CN103195625B - Filter screen device of self-cleaning fuel pump - Google Patents
Filter screen device of self-cleaning fuel pump Download PDFInfo
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- CN103195625B CN103195625B CN201310005773.4A CN201310005773A CN103195625B CN 103195625 B CN103195625 B CN 103195625B CN 201310005773 A CN201310005773 A CN 201310005773A CN 103195625 B CN103195625 B CN 103195625B
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- cylinder body
- sliding plug
- fuel
- screen device
- filter screen
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Abstract
The invention relates to the field of oil supply units for automobiles, and aims to provide a filter screen device of a self-cleaning fuel pump. The filter screen device of the self-cleaning fuel pump comprises a cylinder body, a side fuel pipe with one end fixedly connected with the middle part of the cylinder body, two filter screens fixedly connected with one end of the cylinder body respectively, a sliding plug positioned in the cylinder body and provided with outer diameter matched with the inner diameter of the cylinder body, and two springs; the thickness of the sliding plug is smaller than the inner diameter of the side fuel pipe; the two springs are positioned in the cylinder body and positioned on two sides of the sliding plug; and two ends of each spring are connected with one side ends of one filter screen and the sliding plug respectively. The filter screen device of the self-cleaning fuel pump prevents the filter screens from being blocked, without influencing the normal fuel supply of the fuel pump to the engine.
Description
Technical field
The present invention relates to oil supply device for automobile field, especially a kind of automatically cleaning fuel-pump screen device.
Background technique
Fuel pump is the vitals of automobile, and the impurity in fuel oil can affect fuel pump to the normal fuel injection of motor; Along with increase and the aging aggravation of auto parts and components of vehicle driving mileage, the impurity in fuel oil in fuel tank can be increased gradually.The model utility of Chinese patent notification number CN2700591Y discloses a kind of fuel pump for car; Oil pipe two ends connect together with the oil outlet drive fit of base and pump core respectively, in support, be fixedly connected with pump core, between support top and pump core, there is rubber damping cover, between its underpart and pump core, there is rubber damping seat, the oil intake nozzle interference fit crimping of net-filter assembly and pump core, return tube one end and base socket, the other end and support socket, inlet non return check valve is fixedly mounted in the base apertures of support, and peg graft with pump core and fuel oil sensor respectively in wire harness assembly two ends.The net-filter assembly of this fuel pump for car exists the impurity being filtered to be easily deposited in fuel-pump screen outside and causes filter net jam, thereby affects fuel pump to motor normal fuel injection, the deficiency that causes engine power to decline; In order to solve this fault, must dismantle fuel tank, the filter screen more renewing, very trouble; Therefore, design a kind of filter screen and can not stop up, can not affect fuel pump to the automatically cleaning fuel-pump screen device of motor normal fuel injection, become problem demanding prompt solution.
Summary of the invention
The object of the invention is to exist the impurity be filtered to be easily deposited in fuel-pump screen outside to cause filter net jam in order to overcome the net-filter assembly of current fuel pump, thereby affect fuel pump to engine oil, the deficiency that causes engine power to decline, provide a kind of filter screen can not stop up, can not affect fuel pump to the automatically cleaning fuel-pump screen device of motor normal fuel injection.
Concrete technological scheme of the present invention is:
An automatically cleaning fuel-pump screen device, comprises side oil pipe that cylinder body, one end be fixedly connected with the middle part of cylinder body, two each filter screens that are fixedly connected with one end of cylinder body, is positioned at the cunning that cylinder body and external diameter mate with the internal diameter of cylinder body and fills in and two springs; The thickness of described sliding plug is less than the internal diameter of side oil pipe; Two described springs are positioned at cylinder body and lay respectively at the both sides of sliding plug; The two ends of each spring are connected with a side of sliding plug with a filter screen respectively.When this automatically cleaning fuel-pump screen device is used, the other end of side oil pipe is connected with the entrance point of fuel pump; When automobile is in idling and the middle part of sliding plug in cylinder body during travelling state at the uniform velocity, fuel oil after two strainer filterings, enters fuel pump from side oil pipe from the two ends of cylinder body; When automobile is when giving it the gun state, fuel oil is from the left end of cylinder body after the strainer filtering through being fixedly connected with cylinder body left end, from side oil pipe, enter fuel pump, due to effect of inertia, the fuel oil that sliding plug against the force of the spring moves right and promotes in the cylinder body of sliding plug right side moves right the filter screen that impact is fixedly connected with cylinder body right-hand member, and the impurity that is deposited in filter screen outside is come off; When automobile is during in Reduced Speed Now state, fuel oil is from the right-hand member of cylinder body after the strainer filtering through being fixedly connected with cylinder body right-hand member, from side oil pipe, enter fuel pump, due to effect of inertia, sliding plug against the force of the spring is to left movement and promote fuel oil in the cylinder body of sliding plug left side elliptical gear and the filter screen that cylinder body left end is fixedly connected with left, and the impurity that makes to be deposited in outside filter screen comes off; When automobile recovers at the uniform velocity travelling state, sliding plug moves to the middle part of cylinder body under the effect of spring reset power.This automatically cleaning fuel-pump screen device can not stop up filter screen, can not affect fuel pump to motor normal fuel injection.
As preferably, in described sliding plug, be provided with weightening finish piece.Can increase the inertia of sliding plug.
As preferably, the material of described weightening finish piece is lead or copper billet.Lead or copper billet density are large and be that common used material cost is low.
As preferably, the thickness of described sliding plug be side oil pipe internal diameter 1/4th to 1/2nd.Take into account sliding plug in cylinder body motion stabilization and fuel oil inflow side oil pipe smooth and easy.
As preferably, described side pipe aperture is cylinder diameter 1/3rd to 2/3rds.Fuel oil flow velocity in cylinder body is slower, is convenient to the impurity in filter screen filtering fuel oil and is convenient to the motion in cylinder body of sliding plug the impurity that is deposited in filter screen outside is come off.
Compared with prior art, the invention has the beneficial effects as follows: one. this automatically cleaning fuel-pump screen device can not stop up filter screen, can not affect fuel pump to motor normal fuel injection.Two. in sliding plug, be provided with the inertia that weightening finish piece can increase sliding plug.Three. the material of weightening finish piece is lead or copper billet, and lead or copper billet density are large and be that common used material cost is low.Four. the thickness of sliding plug be side oil pipe internal diameter 1/4th to 1/2nd, take into account sliding plug in cylinder body motion stabilization and fuel oil inflow side oil pipe smooth and easy.Five. side pipe aperture is cylinder diameter 1/3rd to 2/3rds, and fuel oil flow velocity in cylinder body is slower, is convenient to the impurity in filter screen filtering fuel oil and is convenient to the motion in cylinder body of sliding plug the impurity that is deposited in filter screen outside is come off.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
View of the present invention when Fig. 2 is the Accelerating Traveling of Automobiles;
Fig. 3 is car deceleration view of the present invention while travelling.
In figure: cylinder body-1, side oil pipe-2, filter screen-3, sliding plug-4, weightening finish piece-41, spring-5, fuel pump-6.
Embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in Figure 1: a kind of automatically cleaning fuel-pump screen device, the cunning of the internal diameter Spielpassung that comprise the side oil pipe 2 of cylinder body 1, one end and the middle part welding of cylinder body 1, two each filter screens 3 that are connected with one end screw of cylinder body 1, is positioned at cylinder body 1 and external diameter and cylinder body 1 is filled in 4 and two springs 5; The thickness of described sliding plug 4 is less than the internal diameter of side oil pipe 2; Two described springs 5 are positioned at cylinder body 1 and lay respectively at the both sides of sliding plug 4; The two ends of each spring 5 are connected with a side of sliding plug 4 with a filter screen 3 respectively.
In described sliding plug 4, there is weightening finish piece 41.The material of described weightening finish piece 41 is lead or copper billet.The thickness of described sliding plug 4 be side oil pipe 2 internal diameter 1/4th to 1/2nd.Described side oil pipe 2 internal diameters are 1/3rd to 2/3rds of cylinder body 1 internal diameter.In the present embodiment, the material of described sliding plug 4 is steel; The material of described weightening finish piece 41 is lead; The thickness of described sliding plug 4 be side oil pipe 2 internal diameter 1/3rd; Described side oil pipe 2 internal diameters are 1/2nd of cylinder body 1 internal diameter.
When these automatically cleaning fuel-pump screen 3 devices are used, the other end of side oil pipe 2 is connected with the entrance point of fuel pump 6; When automobile is in idling and at the uniform velocity (referring to Fig. 1) during travelling state, the middle part of sliding plug 4 in cylinder body 1, fuel oil after two filter screens 3 filter, enters fuel pump 6 from side oil pipe 2 from the two ends of cylinder body 1; As automobile when giving it the gun state (referring to Fig. 2), fuel oil is after from the left end of cylinder body 1, the filter screen through being fixedly connected with cylinder body 1 left end 3 filters, from side oil pipe 2, enter fuel pump 6, due to effect of inertia, sliding plug 4 overcomes spring 5 resistances to be moved right and promotes fuel oil in sliding plug 4 right side cylinder bodies 1 and move right and impact the filter screen 3 being fixedly connected with cylinder body 1 right-hand member, and the impurity that is deposited in filter screen 3 outsides is come off; When automobile is during in Reduced Speed Now state (referring to Fig. 3), fuel oil is after from the right-hand member of cylinder body 1, the filter screen through being fixedly connected with cylinder body 1 right-hand member 3 filters, from side oil pipe 2, enter fuel pump 6, due to effect of inertia, sliding plug 4 overcomes spring 5 resistances to left movement and promotes fuel oil in sliding plug 4 left side cylinder bodies 1 elliptical gear and the filter screen 3 that cylinder body 1 left end is fixedly connected with left, and the impurity that is deposited in filter screen 3 outsides is come off; When automobile recovers at the uniform velocity travelling state, sliding plug 4 moves to the middle part of cylinder body 1 under spring 5 reposition force effects.
The invention has the beneficial effects as follows: this automatically cleaning fuel-pump screen device can not stop up filter screen, can not affect fuel pump to motor normal fuel injection.In sliding plug, be provided with the inertia that weightening finish piece can increase sliding plug.The material of weightening finish piece is lead, and lead density is large and be that common used material cost is low; The material that is coated on the sliding plug of weightening finish outside piece is that the steel piece of can avoiding increasing weight pollutes fuel oil.The thickness of sliding plug be side oil pipe internal diameter 1/3rd, take into account sliding plug in cylinder body motion stabilization and fuel oil inflow side oil pipe smooth and easy.Side pipe aperture is 1/2nd of cylinder diameter, and fuel oil flow velocity in cylinder body is slower, is convenient to the impurity in filter screen filtering fuel oil and is convenient to the motion in cylinder body of sliding plug the impurity that is deposited in filter screen outside is come off.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All so apparent modifications of the technician to described field, within being included in the scope of this claim.
Claims (5)
1. an automatically cleaning fuel-pump screen device, comprises side oil pipe, two each filter screens that are fixedly connected with one end of cylinder body that cylinder body, one end are fixedly connected with the middle part of cylinder body; It is characterized in that, automatically cleaning fuel-pump screen device also comprises and is positioned at sliding plug and two springs that cylinder body and external diameter mate with the internal diameter of cylinder body; The thickness of described sliding plug is less than the internal diameter of side oil pipe; Two described springs are positioned at cylinder body and lay respectively at the both sides of sliding plug; The two ends of each spring are connected with a side of sliding plug with a filter screen respectively.
2. automatically cleaning fuel-pump screen device according to claim 1, is characterized in that: in described sliding plug, be provided with weightening finish piece.
3. automatically cleaning fuel-pump screen device according to claim 2, is characterized in that: the material of described weightening finish piece is lead or copper billet.
4. according to the automatically cleaning fuel-pump screen device described in claim 1 or 2 or 3, it is characterized in that: 1/4th to 1/2nd of the internal diameter that the described sliding thickness of filling in is side oil pipe.
5. according to the automatically cleaning fuel-pump screen device described in claim 1 or 2 or 3, it is characterized in that: described side pipe aperture is cylinder diameter 1/3rd to 2/3rds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005773.4A CN103195625B (en) | 2013-01-07 | 2013-01-07 | Filter screen device of self-cleaning fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005773.4A CN103195625B (en) | 2013-01-07 | 2013-01-07 | Filter screen device of self-cleaning fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195625A CN103195625A (en) | 2013-07-10 |
| CN103195625B true CN103195625B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310005773.4A Active CN103195625B (en) | 2013-01-07 | 2013-01-07 | Filter screen device of self-cleaning fuel pump |
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| Country | Link |
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| CN (1) | CN103195625B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113324801B (en) * | 2021-05-29 | 2022-08-19 | 林孔亮 | Sampler for detecting content of two insects in water and sampling method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1507882A1 (en) * | 1966-12-22 | 1970-01-15 | Gaselin Veb | Device for displaying the degree of contamination of gas dust filters |
| DE3027997C2 (en) * | 1980-07-24 | 1983-10-27 | Judo Wasseraufbereitung Gmbh, 7057 Winnenden | Self-cleaning filter for water supply systems |
| DE10063283A1 (en) * | 2000-12-19 | 2002-06-20 | Ina Schaeffler Kg | Sieve filters for fluid lines, in particular for hydraulic pressure lines in internal combustion engines |
| CN101766939B (en) * | 2008-12-31 | 2012-09-05 | 华为技术有限公司 | Dust removal device, equipment and system |
| CN201675864U (en) * | 2010-04-01 | 2010-12-22 | 隋军 | Central dust collector host machine |
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| CN103195625A (en) | 2013-07-10 |
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Effective date of registration: 20190321 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |