CN102748173A - Automatic oil return type automotive electric fuel pump assembly with single nozzle tip - Google Patents
Automatic oil return type automotive electric fuel pump assembly with single nozzle tip Download PDFInfo
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- CN102748173A CN102748173A CN2012102593765A CN201210259376A CN102748173A CN 102748173 A CN102748173 A CN 102748173A CN 2012102593765 A CN2012102593765 A CN 2012102593765A CN 201210259376 A CN201210259376 A CN 201210259376A CN 102748173 A CN102748173 A CN 102748173A
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Abstract
The invention relates to an automatic oil return type automotive electric fuel pump assembly with a single nozzle tip, mainly solves the technical problems that the conventional fuel oil pump assembly adopts a discharge/return nozzle tip structure, and the discharge/return nozzle tip structure is connected through a tee joint, so that a connecting pipe is easy to get loose so as to cause fuel oil leakage and the like, and is characterized in that a flange is provided with a main oil pipe, an oil discharge branch pipe and an oil return branch pipe, wherein one end of the oil discharge branch pipe is communicated with the outlet of a fuel oil pump and the other end of the oil discharge 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 the inlet of a pressure stabilizing device, and the outlet of the pressure stabilizing device is communicated with an oil storage barrel. In comparison with the conventional fuel oil pump assembly, a connection of the oil discharge branch pipe and the oil return branch pipe is in an oil tank, the fuel oil is supplied and reflows without the tee joint and the independent return nozzle tip, the connecting point of the fuel oil pump and an automotive oil injection system can be reduced, so that using safety, reliability and sealing property of the fuel oil pump are greatly enhanced, and the oil leakage phenomenon due to excessive connecting pipes can be effectively avoided.
Description
Technical field
The present invention relates to a kind of petrol pump, relate to the single oil nozzle motorcar electric of a kind of automatic oil return formula fuel oil pump assembly in particular, be mainly used in motor car engine fuel oil supply system technical field.
Background technique
Electric fuel punp is mainly used in the fuel oil that certain pressure is provided for automobile fuel injection system; The motorcar electric fuel oil pump assembly is of a great variety both at home and abroad at present; The overall conclusion gets up to mainly contain retort stand assembly and plastic stent assembly (dividing from flange components and pump core components material), and the oil-storing barrel of being with and no oil-storing barrel assembly are arranged, and 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 or the like, be used for vehicle miscellaneous, though some difference on these motorcar electric fuel pump structures; But all be to carry fuel oil through oil outlet independently basically, oil return nozzle carries out this mode of oil return and carries out work.Though adopt this structure can make things convenient for the production and assembly of fuel oil pump assembly,, need utilize tee union to be connected oil outlet and oil return nozzle with connecting tube owing to adopt oil outlet and oil return nozzle structure in use; In the vehicle driving process; The phenomenon of jolting is unavoidable, so just cause tee union easily 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, be prone to cause the connecting tube technical problems such as causing fuel leakage that gets loose through tee union; The present invention provides the single oil nozzle motorcar electric of a kind of automatic oil return formula fuel oil pump 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 the output and the backflow of fuel oil, and can avoid fuel oil to leak, save user cost through tee union.
For solving above technical problem, the technological scheme that the present invention takes is the single oil nozzle motorcar electric of an a kind of automatic oil return formula fuel oil pump assembly, and it comprises flange, oil-storing barrel and fuel pump, and fuel pump is installed in the oil-storing barrel; On flange, be provided with main oil pipe, 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; On described main oil pipe, be provided with the partition main oil pipe and form the separate oil outlet and the dividing plate of oil return nozzle; Oil returning branch pipe includes first arm and second arm, goes out oil inlet pipe and first arm, one end is connected with oil outlet respectively, and import links to each other the other end with stable-pressure device with fuel pump outlet respectively; 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, on described flange, be provided with fixedly cavity volume, 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 second arm and is connected with second arm, and 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 through conduit.
Further, described stable-pressure device is a fuel oil stabilizer.
The invention has the beneficial effects as follows a main oil pipe is set on flange; 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; Only need compare with the prior fuel oil pump assembly, go out oil inlet pipe and all be in the fuel tank with being connected of oil returning branch pipe with conduit with supply and backflow that the outlet of main oil pipe is connected and just can realizes fuel oil with the injection tubing of automobile; Need not to supply to help tee union and independently oil return nozzle just can realize the supply and the backflow of fuel oil; And reduced the tie point of fuel pump and automobile injection system, safety in utilization, reliability and the sealing of fuel pump are strengthened greatly, prevented 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 motorcar electric of a kind of automatic oil return formula of embodiment of the invention fuel oil pump assembly
Fig. 2 is an A--A place sectional structure chart among Fig. 1
Fig. 3 is the three-dimensional structure diagram of the single oil nozzle motorcar electric of a kind of automatic oil return formula of embodiment of the invention fuel oil pump assembly
Embodiment
Below in conjunction with accompanying drawing embodiment of the present invention is described further:
To shown in Figure 3, the present invention is the single oil nozzle motorcar electric of an a kind of automatic oil return formula fuel oil pump assembly like Fig. 1, 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, be prone to cause the connecting tube technical problems such as causing fuel leakage that gets loose through tee union; On flange 1, be provided with main oil pipe 11, 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, and 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.A main oil pipe 11 is set on flange 1; Below main oil pipe 11, be provided with 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; The supply and the backflow that only need 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 through flange 1, and the automobile ECU system controls fuel pump 3 startups; Fuel oil in filtrating equipment gets into oil-storing barrel 2, is realized fuel feeding through pumping in going out oil inlet pipe 12 entering main oil pipes 11 of fuel pump 3 to the injection tubing of automobile through oil-storing barrel 2 bottoms again; The cracking pressure of stable-pressure device 4 is identical with the pressure of automobile injection system; And if fuel pressure that fuel pump 3 provides and flow are when surpassing the motor proper functioning and needing; Unnecessary fuel oil then gets in the stable-pressure device 4 and through stable-pressure device 4 outlets through oil returning branch pipe 13 and discharges and be back in the oil-storing barrel 2; The backflow that realizes unnecessary fuel oil utilizes again, also can guarantee the pressure stability of automobile injection system simultaneously; Compare with the prior 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 to supply to help tee union and independently oil return nozzle just can realize the 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; On described main oil pipe 11, be provided with and cut off the dividing plate 113 that main oil pipe 11 forms separate oil outlet 111 and oil return nozzle 112; Through on main oil pipe 11, be provided with dividing plate 113 (dividing plate 113 also can adopt steel ball that main oil pipe 11 is stopped up, only need with main oil pipe 11 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 first arm 131 and second arm 132; Go out oil inlet pipe 12 and 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; 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; Fuel oil in the oil outlet 111 that goes out oil inlet pipe 12 and get into main oil pipes 11 front ends to automobile injection system fuel feeding; When fuel pressure that provides when fuel pump 3 and flow surpass the motor proper functioning and need; Fuel oil can be in first arm 131 gets into stable-pressure devices 4 and backs down the valve of stable-pressure device 4; Be back in the oil-storing barrel 2 through the outlet of stable-pressure device 4 and the oil return nozzle 112 of second arm, 132 entering main oil pipes, 11 afterbodys, realize that the release of fuel oil utilizes with refluxing, the pressure stability of assurance automobile injection system again.
In the present embodiment; For ease of installing and fixing of stable-pressure device 4; On described flange 1, be provided with fixedly cavity volume 14, stable-pressure device 4 is installed in the cavity volume 14 and with cavity volume 14 sealings, the import of stable-pressure device 4 places in the cavity volume 14 and communicates with cavity volume 14; Outlet places in second arm 132 and is connected with second arm 132, and 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 fuel pressure that provides when fuel pump and flow surpass the motor proper functioning and need; Fuel oil gets in the cavity volume 14 through first arm 131, and when pressure surpassed the setting pressure of stable-pressure device 4, fuel oil got into to discharge in the oil return nozzle 112 through stable-pressure device 4 imports, outlet and second arm 132 and is back to release and the backflow that realizes fuel pressure in the oil-storing barrel 2; Certainly, also 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 present embodiment is a 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 through conduit, and the 3rd arm 133 is structure as a whole with main oil pipe 11, through 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 bellows also capable of using directly links to each other with oil-storing barrel 2; Need not to reach identical order equally, but adopt this structure to be easy to connect through the 3rd arm 133; Therefore, the mode of execution of present embodiment is a preferred implementation.
In the present embodiment; Described stable-pressure device 4 is a fuel oil stabilizer, and voltage stabilizer is directly purchased from market, and its structure mainly is made up of loam cake 41, base 42 and sealing seat 43; Sealing seat 43 is made up 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, and sealing seat 43 mobilizable being installed in also can make steel ball 431 sealings under external force and open outlet 411 in the base 42.Fuel oil gets in the cavity volume through first arm; Import through loam cake gets into 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, realizes that the backflow of fuel oil utilizes and the fuel pressure balance again.
The foregoing description should not be regarded as limitation of the present invention, but any improvement of doing based on spirit of the present invention, all should be within protection scope of the present invention.
Claims (5)
1. the single oil nozzle motorcar electric of automatic oil return formula fuel oil pump assembly, it comprises flange, oil-storing barrel and fuel pump, fuel pump is installed in the oil-storing barrel; It is characterized in that on flange, being provided with main oil pipe, 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.
2. the single oil nozzle motorcar electric of a kind of automatic oil return formula according to claim 1 fuel oil pump assembly; It is characterized in that on described main oil pipe, being provided with the partition main oil pipe and form the separate oil outlet and the dividing plate of oil return nozzle; Oil returning branch pipe includes first arm and second arm; Go out oil inlet pipe and 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, and 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 motorcar electric of a kind of automatic oil return formula according to claim 1 and 2 fuel oil pump assembly; It is characterized in that on described flange, being provided with fixedly cavity volume; 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, and outlet places in second arm and is connected with second arm, and first arm communicates with cavity volume.
4. the single oil nozzle motorcar electric of a kind of automatic oil return formula according to claim 3 fuel oil pump 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 through conduit.
5. the single oil nozzle motorcar electric of a kind of automatic oil return formula according to claim 4 fuel oil pump assembly is characterized in that described stable-pressure device is a fuel oil stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102593765A CN102748173A (en) | 2012-07-13 | 2012-07-13 | Automatic oil return type automotive electric fuel pump assembly with single nozzle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102593765A CN102748173A (en) | 2012-07-13 | 2012-07-13 | Automatic oil return type automotive electric fuel pump assembly with single nozzle tip |
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| Publication Number | Publication Date |
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| CN102748173A true CN102748173A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102593765A Pending CN102748173A (en) | 2012-07-13 | 2012-07-13 | Automatic oil return type automotive electric fuel pump assembly with single nozzle tip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952557A (en) * | 2016-06-30 | 2016-09-21 | 浙江锦佳汽车零部件有限公司 | Fuel oil pump assembly of dual-oil-tank system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910604A (en) * | 2008-01-08 | 2010-12-08 | 株式会社京浜 | Fuel supply module |
| CN101939532A (en) * | 2008-02-04 | 2011-01-05 | 科勒公司 | Fuel delivery system for engine |
| CN102052217A (en) * | 2009-11-05 | 2011-05-11 | 三菱电机株式会社 | Fuel supply device |
| CN202140211U (en) * | 2011-07-18 | 2012-02-08 | 重庆平江实业有限责任公司 | Pump cover of return oil-free electric fuel pump assembly support |
| CN202707324U (en) * | 2012-07-13 | 2013-01-30 | 温州安佳汽车零部件有限公司 | Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly |
-
2012
- 2012-07-13 CN CN2012102593765A patent/CN102748173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910604A (en) * | 2008-01-08 | 2010-12-08 | 株式会社京浜 | Fuel supply module |
| CN101939532A (en) * | 2008-02-04 | 2011-01-05 | 科勒公司 | Fuel delivery system for engine |
| CN102052217A (en) * | 2009-11-05 | 2011-05-11 | 三菱电机株式会社 | Fuel supply device |
| CN202140211U (en) * | 2011-07-18 | 2012-02-08 | 重庆平江实业有限责任公司 | Pump cover of return oil-free electric fuel pump assembly support |
| CN202707324U (en) * | 2012-07-13 | 2013-01-30 | 温州安佳汽车零部件有限公司 | Automatic oil-return-type single oil nozzle automobile electric fuel pump assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952557A (en) * | 2016-06-30 | 2016-09-21 | 浙江锦佳汽车零部件有限公司 | Fuel oil pump assembly of dual-oil-tank system |
| CN105952557B (en) * | 2016-06-30 | 2018-05-22 | 浙江锦佳汽车零部件有限公司 | Double oil tank system fuel oil pump assemblies |
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Application publication date: 20121024 |