) * | 2017-11-28 | 2018-03-16 | 江西昌河汽车有限责任公司 | Integrated control valve and the fuel tank using the integrated control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |