CN205663547U - Electric fuel pump - Google Patents
Electric fuel pump Download PDFInfo
- Publication number
- CN205663547U CN205663547U CN201620538844.6U CN201620538844U CN205663547U CN 205663547 U CN205663547 U CN 205663547U CN 201620538844 U CN201620538844 U CN 201620538844U CN 205663547 U CN205663547 U CN 205663547U
- Authority
- CN
- China
- Prior art keywords
- oil
- base
- pump head
- aluminum shell
- pump
- 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 - Fee Related
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to an electric fuel pump, including aluminum casing, be equipped with the inner chamber in the aluminum casing, the inner chamber is both ends opening setting, and the aluminum casing both ends are equipped with pump head cover, base, pump head cover is equipped with the oil -out, pump head cover oil -out department still is connected with the pump head, pump head cover still is equipped with O shape sealing washer with the aluminum casing junction, the position that the base corresponds the oil -out is equipped with the oil inlet, interior intracavity be equipped with O shape sealing washer, carbon brush frame, magnetic shoe, oil pump and rotor, its characterized in that: the base is the ring form, the base inside callipers is equipped with the filter screen, the filter screen still is connected with the base relief valve for the one side of cavity.
Description
Technical field
This utility model relates to a kind of automobile component, is specifically related in automobile oil supply system the electric fuel punp of application.
Background technology
Electric fuel punp is the critical piece of vehicle fuel pump assembly, and fuel oil pump assembly is arranged in automotive oil tank, and it is
Automobile oil feed line provides pressure oil, and the effect of electric fuel punp is that the fuel oil existing in automotive oil tank is delivered to fuel injector
In fuel pipe, the fuel oil of supply fuel injector certain pressure, fuel injector, according to the instruction oil spout of ECU, drives automobile engine to enter
Row work.The electric fuel punp of conventional belt roller oil pump assembly, roller oil pump assembly is by the pump housing, cylindrical rollers and rotation
Pump core etc. form, and five rollers can radially slide in the groove rotating pump core, rotate pump core and there is certain bias with the pump housing, turn
Dynamic pump core rotates under the driving of armature spindle, and under the influence of centrifugal force, roller is pressed on the internal circular surfaces of the pump housing, forms five
Individual relatively independent annular seal space;During rotation, the volume of each annular seal space constantly changes, and when oil-in, volume increases, shape
Becoming certain vacuum, by the gasoline suction pump through filtering, at oil-out, volume diminishes, and pressure raises, and is pumped out by gasoline
Outside pump.The electric fuel punp of conventional belt roller oil pump assembly has the disadvantage that structure is relative complex, and assembling is also inconvenient,
The charge oil pressure stability of fuel pump is the most poor, and especially roller oil pump assembly self is without relief valve, during fuel pump fuel feeding
Easily cause pump housing pressure transient, thus affect the stability of fuel feeding oil pressure.
Utility model content
In view of the deficiencies in the prior art, this utility model provides a kind of simple in construction, easy to assembly, raising fuel feeding oil pressure
Stability, the electric fuel punp of length in service life.
For achieving the above object, this utility model provides following technical scheme: a kind of electric fuel punp, includes outside aluminum
Shell, is provided with inner chamber in described aluminum shell, described inner chamber is that both ends open is arranged, and aluminum shell two ends are provided with pump head lid, base, described
Pump head is covered with oil-out, and described pump head lid is also associated with pump head, and described pump head lid and aluminum shell junction are additionally provided with O shape and seal
Circle, the position of described base correspondence oil-out is provided with oil-in, described interior intracavity be provided with O-ring seals, carbon brush holder, magnetic shoe,
Oil pump and rotor, it is characterised in that: described base is that in one end internal diameter is less than the circular of other end internal diameter, described base, card sets
Drainage screen, described drainage screen is had to be also associated with base relief valve relative to the one side of cavity.
Using technique scheme, directly arranging drainage screen on base oil-in can more preferable miscellaneous in filter fuel
Matter, the base relief valve connected on drainage screen substantially increases stability during fuel pump fuel feeding.
Above-mentioned a kind of electric fuel punp can be further arranged to: described base relief valve includes valve seat, spool, bullet
Spring, described valve seat is connected with drainage screen, and described spring one end is conflicted with valve seat, and the other end is set on spool, described spool phase
It is connected on oil pump for connecting the other end of the end of spring.
Using technique scheme, valve seat is connected with the drainage screen on base, and spool is directly connected on oil pump, Ke Yigeng
Pressure release timely.
Above-mentioned a kind of electric fuel punp can be further arranged to: described aluminum shell connects the internal diameter of base one end and is less than
Connecting the internal diameter of pump head lid one end, described aluminum shell is additionally provided with O-ring seals at connection oil pump.
Use technique scheme, in the cavity of aluminum shell, connect base position one O-ring seals is set, improve whole
The sealing of body, aluminum shell connects internal diameter one step of little formation than the other end of base position, and O-ring seals can well
It is placed on this step.
Above-mentioned a kind of electric fuel punp can be further arranged to: is provided with orthogonal support bar in the middle of described base.
Use technique scheme, two mutually perpendicular support chips of band are set in the middle of disc base, it is provided that give
The support that drainage screen is certain so that drainage screen will not be flushed to base exterior because oil pressure is excessive.Support chip also improves to be let out
The stability of pressure valve, will make relief valve be rushed out base because of oil pressure is excessive.
Above-mentioned a kind of electric fuel punp can be further arranged to: the material of described O-ring seals is fluorubber.
Use technique scheme, the material of O-ring seals is set to fluorubber, because fluorubber has the most resistance to
Hot, non-oxidizability, oil resistivity, corrosion resistance and resistance to weathering, be extremely applicable to auto parts and components.
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model embodiment.
Fig. 2 is the base front elevational schematic of this utility model embodiment.
Detailed description of the invention
See shown in Fig. 1, Fig. 2: a kind of electric fuel punp, include aluminum shell 500, in being provided with in described aluminum shell 500
Chamber 700, inwardly there is band bound edge 501 described aluminum shell 500 one end, and the other end designing one end relative to bound edge 501 is that opening sets
Putting, aluminum shell 500 two ends are provided with pump head lid 100, base 110, and described pump head lid 100 is provided with oil-out 101, described pump head lid
100 are also associated with pump head 141, and described pump head lid 100 is additionally provided with O-ring seals 200, described base with aluminum shell 500 junction
The position of 110 corresponding oil-outs 101 is provided with oil-in, is provided with O-ring seals 200 and O-ring seals in described inner chamber 700
900, carbon brush holder 300, magnetic shoe 600, oil pump 800 and rotor 400, described base 110 is less than other end internal diameter for one end internal diameter
Circular, it is arranged with drainage screen 112 in described base 110, described drainage screen 112 is also associated with base relative to the one side of cavity
Relief valve 111.Described base relief valve 111 includes valve seat 123, spool 121, spring 122, described valve seat 123 and filtration
Net 112 connects, and conflicts with valve seat 123 in described spring 122 one end, and the other end is set on spool 121, and described spool 121 is relative
The other end in the end connecting spring 122 is connected on oil pump 800.It is provided with orthogonal support bar in the middle of described base 110
111。
Claims (5)
1. an electric fuel punp, includes aluminum shell, is provided with inner chamber in described aluminum shell, and inwardly there is band described aluminum shell one end
Bound edge, the other end designing one end relative to bound edge is that opening is arranged, and aluminum shell two ends are provided with pump head lid, base, described pump head
Being covered with oil-out, described pump head lid is also associated with pump head, and described pump head lid and aluminum shell junction are additionally provided with O-ring seals,
The position of described base correspondence oil-out is provided with oil-in, and described interior intracavity is provided with O-ring seals, carbon brush holder, magnetic shoe, oil pump
And rotor, it is characterised in that: described base is that one end internal diameter is less than the circular of other end internal diameter, is arranged with in described base
Filter screen, described drainage screen is also associated with base relief valve relative to the one side of cavity.
A kind of electric fuel punp the most according to claim 1, it is characterised in that: described base relief valve includes valve
Seat, spool, spring, described valve seat is connected with drainage screen, and described spring one end is conflicted with valve seat, and the other end is set on spool,
Described spool is connected on oil pump relative to the other end of the end connecting spring.
3. according to claim 1 or described a kind of electric fuel punp, it is characterised in that: described aluminum shell connects base one end
Internal diameter less than connecting the internal diameter of pump head lid one end, described aluminum shell is additionally provided with O-ring seals connecting at oil pump.
A kind of electric fuel punp the most according to claim 3, it is characterised in that: it is provided with orthogonal in the middle of described base
Support bar.
A kind of electric fuel punp the most according to claim 4, it is characterised in that: the material of described O-ring seals is fluorine
Rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620538844.6U CN205663547U (en) | 2016-06-03 | 2016-06-03 | Electric fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620538844.6U CN205663547U (en) | 2016-06-03 | 2016-06-03 | Electric fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205663547U true CN205663547U (en) | 2016-10-26 |
Family
ID=57156222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620538844.6U Expired - Fee Related CN205663547U (en) | 2016-06-03 | 2016-06-03 | Electric fuel pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205663547U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111692091A (en) * | 2019-03-13 | 2020-09-22 | 株式会社捷太格特 | Pump device |
-
2016
- 2016-06-03 CN CN201620538844.6U patent/CN205663547U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111692091A (en) * | 2019-03-13 | 2020-09-22 | 株式会社捷太格特 | Pump device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20190603 |
|
CF01 | Termination of patent right due to non-payment of annual fee |