CN218376684U - Fuel pump of carburetor - Google Patents
Fuel pump of carburetor Download PDFInfo
- Publication number
- CN218376684U CN218376684U CN202221155784.1U CN202221155784U CN218376684U CN 218376684 U CN218376684 U CN 218376684U CN 202221155784 U CN202221155784 U CN 202221155784U CN 218376684 U CN218376684 U CN 218376684U
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- China
- Prior art keywords
- fuel pump
- way
- oil
- baffle
- carburetor
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Abstract
The utility model relates to a carburetor fuel pump technical field especially relates to a carburetor fuel pump, including the fuel pump casing, the inside of fuel pump casing is equipped with two sets of fluid opposite direction's one-way oil sweetgum fruit way, one-way oil sweetgum fruit way is separated for the oil feed chamber and is gone out the oil pocket through the baffle, the terminal surface that the baffle is close to the oil feed chamber is interior concave surface, the terminal surface that the baffle is close to an oil pocket is the evagination surface, the outside convex surface of baffle from interior concave surface is equipped with one-way oilhole. The utility model provides a partial loss of energy takes place when carburetor fuel pump can effectively reduce the oil feed, avoids the one-way baffle to strike the condition of ageing with higher speed under the fluid, has improved the working property of fuel pump, has prolonged the life of part.
Description
Technical Field
The utility model relates to a carburetor fuel pump technical field especially relates to a carburetor fuel pump.
Background
The fuel pump includes structures such as plunger, diaphragm, pump body and pump cover, refer to application number 200820160412.1, the name is the chinese utility model patent of engine rubber valve fuel pump. The two side end faces of the partition plate between the oil inlet cavity and the oil outlet cavity of the fuel pump are both planes, and the planar design has the advantages of convenience in processing and low cost, but part of energy loss exists when oil is impacted, and the aging of the one-way oil passing structure can be accelerated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the present invention provides a fuel pump of a carburetor for reducing the energy loss generated by the impact of oil.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a carburetor fuel pump, includes the fuel pump casing, the inside of fuel pump casing is equipped with two sets of fluid flow direction opposite's one-way oil way passageway, one-way oil way passageway is separated for oil feed chamber and oil outlet chamber through the baffle, the baffle is close to the terminal surface in oil feed chamber and is interior concave surface, the baffle is close to the terminal surface in oil outlet chamber and is the evagination surface, the baffle is equipped with one-way oilhole from the outside convex surface of interior concave surface.
Further, a cavity is arranged inside the fuel pump shell, and the two mutually independent one-way oil passages are formed by the cavity through an arc-shaped plate in a separating mode.
Furthermore, the side wall of the arc-shaped plate close to the oil inlet cavity is concave, and the side wall of the arc-shaped plate close to the oil outlet cavity is convex.
Furthermore, a vacuum membrane is arranged on one side, close to the oil outlet cavity, of the one-way oil hole.
Further, the end face, abutted against the outer convex face, of the vacuum membrane is a spherical face.
The beneficial effects of the utility model reside in that: the utility model provides a carburetor fuel pump, the one side design that is close to the oil feed chamber with the baffle is interior concave surface, and the one side design that is close to out the oil pocket is outer convex surface, takes place energy partial loss when can effectively reduce the oil feed like this, avoids one-way baffle to strike the condition of ageing with higher speed under the fluid, has improved the working property of fuel pump, has prolonged the life of part.
Drawings
Fig. 1 is a schematic structural view of a carburetor fuel pump according to an embodiment of the present invention;
FIG. 2 is another schematic view of a carburetor fuel pump according to an embodiment of the present invention;
description of reference numerals:
1. a fuel pump housing; 2. A one-way oil passage; 21. An oil inlet cavity; 22. An oil outlet cavity; 3. A partition plate; 31. An inner concave surface; 32. An outer convex surface; 33. A one-way oil hole; 4. An arc-shaped plate.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model provides a carburetor fuel pump is used in the one-way oil structure of leading of fuel pump.
Please refer to fig. 1 and fig. 2, the utility model discloses a carburetor fuel pump, including fuel pump housing 1, fuel pump housing 1's inside is equipped with two sets of fluid flow direction opposite one-way oil way passageway 2, one-way oil way passageway 2 separates for oil feed chamber 21 and oil outlet chamber 22 through baffle 3, the terminal surface that baffle 3 is close to oil feed chamber 21 is interior concave surface 31, the terminal surface that baffle 3 is close to oil outlet chamber 22 is outer convex surface 32, baffle 3 is equipped with one-way oilhole 33 from interior concave surface 31 to outer convex surface 32.
From the above description, the beneficial effects of the utility model reside in that: the one side of the partition plate 3 close to the oil inlet cavity 21 is designed into the inner concave surface 31, and the one side of the partition plate 3 close to the oil outlet cavity 22 is designed into the outer convex surface 32, so that energy partial loss during oil inlet can be effectively reduced, the accelerated aging of the one-way partition plate 3 under oil impact is avoided, the working performance of the fuel pump is improved, and the service life of parts is prolonged.
In an alternative embodiment, a cavity is arranged inside the fuel pump shell 1, and two mutually independent one-way oil passages 2 are formed by the cavity through an arc-shaped plate 4 in a separating way.
In an alternative embodiment, the side wall of the arc plate 4 close to the oil inlet chamber 21 is concave, and the side wall of the arc plate 4 close to the oil outlet chamber 22 is convex.
From the above description, it can be known that the arc-shaped plate 4 is used to separate two sets of one-way oil paths, one side close to the oil inlet cavity 21 is designed to be concave, and one side close to the oil outlet cavity 22 is designed to be convex, so that the oil inlet amount can be increased, and the oil inlet energy loss can be reduced.
In an alternative embodiment, a vacuum diaphragm is disposed at a side of the one-way oil hole 33 close to the oil outlet chamber 22.
In an alternative embodiment, the end surface of the vacuum diaphragm abutting on the convex outer surface 32 is spherical.
From the above description, the vacuum diaphragm adopts a spherical design, so as to avoid separating from the partition plate 3 under the impact of oil, ensure the one-way sealing performance of the vacuum diaphragm and prolong the service life of the component.
The utility model discloses a theory of operation is: the fuel pump shell 1, the baffle plate 3 and the arc-shaped plate 4 can be integrally formed, and then the vacuum membrane is arranged on one side of the oil outlet cavity 22 to be sealed in a one-way free manner.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the utility model provides a carburetor fuel pump, includes fuel pump housing 1, fuel pump housing 1's inside is equipped with two sets of fluid one-way oil way passageway 2 that flow direction is opposite, one-way oil way passageway 2 separates for oil feed chamber 21 and play oil chamber 22 through baffle 3, the terminal surface that baffle 3 is close to oil feed chamber 21 is interior concave surface 31, the terminal surface that baffle 3 is close to a oil chamber 22 is outer convex surface 32, baffle 3 is equipped with one-way oilhole 33 from inside concave surface 31 to outside convex surface 32.
The fuel pump shell 1 is internally provided with a cavity, and the two mutually independent one-way oil passages 2 are formed by separating the cavity through an arc-shaped plate 4. The side wall of the arc-shaped plate 4 close to the oil inlet cavity 21 is concave, and the side wall of the arc-shaped plate 4 close to the oil outlet cavity 22 is convex. And a vacuum membrane is arranged on one side of the one-way oil hole 33 close to the oil outlet cavity 22. The end face of the vacuum diaphragm abutting against the outer convex surface 32 is a spherical surface.
To sum up, the utility model provides a carburetor fuel pump designs the one side that the baffle is close to the oil feed chamber for interior concave surface, and the one side design that is close to out the oil pocket is outer convex surface, takes place energy partial loss when can effectively reducing the oil feed like this, avoids one-way baffle to strike the condition of ageing with higher speed under the fluid, has improved the working property of fuel pump, has prolonged the life of part.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. The utility model provides a carburetor fuel pump, includes the fuel pump casing, the inside of fuel pump casing is equipped with two sets of fluid one-way oil way passageways that flow direction is opposite, its characterized in that, one-way oil way passageway separates for oil feed chamber and oil outlet chamber through the baffle, the baffle is close to the terminal surface of oil feed chamber and is interior concave surface, the baffle is close to the terminal surface of oil outlet chamber and is the evagination surface, the baffle is equipped with one-way oilhole from the outside convex surface of interior concave surface.
2. The carburetor fuel pump of claim 1, wherein a chamber is provided in the fuel pump housing, and two independent one-way fuel passages are defined by the chamber and separated by an arcuate plate.
3. The carburetor fuel pump of claim 2, wherein the side wall of the arcuate plate adjacent the inlet chamber is concave and the side wall of the arcuate plate adjacent the outlet chamber is convex.
4. The carburetor fuel pump of claim 1, wherein a vacuum diaphragm is disposed on a side of the one-way oil hole adjacent to the oil outlet chamber.
5. The carburetor fuel pump of claim 4, wherein the end surface of the vacuum diaphragm abutting the outer convex surface is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221155784.1U CN218376684U (en) | 2022-05-13 | 2022-05-13 | Fuel pump of carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221155784.1U CN218376684U (en) | 2022-05-13 | 2022-05-13 | Fuel pump of carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218376684U true CN218376684U (en) | 2023-01-24 |
Family
ID=84950191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221155784.1U Active CN218376684U (en) | 2022-05-13 | 2022-05-13 | Fuel pump of carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218376684U (en) |
-
2022
- 2022-05-13 CN CN202221155784.1U patent/CN218376684U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |