CN203488298U - Electric fuel pump core suitable for being used in biofuel - Google Patents
Electric fuel pump core suitable for being used in biofuel Download PDFInfo
- Publication number
- CN203488298U CN203488298U CN201320628380.4U CN201320628380U CN203488298U CN 203488298 U CN203488298 U CN 203488298U CN 201320628380 U CN201320628380 U CN 201320628380U CN 203488298 U CN203488298 U CN 203488298U
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- oil
- end cap
- fuel
- casing
- biofuel
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- Expired - Fee Related
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Abstract
The utility model discloses an electric fuel pump core suitable for being used in biofuel. A zinc-nickel alloy coating (1c) is arranged on the surface of a machine shell (1). Seven concave oblique plane grooves (3a) are distributed in the outer circumference of an oil inlet end cover (3), notches (1a) which are the same as the concave oblique plane grooves (3a) in number and correspond to the concave oblique plane grooves (3a) in position are formed in the right end of the machine shell (1), the notches (1a) and the concave oblique plane grooves (3a) are in rivet connection through radial cold extruding, and an inner hemming necking-down structure (1b) is arranged at the left end of the machine shell (1). The corrosion resistance performance of the structure is high, corrosion of biofuel (M100 and E100) can be resisted, the demand for being used in the biofuel (M100 and E100) can be met, attaching of the contact faces of the oil inlet end cover and an oil outlet end cover is tight and reliable, and the quality of products is high.
Description
Technical field
The utility model relates to the pith in engine fuel system---electric fuel punp, is specifically related to the pump cored structure of electric fuel punp.
Background technique
The overlay coating of electric fuel punp pump core generally adopts zinc electroplating with iridescent yellow chromate conversion coating to process, and the pump core in automobile electronic fuel oil jet fuel oil supply system need to be immersed in working medium---in gasoline, bio-fuel-oil (M100, E100).Not moisture in 93# gasoline, do not belong to corrosive liquids, can normally use.But bio-fuel-oil (M100, E100) alcohols content is high, contain minor amount of water, corrosivity is stronger, if pump core is immersed in bio-fuel-oil (M100, E100), its casing surface there will be corrosion and ablation phenomenon.
Electric fuel punp pump core is used the antiseptic power of its overlay coating can use by salt mist experiment more than 1000h in bio-fuel-oil, and the problem existing is at present: surperficial zinc electroplating with iridescent yellow chromate conversion coating cannot meet salt mist experiment standard.
In addition, the required pressure of electric fuel punp pump core work is mainly to fit tightly generation by fuel-displaced end cap and oil inlet end lid, if two laminating end faces of fuel-displaced end cap and oil-feed end cap are gapped or laminating is not tight, the required pressure of oil-fired system will reduce, thereby causes product failure.
Model utility content
The purpose of this utility model is to provide a kind of can being immersed in bio-fuel-oil, and surface there will not be the electric fuel punp pump core of corrosion and ablation, meanwhile, solves gapped between fuel-displaced end cap and oil-feed end cap, untight problem of fitting.
For this reason, the technological scheme that the utility model adopts is: a kind of electric fuel punp pump core that is applicable to use in bio-fuel-oil, comprise casing (1), be arranged on motor (5) and core group (6) in casing (1), described motor (5) is positioned at the left side of core group (6), described core group (6) comprises from left to right the coaxial fuel-displaced end cap (2) arranging successively, impeller (4) and oil-feed end cap (3), and the left side of the right side of fuel-displaced end cap (2) and oil-feed end cap (3) fits together, key is: the surface of described casing (1) is provided with zn-ni alloy deposits (1c), on the excircle of described oil-feed end cap (3), be evenly equipped with seven recessed surface grooves (3a), the otch (1a) that the right-hand member of described casing (1) is provided with recessed surface groove (3a) quantity equates, position is corresponding, and be riveted together by Radial Cold Extrusion and recessed surface groove (3a), the left end of described casing (1) is provided with interior crimping closing-in structure (1b).
By the coating of existing casing outer surface is replaced with to zn-ni alloy deposits by zinc electroplating with iridescent yellow chromate conversion coating layer, adopt zn-ni alloy deposits, principle is sacrificial anode protection admiro.Admiro, by electrochemical method, adsorbs by heavy current impact electrolysis under the effect of metal surface active ion, at workpiece surface, forms the very negative admiro protective film of a kind of current potential.Its coating main feature is:
(1) electrode potential of this coating will be born compared with the electrode potential of iron and steel, and therefore this alloy layer belongs to sacrificial anode protective coating, and in the situation that coating sustains damage, injury region coating around still can be protected matrix effectively, exempts from cathodic corrosion;
(2) this coating has excellent weather-resistant and seawater corrosion performance, particularly be applicable to high hot, high and cold, strong damp and hot torrid areas, its corrosion resisting property promotes greatly, neutral salt spray test shows: the zn-ni alloy deposits of thickness 5～8um occurs that the time of red rust is more than 1300 hours, in addition in zn-ni alloy deposits after there is red rust, and the expansion of red rust wants much slow compared with zinc electroplating with iridescent yellow chromate conversion coating layer;
(3) the metallic zinc coating after passivation just decomposes with its passivating film blackening below at 100～150 ℃, corrosion resistance sharply declines, and zn-ni alloy deposits after passivation can resistance to 200～250 ℃ high temperature, heat resistance is compared with metallic zinc floor height more than 50～100 ℃, neutral salt spray test shows: the zn-ni alloy deposits after passivation is after the temperature aging baking in 2 hours of 200 ℃, continuous spraying salt fog, its red rust time of occurrence can be more than 1400 hours;
(4) can to zn-ni alloy deposits, carry out color processing according to user's usage requirement, chromaticness has several as follows: white, colour, black etc., its surperficial chromaticness quality does not exert an influence to the corrosion resistance of coating.
In addition, at oil inlet end, cover seven recessed surface grooves are set, the otch corresponding with recessed surface groove is set on casing, after oil-feed end cap normally press-fits, utilize the cutter equate with recessed surface groove quantity simultaneously radial contraction push motor casing, and be passed to the oil-feed end cap face groove that concaves.The rigidity resilience of otch rear motor shell is little, reaches similar plastic deformation effect, makes oil-feed end cap and the laminating of fuel-displaced end cap surface of contact more closely reliable, and quality of product is guaranteed.
The beneficial effects of the utility model are: the decay resistance of this structure is very strong, can stand the corrosion of bio-fuel-oil (M100, E100), meet the requirement of using in bio-fuel-oil (M100, E100); Oil-feed end cap and the laminating of fuel-displaced end cap surface of contact are closely reliable, and quality of product is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the part sectioned view of casing in Fig. 1
Fig. 3 is the right elevation of Fig. 1.
Fig. 4 is the sectional view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
In conjunction with Fig. 1---shown in Fig. 4, a kind of electric fuel punp pump core that is applicable to use in bio-fuel-oil, mainly by casing 1, the motor 5 and the core group 6 that are arranged in casing 1 form.
On the excircle of oil-feed end cap 3, be evenly equipped with seven recessed surface groove 3a, the otch 1a that the right-hand member of casing 1 is provided with recessed surface groove 3a quantity equates, position is corresponding, and be riveted together by Radial Cold Extrusion and recessed surface groove 3a, thereby realized the fixing of casing 1 right-hand member and oil-feed end cap 3, guaranteed that fuel-displaced end cap 2 fits tightly with the both ends of the surface of oil-feed end cap 3 together with.
Being arranged on the recessed surface groove 3a on oil-feed end cap 3, is die cast.The left end of casing 1 is connected with working of plastics, is therefore provided with interior crimping closing-in structure 1b.
Claims (1)
1. an electric fuel punp pump core that is applicable to use in bio-fuel-oil, comprise casing (1), be arranged on motor (5) and core group (6) in casing (1), described motor (5) is positioned at the left side of core group (6), described core group (6) comprises from left to right coaxial fuel-displaced end cap (2), impeller (4) and the oil-feed end cap (3) arranging successively, and the left side of the right side of fuel-displaced end cap (2) and oil-feed end cap (3) fits together, and it is characterized in that: the surface of described casing (1) is provided with zn-ni alloy deposits (1c); On the excircle of described oil-feed end cap (3), be evenly equipped with seven recessed surface grooves (3a), the otch (1a) that the right-hand member of described casing (1) is provided with recessed surface groove (3a) quantity equates, position is corresponding, and be riveted together by Radial Cold Extrusion and recessed surface groove (3a), the left end of described casing (1) is provided with interior crimping closing-in structure (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628380.4U CN203488298U (en) | 2013-10-11 | 2013-10-11 | Electric fuel pump core suitable for being used in biofuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628380.4U CN203488298U (en) | 2013-10-11 | 2013-10-11 | Electric fuel pump core suitable for being used in biofuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488298U true CN203488298U (en) | 2014-03-19 |
Family
ID=50259136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628380.4U Expired - Fee Related CN203488298U (en) | 2013-10-11 | 2013-10-11 | Electric fuel pump core suitable for being used in biofuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488298U (en) |
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2013
- 2013-10-11 CN CN201320628380.4U patent/CN203488298U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20191011 |