CN202914326U - Outlaid fuel pump for motor bicycle - Google Patents
Outlaid fuel pump for motor bicycle Download PDFInfo
- Publication number
- CN202914326U CN202914326U CN 201220652471 CN201220652471U CN202914326U CN 202914326 U CN202914326 U CN 202914326U CN 201220652471 CN201220652471 CN 201220652471 CN 201220652471 U CN201220652471 U CN 201220652471U CN 202914326 U CN202914326 U CN 202914326U
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- CN
- China
- Prior art keywords
- pump
- fuel pump
- motor
- blade
- housing
- 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 outlaid fuel pump for a motor bicycle. The outlaid fuel pump for the motor bicycle comprises a shell body, a pump body, and a motor, wherein the pump body and the motor are arranged inside the shell body, a vane wheel is arranged inside the pump body, a rotary shaft of the motor penetrates into the pump body and is connected with the vane wheel, an oil inlet mouth of the fuel pump is formed in one side, close to the vane wheel, on the shell body, an oil outlet is formed in one side, far away from the vane wheel, on the shell body, and an oil line which enables fuel to flow is reserved between the motor and the inner wall of the shell body. Due to the fact the vane wheel which is reasonable in structure is used, the fuel pump is enabled to have suction which is identical to the suction of a gear pump, noise and pressure pulsation are also reduced, and compared with the machining process of the gear pump, the machining process of the fuel pump is simple and low in cost.
Description
Technical field
The utility model relates to the fuel pump technical field, relates in particular to the external fuel oil pump structure that a kind of motorcycle uses.
Technical background
The motor fuel pump has external and built-in two kinds of structures, built-in motor-vehicle fuel pump is because be immersed in the oil tank fuel, the suction that needs requires low, and external motor fuel pump is because outside at fuel tank, need larger suction, so external pump generally adopts the large gear pump of suction in the motor-vehicle fuel pump in past, internal pump adopts the little vane pump of suction.But the external gear pump of motorcycle fuel has a lot of defectives: complex structure, difficulty of processing is high, the assembling difficulty, noise is large in the use, pressure pulsation is large, operational safety reduces greatly, thus the external gear pump of motor to low noise, the high stability future development is a urgent problem of motor-vehicle fuel pump.
Summary of the invention
The purpose of this utility model is: the deficiency for prior art exists provides a kind of motorcycle rational in infrastructure, that noise is low and pressure pulsation is less external fuel pump.
For realizing the purpose of the utility model, be achieved by the following technical solutions: the external fuel pump of a kind of motorcycle, include housing and be arranged on the housing interior pump housing and motor, be provided with blade wheel in the described pump housing, the rotating shaft of described motor stretches in the pump housing and is connected with blade wheel, the filler opening of fuel pump is located on the housing side near blade wheel, and oil outlet is located on the housing away from a side of blade wheel, leaves the oil circuit that flows through for fuel oil between motor and the inner walls.
As preferred version: be provided with 25-30 blade on the described blade wheel, blade is circumference array and distributes take the blade wheel center as the center of circle, and described filler opening position is corresponding with the position of blade.Use the blade of this kind structure can guarantee enough large suction.
As preferred version: the periphery of the circumference array that described each blade consists of is 1.0-3.0mm apart from the distance at blade wheel edge.
As preferred version: described filler opening bore is greater than the bore of oil outlet.
Compared with prior art, the beneficial effects of the utility model are: owing to used structure reasonably to be with blade wheel, fuel pump is had with the equal suction of gear pump, reduced again noise and pressure pulsation, gear pump manufacturing process is more simple relatively, and cost is low.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model.
Fig. 2 is the structural representation of blade.
1, filler opening; 2, the pump housing; 3, rotating shaft; 4, oil circuit; 5, conductor interface; 6, oil outlet; 7, housing; 8, motor; 9, blade wheel; 91, blade.
Embodiment
The below makes a detailed explanation embodiment of the present utility model with reference to the accompanying drawings.
According to shown in Figure 1, the external fuel pump of the described a kind of motorcycle of present embodiment, include housing 7 and be arranged on the pump housing 2 and motor 8 in the housing 7, be provided with blade wheel 9 in the described pump housing 2, the rotating shaft 3 of described motor 8 stretches in the pump housing 2 and is connected with blade wheel 9, the filler opening 1 of fuel pump is located on the housing 7 side near blade wheel 9, and oil outlet 6 is located on the housing 7 away from a side of blade wheel 9, leaves the oil circuit 4 that the confession fuel oil flows through between motor 8 and housing 7 inwalls.
Described blade wheel 9 integral body are one-body molded by high molecule plastic.
Be provided with 25-30 blade 91 on the described blade wheel 9, blade 91 is circumference array and distributes as the center of circle take blade wheel 9 centers, and described filler opening 1 position is corresponding with the position of blade 91.Owing to use densely arranged blade 91, can guarantee the stable of oil pressure and guarantee larger suction.
The periphery of the circumference array that described each blade consists of is about 2mm apart from the distance at blade wheel edge, guarantees the mechanical strength in blade 91 outsides.
Described filler opening 1 bore so also is in order to guarantee the stable of oil outlet 6 oil pressure greater than the bore of oil outlet 6.
Side away from blade wheel 9 in the described housing 7 is provided with conductor interface 5, wire between the electrode of conductor interface and motor 8 uses sealing material to seal, be bonded as one with housing 7 inwalls, separate with oil circuit 4, thereby guaranteed the working life of fuel pump integral body.
Claims (4)
1. external fuel pump of motorcycle, include housing and be arranged on the housing interior pump housing and motor, it is characterized in that: be provided with blade wheel in the described pump housing, the rotating shaft of described motor stretches in the pump housing and is connected with blade wheel, the filler opening of fuel pump is located at a side of close blade wheel on the housing, oil outlet is located on the housing away from a side of blade wheel, leaves the oil circuit that flows through for fuel oil between motor and the inner walls.
2. the external fuel pump of a kind of motorcycle according to claim 1 is characterized in that: be provided with 25-30 blade on the described blade wheel, blade is circumference array and distributes take the blade wheel center as the center of circle, and described filler opening position is corresponding with the position of blade.
3. the external fuel pump of a kind of motorcycle according to claim 2 is characterized in that: the periphery of the circumference array that described each blade consists of is 1.0-3.0mm apart from the distance at blade wheel edge.
4. the external fuel pump of a kind of motorcycle according to claim 1, it is characterized in that: described filler opening bore is greater than the bore of oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652471 CN202914326U (en) | 2012-12-03 | 2012-12-03 | Outlaid fuel pump for motor bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652471 CN202914326U (en) | 2012-12-03 | 2012-12-03 | Outlaid fuel pump for motor bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914326U true CN202914326U (en) | 2013-05-01 |
Family
ID=48162645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652471 Expired - Lifetime CN202914326U (en) | 2012-12-03 | 2012-12-03 | Outlaid fuel pump for motor bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914326U (en) |
-
2012
- 2012-12-03 CN CN 201220652471 patent/CN202914326U/en not_active Expired - Lifetime
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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: 20130501 |