CN214887427U - High-pressure common rail fuel injection pump body easy to demould - Google Patents
High-pressure common rail fuel injection pump body easy to demould Download PDFInfo
- Publication number
- CN214887427U CN214887427U CN202120377807.2U CN202120377807U CN214887427U CN 214887427 U CN214887427 U CN 214887427U CN 202120377807 U CN202120377807 U CN 202120377807U CN 214887427 U CN214887427 U CN 214887427U
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- pump body
- injection pump
- common rail
- fuel injection
- rail fuel
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Abstract
The utility model relates to a high pressure common rail fuel injection pump body of easy demoulding, it includes the jet pump body the edge of the jet pump body is equipped with the pattern drawing inclined plane, contained angle between pattern drawing inclined plane and the pattern drawing direction is greater than 5, is less than 15 degrees. The utility model discloses a high pressure common rail fuel injection pump body structure of easy drawing of patterns improves the quality of part demolding through increasing the drawing die inclined plane for production efficiency has avoided the condition of liquid leakage in the part use.
Description
Technical Field
The utility model belongs to the casting field especially relates to a high pressure common rail fuel injection pump body of easy demoulding.
Background
The diesel engine high-pressure common rail fuel injection pump is mainly used for matching a diesel engine and is installed on a power assembly of a bus, a truck and the like taking diesel as fuel. The high pressure common rail fuel injection pump of the diesel engine is composed of a pump body component, a fuel delivery pump, a Pressure Control Valve (PCV) and other large components. The part is a pump body of a high-pressure common-rail fuel injection pump of the diesel engine, and the required pressure fuel is ensured to be output by installing each functional part on the part. The functional parts are as follows: the cam shaft rotates to drive the plunger piston to reciprocate up and down in the plunger piston sleeve, the required fuel quantity is controlled through the pressure control valve PCV, and the fuel is injected into the common rail at a certain fuel pressure.
The cast parts can generate part air holes when being demoulded, which affects the strength of the parts and the air tightness of the part assembly and causes liquid leakage in use. In addition, when the part is demoulded, metal materials are easily adhered to the surface of the mould, the surface quality of the part is affected, the metal materials are removed in time, and the working strength is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it causes the defect of liquid leakage in the use to produce the bubble easily when overcoming among the prior art drawing of patterns, provides the high pressure common rail fuel injection pump body of easy demoulding.
The utility model discloses a following technical scheme solves above-mentioned technical problem:
the high-pressure common rail fuel injection pump body easy to demould is characterized by comprising an injection pump body, wherein a drawing inclined plane is arranged at the edge of the injection pump body, and an included angle between the drawing inclined plane and the drawing direction is larger than 5 degrees and smaller than 15 degrees.
Preferably, an included angle between the die drawing inclined plane and the die drawing direction is 10 degrees.
The utility model has the advantages that: the utility model discloses a high pressure common rail fuel injection pump body structure of easy drawing of patterns improves the part quality through increasing the drawing die inclined plane for production efficiency has avoided the condition of liquid leakage in the use.
Drawings
Fig. 1 is a schematic structural diagram of a high-pressure common rail fuel injection pump body easy to demold according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described with reference to the following preferred embodiments and the accompanying drawings.
As shown in fig. 1, the high-pressure common rail fuel injection pump body easy to demold in the present embodiment includes an injection pump body 1, a die drawing inclined plane 11 is disposed at an outer contour of the injection pump body 1 contacting a die, and an included angle α between the die drawing inclined plane 11 and a die demolding direction is 10 degrees. Of course, in other embodiments the included angle may be adjusted within a range greater than 5 degrees and less than 15 degrees.
When the part is formed and condensed, the part is often shrunk, so that the part can be tightly sheathed on a mold cavity or a sand core and is difficult to separate. In order to facilitate the removal of the part from the mold, the part is designed with a draft angle, i.e., a draft slope, on the surface of the part parallel to the demolding direction. If the die drawing inclined plane is not arranged, or the improper arrangement often causes the increase of the die drawing resistance, scratches the surface of a finished piece, and the finished piece is deformed during the die drawing, so that the air holes and the surface are bad, and the quality of the finished piece is influenced.
The quality of a product after the cast part is demoulded is improved through the drawing inclined plane, the demoulding is easier, the generation of metal adhered to the surface of the mould is reduced, and the production efficiency is improved.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (2)
1. The high-pressure common rail fuel injection pump body easy to demould is characterized by comprising an injection pump body, wherein a pattern drawing inclined plane is arranged at the edge of the injection pump body, and the included angle between the pattern drawing inclined plane and the pattern drawing direction of the injection pump body is larger than 5 degrees and smaller than 15 degrees.
2. The easy-to-demold high pressure common rail fuel injection pump body of claim 1, wherein the angle between the draft bevel and the draft direction is 10 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377807.2U CN214887427U (en) | 2021-02-18 | 2021-02-18 | High-pressure common rail fuel injection pump body easy to demould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377807.2U CN214887427U (en) | 2021-02-18 | 2021-02-18 | High-pressure common rail fuel injection pump body easy to demould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887427U true CN214887427U (en) | 2021-11-26 |
Family
ID=78858597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120377807.2U Active CN214887427U (en) | 2021-02-18 | 2021-02-18 | High-pressure common rail fuel injection pump body easy to demould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887427U (en) |
-
2021
- 2021-02-18 CN CN202120377807.2U patent/CN214887427U/en active Active
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