CN202707324U - Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly - Google Patents
Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly Download PDFInfo
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- CN202707324U CN202707324U CN 201220359429 CN201220359429U CN202707324U CN 202707324 U CN202707324 U CN 202707324U CN 201220359429 CN201220359429 CN 201220359429 CN 201220359429 U CN201220359429 U CN 201220359429U CN 202707324 U CN202707324 U CN 202707324U
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Abstract
The utility model relates to an automatic oil-return-type single oil nozzle automobile electric fuel pump assembly, and mainly solves the technical problems that an existing fuel pump assembly adopts a discharging/returning oil nozzle structure, needs to be connected through a three-way connector, and therefore a connecting pipe is easy to loosen and result in fuel leakage, and the like. The automatic oil-return-type single oil nozzle automobile electric fuel pump assembly is characterized in that a main oil pipe, an oil outlet branch pipe and an oil return branch pipe are arranged on a flange, and one end of the oil outlet branch pipe is communicated with an outlet of a fuel pump, and the other end of the oil outlet branch pipe is communicated with the main oil pipe. One end of the oil return branch pipe is connected with the main oil pipe, and the other end of the oil return branch pipe is connected with an inlet of a pressurizer. An outlet of the pressurizer is communicated with an oil storage drum. Compared with an existing fuel pump assembly, connections of the oil outlet branch pipe and the oil return branch pipe are in an oil tank, and supply and backflow of fuel can be achieved without providing the three-way connector and the independent oil return nozzle, and connecting joints between the fuel pump and an automobile fuel ejection system are reduced. Safety, reliability and tightness of use of the fuel pump can be greatly strengthened, and oil leakage due to too many connection pipes is effectively prevented.
Description
Technical field
The utility model relates to a kind of petrol pump, relates in particular the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula assembly, is mainly used in motor car engine fuel oil supply system technical field.
Background technique
Electric fuel punp is mainly used in providing for automobile fuel injection system the fuel oil of certain pressure, the automobile electric fuel pump assembly is of a great variety both at home and abroad at present, totally be summed up and mainly contain retort stand assembly and plastic stent assembly (dividing from flange components and pump core components material), band oil-storing barrel and without the oil-storing barrel assembly is arranged, belt sensor assembly and belt sensor assembly are not arranged, band pressure maintaining valve assembly is arranged and be not with the pressure maintaining valve assembly, the band air valve ASSY is arranged and be not with air valve ASSY etc., be used for vehicle miscellaneous, although some difference on these automobile electric fuel pump structures, but all be that oil return nozzle carries out this mode of oil return and carries out work by oil outlet delivering fuel independently basically.Although adopt this structure can make things convenient for the production and assembly of fuel oil pump assembly, but owing to adopting oil outlet and oil return nozzle structure in use, need to utilize tee union and connecting tube to connect oil outlet and oil return nozzle, in the Vehicle Driving Cycle process, the phenomenon of jolting is unavoidable, so just easily cause tee union and go out/and the connecting tube of oil return nozzle gets loose and causes fuel leakage, and fuel leakage not only pollutes the environment, also can cause vehicle fire simultaneously, have certain potential safety hazard; Secondly, in the epoch of soaring oil prices, fuel leakage has also increased the user cost of automobile relatively.
Summary of the invention
Adopt out/the oil return nozzle structure in order to solve existing fuel oil pump assembly, need connect by tee union, easily cause the connecting tube technical problems such as causing fuel leakage that gets loose; The utility model provides the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula assembly, this fuel oil pump assembly can adopt the practical fuel-displaced and oil return function of single oil nozzle structure, and need not just can realize by tee union output and the backflow of fuel oil, and can avoid fuel oil to leak, save user cost.
For solving above technical problem, the technological scheme that the utility model is taked is the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula assembly, and it comprises flange, oil-storing barrel and fuel pump, and fuel pump is installed in the oil-storing barrel; Be provided with main oil pipe at flange, go out oil inlet pipe and oil returning branch pipe, go out oil inlet pipe one end and be connected with fuel pump outlet, the other end main oil pipe communicates, and oil returning branch pipe one end links to each other with main oil pipe, the other end links to each other with the stable-pressure device import, and the outlet of stable-pressure device is connected with oil-storing barrel.
Further, be provided with the partition main oil pipe at described main oil pipe and form separate oil outlet and the dividing plate of oil return nozzle, oil returning branch pipe includes the first arm and the second arm, go out oil inlet pipe and the first arm one end is connected with oil outlet respectively, import links to each other the other end with stable-pressure device with fuel pump outlet respectively, the second arm one end is connected with oil return nozzle, and the other end links to each other with the outlet of stable-pressure device; Oil outlet is connected with oil-storing barrel.
Further, be provided with fixedly cavity volume at described flange, stable-pressure device is installed in the cavity volume and with the cavity volume sealing, the import of stable-pressure device places in the cavity volume and communicates with cavity volume, and outlet places in the second arm and is connected with the second arm, and the first arm communicates with cavity volume.
Further, the tail end of described oil outlet is provided with the 3rd arm, and the 3rd arm communicates with oil-storing barrel by conduit.
Further, described stable-pressure device is fuel oil stabilizer.
The beneficial effects of the utility model are at flange a main oil pipe to be set, the backflow arm of the connection stable-pressure device that goes out oil inlet pipe that connects fuel pump is set below main oil pipe, so in use, supply and the backflow that only need to the outlet of main oil pipe is connected and just can realize fuel oil with the injection tubing of automobile with conduit, compare with existing fuel oil pump assembly, going out oil inlet pipe all was in the fuel tank with being connected of oil returning branch pipe, need not for help tee union and independently oil return nozzle just can realize supply and the backflow of fuel oil, and reduced the tie point of fuel pump and automobile injection system, make the safety in utilization of fuel pump, reliability and sealing are strengthened greatly, prevent that effectively connecting tube from crossing the oil leakage phenomenon that mostly occurs.
Description of drawings
Fig. 1 is the plan structure figure of the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula of the utility model embodiment assembly
Fig. 2 is A--A place sectional structure chart among Fig. 1
Fig. 3 is the three-dimensional structure diagram of the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula of the utility model embodiment assembly
Embodiment
Below in conjunction with accompanying drawing the utility model mode of execution is described further:
As shown in Figure 1 to Figure 3, the utility model is the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula assembly, and it comprises flange 1, oil-storing barrel 2 and fuel pump 3, and fuel pump 3 is installed in the oil-storing barrel 2; Adopt out/the oil return nozzle structure in order to solve existing fuel oil pump assembly, need connect by tee union, easily cause the connecting tube technical problems such as causing fuel leakage that gets loose; Be provided with main oil pipe 11 at flange 1, go out oil inlet pipe 12 and oil returning branch pipe 13, going out oil inlet pipe 12 1 ends is connected with fuel pump 3 outlets, the other end main oil pipe 11 communicates, oil returning branch pipe 13 1 ends link to each other with main oil pipe 11, the other end links to each other with stable-pressure device 4 imports, and the outlet of stable-pressure device 4 is connected with oil-storing barrel 2.At flange 1 main oil pipe 11 is set, below main oil pipe 11, arrange connect fuel pump 3 go out oil inlet pipe 12 and the backflow arm 13 that is connected stable-pressure device 4, so in use, supply and the backflow that only need to the outlet of main oil pipe 11 is connected and just can realize fuel oil with the injection tubing of automobile with conduit, its working method is: fuel oil pump assembly is fixed in the automotive oil tank by flange 1, automobile ECU system control fuel pump 3 starts, fuel oil through oil-storing barrel 2 bottoms after filtration device enter in the oil-storing barrel 2, enter the interior injection tubings to automobile of main oil pipe 11 and realize fuel feeding by pumping through going out oil inlet pipe 12 of fuel pump 3 again; The cracking pressure of stable-pressure device 4 is identical with the pressure of automobile injection system, if and the fuel pressure that fuel pump 3 provides and flow are when surpassing engine work and needing, unnecessary fuel oil is then discharged and is back in the oil-storing barrel 2 in oil returning branch pipe 13 enters stable-pressure device 4 and through stable-pressure device 4 outlets, realize the backflow recycling of unnecessary fuel oil, also can guarantee simultaneously the pressure stability of automobile injection system; Compare with existing fuel oil pump assembly, going out oil inlet pipe 12 all was in the fuel tank with being connected of oil returning branch pipe 13, need not for help tee union and independently oil return nozzle just can realize supply and the backflow of fuel oil, and reduced the tie point of fuel pump 3 with the automobile injection system, safety in utilization, reliability and the sealing of fuel oil pump assembly are strengthened greatly, prevent that effectively connecting tube from crossing the oil leakage phenomenon that mostly occurs, reduce and pollute and save fuel oil.
In the present embodiment, supply and backflow for ease of fuel oil, be provided with partition main oil pipe 11 at described main oil pipe 11 and form separate oil outlet 111 and the dividing plate 113 of oil return nozzle 112, by arrange at main oil pipe 11 dividing plate 113 (dividing plate 113 also can adopt steel ball that main oil pipe 11 is stopped up, only main oil pipe 11 need to be cut off form separate oil outlet 111 and oil return nozzle 112 all can) form independently fuel-displaced and return line; Oil returning branch pipe 13 includes the first arm 131 and the second arm 132, go out oil inlet pipe 12 and the first arm 131 1 ends are connected with oil outlet 112 respectively, 4 imports link to each other the other end with stable-pressure device with fuel pump 3 outlets respectively, the second arm 132 1 ends are connected with oil return nozzle 112, and the other end links to each other with the outlet of stable-pressure device 4; Oil outlet 112 is connected with oil-storing barrel 2.In use, to enter the oil outlet 111 of main oil pipe 11 front ends interior to automobile injection system fuel feeding through going out oil inlet pipe 12 for fuel oil, when the fuel pressure that provides when fuel pump 3 and flow surpass engine work and need, fuel oil can enter in the stable-pressure device 4 and backs down the valve of stable-pressure device 4 through the first arm 131, the oil return nozzle 112 that enters main oil pipe 11 afterbodys through outlet and second arm 132 of stable-pressure device 4 is back in the oil-storing barrel 2, realize the release of fuel oil and the recycling that refluxes, guarantee the pressure stability of automobile injection system.
In the present embodiment, installation for ease of stable-pressure device 4 is fixed, be provided with fixedly cavity volume 14 at described flange 1, stable-pressure device 4 is installed in the cavity volume 14 and with cavity volume 14 and seals, the import of stable-pressure device 4 places in the cavity volume 14 and communicates with cavity volume 14, outlet places in the second arm 132 and is connected with the second arm 132, and the first arm 131 communicates with cavity volume 14.In flange 1 bottom cavity volume 14 is set, again first, second arm 131,132 is communicated with cavity volume 14 respectively, import with stable-pressure device 4 links to each other with first, second arm 131,132 respectively with outlet again, when the fuel pressure that provides when fuel pump and flow surpass engine work and need, fuel oil enters in the cavity volume 14 through the first arm 131, when pressure surpassed the setting pressure of stable-pressure device 4, fuel oil entered release and the backflow that oil return nozzle 112 interior discharges are back to oil-storing barrel 2 interior realization fuel pressures through stable-pressure device 4 imports, outlet and the second arm 132; Certainly, also the second arm 132 can be set, and the outlet of stable-pressure device 4 is directly linked to each other with the oil return nozzle 112 of main oil pipe 11, can realize fuel pressure release and backflow equally, but adopt this structure, be easy to the installation of stable-pressure device 4, therefore, the mode of execution of the present embodiment is preferred implementation.
In the present embodiment, for ease of being connected of oil return nozzle 112 and oil-storing barrel 2, the tail end of described oil return nozzle 112 is provided with the 3rd arm 133, the 3rd arm 133 communicates with oil-storing barrel 2 by conduit, and the 3rd arm 133 is structure as a whole with main oil pipe 11, by the 3rd arm 133 is set, not only can be convenient to being communicated with of oil return nozzle 112 and oil-storing barrel 2, simultaneously, also can make the more compact structure of flange 1, profile is more attractive in appearance; Certainly, from the technique effect that will reach, oil return nozzle 112 also can utilize bellows directly to link to each other with oil-storing barrel 2, need not to reach identical order equally by the 3rd arm 133, but adopt this structure to be easy to connect, therefore, the mode of execution of the present embodiment is preferred implementation.
In the present embodiment, described stable-pressure device 4 is fuel oil stabilizer, voltage stabilizer is directly buying from the market, its structure mainly is comprised of loam cake 41, base 42 and sealing seat 43, sealing seat 43 is made of steel ball 431, pedestal 432 and pressure spring 433, be provided with outlet 411 and import 412 in the loam cake 41, base 42 is fixed on loam cake 41 belows and is fixedly connected with, and sealing seat 43 mobilizable being installed in also can make under external force steel ball 431 sealings and open outlet 411 in the base 42.Fuel oil enters in the cavity volume through the first arm, import through loam cake enters again, when the pressure of fuel oil greater than pressure spring 433 elastic force the time, pressure spring 433 shrinks and makes pedestal 432 drive steel ball 431 downward slippages, thereby fuel oil can be discharged through exporting 411, realize backflow recycling and the fuel pressure balance of fuel oil.
Above-described embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (5)
1. the single oil nozzle automobile electric fuel pump of automatic oil return formula assembly, it comprises flange, oil-storing barrel and fuel pump, fuel pump is installed in the oil-storing barrel; It is characterized in that being provided with main oil pipe at flange, going out oil inlet pipe and oil returning branch pipe, go out oil inlet pipe one end and be connected with fuel pump outlet, the other end main oil pipe communicates, and oil returning branch pipe one end links to each other with main oil pipe, the other end links to each other with the stable-pressure device import, and the outlet of stable-pressure device is connected with oil-storing barrel.
2. the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula according to claim 1 assembly, it is characterized in that being provided with the partition main oil pipe at described main oil pipe forms separate oil outlet and the dividing plate of oil return nozzle, oil returning branch pipe includes the first arm and the second arm, go out oil inlet pipe and the first arm one end is connected with oil outlet respectively, import links to each other the other end with stable-pressure device with fuel pump outlet respectively, the second arm one end is connected with oil return nozzle, and the other end links to each other with the outlet of stable-pressure device; Oil outlet is connected with oil-storing barrel.
3. the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula according to claim 2 assembly, it is characterized in that being provided with fixedly cavity volume at described flange, stable-pressure device is installed in the cavity volume and with cavity volume and seals, the import of stable-pressure device places in the cavity volume and communicates with cavity volume, outlet places in the second arm and is connected with the second arm, and the first arm communicates with cavity volume.
4. the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula according to claim 3 assembly is characterized in that the tail end of described oil outlet is provided with the 3rd arm, and the 3rd arm communicates with oil-storing barrel by conduit.
5. the single oil nozzle automobile electric fuel pump of a kind of automatic oil return formula according to claim 4 assembly is characterized in that described stable-pressure device is fuel oil stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359429 CN202707324U (en) | 2012-07-13 | 2012-07-13 | Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359429 CN202707324U (en) | 2012-07-13 | 2012-07-13 | Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly |
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| Publication Number | Publication Date |
|---|---|
| CN202707324U true CN202707324U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359429 Expired - Lifetime CN202707324U (en) | 2012-07-13 | 2012-07-13 | Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly |
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| CN (1) | CN202707324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748173A (en) * | 2012-07-13 | 2012-10-24 | 温州安佳汽车零部件有限公司 | Automatic oil return type automotive electric fuel pump assembly with single nozzle tip |
-
2012
- 2012-07-13 CN CN 201220359429 patent/CN202707324U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748173A (en) * | 2012-07-13 | 2012-10-24 | 温州安佳汽车零部件有限公司 | Automatic oil return type automotive electric fuel pump assembly with single nozzle tip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Sandao 4339 Binhai, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Jinjia Auto Parts Co.,Ltd. Address before: 325000 Sandao 4339 Binhai, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee before: WENZHOU ANJIA AUTOMOBILE PARTS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |