CN201377370Y - Electric fuel pump - Google Patents
Electric fuel pump Download PDFInfo
- Publication number
- CN201377370Y CN201377370Y CN200920073743U CN200920073743U CN201377370Y CN 201377370 Y CN201377370 Y CN 201377370Y CN 200920073743 U CN200920073743 U CN 200920073743U CN 200920073743 U CN200920073743 U CN 200920073743U CN 201377370 Y CN201377370 Y CN 201377370Y
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- CN
- China
- Prior art keywords
- housing
- oil
- oiled
- plate
- permanent magnet
- 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, which comprises a shell, a permanent magnet motor arranged in the shell, a fuel outlet plate made of polyphenylene sulfide material, a fuel outlet plate made of polyphenylene sulfide material, impellers and lubrication grooves. One end of the fuel inlet plate is arranged in the shell, the other end is arranged outside the shell, and protrusions which are arranged at the center of the end face of the fuel inlet plate in the shell and have the thrusting function contact with the rotating shaft of the permanent magnet motor; the impellers are in clearance fit with the rotating shaft of the permanent magnet motor and are arranged between the fuel inlet plate and the fuel outlet plate; and the lubrication grooves with the depth of 20-500mum are respectively arranged at the inner sides of the working faces of the fuel inlet plate and the fuel outlet plate, and the diameter of the two lubrication grooves is the same. The electric fuel pump can effectively improve the wear resistance of the fuel inlet plate and the fuel outlet plate, prolongs the service life of the electric fuel pump, and is applicable to the fuel system of automobiles and motorcycles.
Description
Technical field
The utility model relates to a kind of electric fuel punp that is used for automobile, motorcycle fuel system.
Background technique
Electric fuel punp is that the oil-fired system for automobile, motorcycle provides enough vitals with authorized pressure fuel oil.
Existing electric fuel punp mainly by housing, permanent magnet motor, oil outlet, oil-feed plate, go out parts such as oiled-plate method, impeller and form.Wherein, the oil-feed plate adopts aluminum alloy material mostly with the material that goes out oiled-plate method.The shortcoming of this electric fuel punp is that price is higher, and wear resistance is relatively poor.
For solving out the wear resistance problem of oiled-plate method, oil-feed plate,, on the oil-feed plate, thrust bearing is set though can in the axis hole that goes out oiled-plate method of above-mentioned electric fuel punp, sliding bearing be set; But sliding bearing and thrust bearing adopt copper and steel material mostly, work in the fuel oil environment for a long time, are corroded by sulphur in the oil and acidic materials easily, and the armature locking of whole electric fuel punp or surface friction drag are strengthened, and performance declines to a great extent; In addition, the impeller of electric fuel punp and must very little (10～30 μ m) into and out of the gap between the oiled-plate method, and fuel oil at high temperature easily forms colloid, makes impeller and clings into and out of oiled-plate method, causes electric fuel punp early failue.
(open day: May 24 nineteen ninety-five) disclose a kind of Vehicular electric fuel pump, its fuel-displaced end plate, inside and outside rotor adopted engineering plastics to make to China utility model patent specification CN2198139Y, therefore can not corroded by the acidic materials in the oil.But this electric fuel oil pump structure more complicated is processed and assembles difficult; Also to consider the matching problem that is connected with the d.c. motor rotating shaft.
The model utility content
The technical problems to be solved in the utility model provides a kind of electric fuel punp, and it can effectively improve the oil-feed plate and go out the wear resistance of oiled-plate method, prolongs the working life of electric fuel punp.
For solving the problems of the technologies described above, electric fuel punp of the present utility model, comprise a housing, be arranged on the permanent magnet motor in the housing, go out oiled-plate method with the employing polyphenyl thioether material of permanent magnet motor rotating shaft Spielpassung setting is made, this all side that go out oiled-plate method is provided with and snaps in step, and this snaps in step and snaps in the housing, goes out oiled-plate method and fixedlys connected with housing; Be positioned at described fuel-displaced integrated circuit board and go into the uniform a plurality of support protrusion of all sides of step; The oil-feed plate that adopts polyphenyl thioether material to make, the one end is located in the housing, and the other end is positioned at outside the housing, and its projection and permanent magnet motor rotating shaft of end face center thrust function that is positioned at housing is inconsistent; With the impeller that permanent magnet motor rotating shaft Spielpassung is provided with, this impeller is at the oil-feed plate and go out between the oiled-plate method; Wherein:
Be positioned at described oil-feed plate and go out oiled-plate method working surface inboard, respectively be provided with the lubrication groove of dark 20～500 μ m, and the diameter of two lubrication grooves is identical.
Adopt electric fuel punp of the present utility model, since the oil-feed plate with go out oiled-plate method working surface inboard, respectively be provided with the lubrication groove of dark 20～500 μ m, can effectively form oil film between working surface and the impeller, make working surface obtain effectively lubricating, improved impeller and oil-feed plate and the wear resistance that goes out oiled-plate method.
In addition, oil-feed plate and go out oiled-plate method and adopt polyphenyl thioether material to make with good corrosion resistance and wear resistance, rolling bearing and thrust bearing have been saved, this material itself aluminum alloy relatively is relatively more cheap again, therefore both reduced cost, solved the wear-resistant and corrosion-resistant problem of axle again with bearing.
Go into the uniform a plurality of projectioies of all sides of step at fuel-displaced integrated circuit board, can use the amount of deformation that the working surface distortion of oiled-plate method assembling back meets design is the requirement of 1～3 μ m, prevents to produce to press-fit problem on deformation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural drawing of the utility model electric fuel punp;
Fig. 2 is the fuel-displaced composition that hardens of the utility model electric fuel punp;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the oil-feed of the utility model electric fuel punp composition that hardens.
Embodiment
As shown in Figure 1, electric fuel punp of the present utility model comprise permanent magnet motor 1, housing 2, go out oiled-plate method 3, oil-feed plate 4 and impeller 5.Described permanent magnet motor 1 is arranged in the housing 2.
In conjunction with shown in Figure 2, describedly go out oiled-plate method 3 and oil-feed plate 4 adopts polyphenyl thioether materials to make.The center that is positioned at oiled-plate method 3 is provided with an axis hole 31, and the rotating shaft 11 of using oiled-plate method 3 and permanent magnet motor 1 realizes Spielpassung, and the rotation of supporting revolving shaft 11.
The described working surface inboard that goes out oiled-plate method 3 is provided with the lubrication groove 34 of dark 20～500 μ m, and the outside that is positioned at this lubrication groove 34 is provided with an oil groove 33; Sealing surface 35 monolateral width between described lubrication groove 34 and the oil groove 33 are less than 3mm; Make and easily cling area and only be reduced to, solved impeller effectively and gone out the problem of being clung by colloid between the oiled-plate method 3 to original 40%.
The described all sides that go out oiled-plate method 3 are provided with and snap in step 32.This snaps in step 32 and snaps in the housing 2, uses oiled-plate method 3 and fixedlys connected with housing 2.
In conjunction with shown in Figure 4, described oil-feed plate 4 one ends are located in the housing 2 again, and the other end is positioned at outside the housing 2, and its projection 42 of end face center thrust function that is positioned at housing 2 is inconsistent with the rotating shaft 11 of permanent magnet motor 1.Saved like this and be embedded in the thrust bearing that adopts in the oil-feed plate that aluminum alloy material makes in the prior art.Described protruding 42 are depressed in the end face of oil-feed plate 4.
The working surface inboard of described oil-feed plate 4 is provided with the lubrication groove 44 of dark 20～500 μ m, the outside that is positioned at this lubrication groove 44 is provided with an oil groove 43, sealing surface 45 monolateral width between lubrication groove 44 and the oil groove 43 are less than 3mm, make and easily cling area and only be reduced to, solved the problem of being clung by colloid between impeller and the oil-feed plate 4 effectively to original 40%.
Going out between oiled-plate method 3 and the oil-feed plate 4, be fixed with impeller 5 in the mode of Spielpassung, and driving this impeller 5 by permanent magnet motor 1 and rotate with the rotating shaft 11 of permanent magnet motor 1.
Referring to shown in Figure 3, be laid with at least 3 support protrusion 36 in all sides that snap in step 32 that go out oiled-plate method 3; In a preferred embodiment of the present utility model, the support protrusion that snaps in step 32 all sides 36 that is located at out oiled-plate method 3 is 5.When going out the snapping in step 32 and snap in the housing 2 of oiled-plate method 3, have only described support protrusion 36 closely to contact like this with housing 2; Be subjected to push around the housing 2, the position that deformation takes place just concentrates on the support protrusion 36.Since support protrusion 36 circumferentially leave the deformation space, the deformation of support protrusion 36 will be to its circumferential both sides expansion, thereby avoided the distortion of arching upward of intermediate portion, after reaching assembling, gone out the small requirement of oiled-plate method working surface distortion, guaranteed the precision of electric fuel punp assembling.
Electric fuel punp of the present utility model is corrosion-resistant, and is wear-resistant, anti-colloid, and cost is low, and is simple in structure, easy for installation, can guarantee quality and the usability of electric fuel punp in the long-time running process, prolongs its working life.
More than by embodiment content of the present utility model is had been described in detail, formation is to restriction of the present utility model but these are not.To one skilled in the art, protection domain of the present utility model also comprises various distortion and the improvement that those have been done under the situation that does not break away from the utility model principle.
Claims (2)
1, a kind of electric fuel punp, comprise a housing, be arranged on the permanent magnet motor in the housing, go out oiled-plate method with the employing polyphenyl thioether material of permanent magnet motor rotating shaft Spielpassung setting is made, this all side that go out oiled-plate method is provided with and snaps in step, this snaps in step and snaps in the housing, goes out oiled-plate method and fixedlys connected with housing; Be positioned at described fuel-displaced integrated circuit board and go into the uniform a plurality of support protrusion of all sides of step; The oil-feed plate that adopts polyphenyl thioether material to make, the one end is located in the housing, and the other end is positioned at outside the housing, and its projection and permanent magnet motor rotating shaft of end face center thrust function that is positioned at housing is inconsistent; With the impeller that permanent magnet motor rotating shaft Spielpassung is provided with, this impeller is at the oil-feed plate and go out between the oiled-plate method; It is characterized in that:
Be positioned at described oil-feed plate and go out oiled-plate method working surface inboard, respectively be provided with the lubrication groove of dark 20～500 μ m, and the diameter of two lubrication grooves is identical.
2, electric fuel punp according to claim 1 is characterized in that: be positioned at described oil-feed plate and respectively be provided with an oil groove with the outside that goes out the lubrication groove of oiled-plate method, the monolateral width of the sealing surface between described lubrication groove and the oil groove is less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073743U CN201377370Y (en) | 2009-04-03 | 2009-04-03 | Electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920073743U CN201377370Y (en) | 2009-04-03 | 2009-04-03 | Electric fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377370Y true CN201377370Y (en) | 2010-01-06 |
Family
ID=41517477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920073743U Expired - Lifetime CN201377370Y (en) | 2009-04-03 | 2009-04-03 | Electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377370Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839197A (en) * | 2010-04-27 | 2010-09-22 | 联合汽车电子有限公司 | Alcohol-resistance gasoline electric fuel pump |
| CN102581597A (en) * | 2012-03-09 | 2012-07-18 | 上海克来机电自动化工程有限公司 | Push mounting fixture for oil inlet and outlet plates of electric fuel pumps |
| WO2013181997A1 (en) * | 2012-06-04 | 2013-12-12 | 广州竞标汽车零部件制造有限公司 | External flatbed fuel pump fuel-dispensing plate, manufacturing process, and impeller matching fuel-dispensing plate |
| CN111664088A (en) * | 2020-05-18 | 2020-09-15 | 上海盈智汽车零部件有限公司 | High-wear-resistance and high-precision diesel gear pump |
-
2009
- 2009-04-03 CN CN200920073743U patent/CN201377370Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839197A (en) * | 2010-04-27 | 2010-09-22 | 联合汽车电子有限公司 | Alcohol-resistance gasoline electric fuel pump |
| CN101839197B (en) * | 2010-04-27 | 2013-02-06 | 联合汽车电子有限公司 | Alcohol-resistance gasoline electric fuel pump |
| CN102581597A (en) * | 2012-03-09 | 2012-07-18 | 上海克来机电自动化工程有限公司 | Push mounting fixture for oil inlet and outlet plates of electric fuel pumps |
| CN102581597B (en) * | 2012-03-09 | 2014-04-09 | 上海克来机电自动化工程有限公司 | Push mounting fixture for oil inlet and outlet plates of electric fuel pumps |
| WO2013181997A1 (en) * | 2012-06-04 | 2013-12-12 | 广州竞标汽车零部件制造有限公司 | External flatbed fuel pump fuel-dispensing plate, manufacturing process, and impeller matching fuel-dispensing plate |
| CN111664088A (en) * | 2020-05-18 | 2020-09-15 | 上海盈智汽车零部件有限公司 | High-wear-resistance and high-precision diesel gear pump |
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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: 20100106 |