Shell structure of high-pressure fuel injection pump
By designing heat conduction grooves, heat dissipation holes and installing heat dissipation fans on the shell of the high-pressure fuel injection pump, the problem of heat deformation and low heat dissipation efficiency of the shell during high-speed movement is solved, and the rapid cooling and improvement of the shell is achieved. .
Patent Information
- Application Number
- CN202420647602.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The high-pressure fuel injection pump housing is prone to heat deformation during the movement of the high-speed piston, and has low heat dissipation efficiency.
A high-pressure fuel injection pump housing structure is designed, including an outer shell, a base and an end cover. The heat conduction grooves are processed on both sides of the outer shell. The outer shell protrudes from both sides of the base and the air conduction groove are processed inside. A heat dissipation hole is provided above the air conduction groove. , install a cooling fan to blow the air through the heat dissipation hole and the heat conduction groove to achieve rapid heat dissipation.
Through the design of the heat conduction groove and heat dissipation hole, combined with the blowing effect of the heat dissipation fan, the heat dissipation efficiency of the high-pressure fuel injection pump housing is significantly improved and the temperature of the housing is reduced.
Smart Images
Figure CN222526428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fuel injection pumps, in particular to a housing structure of a high-pressure fuel injection pump. Background Art
[0002] A plunger is installed inside the fuel injection pump. The plunger moves like a piston under the push of the camshaft and the tappet to inject fuel. The plunger inside the high-pressure fuel injection pump moves like a high-speed piston. The housing of the fuel injection pump is easily deformed by heat. Although the housing of the high-pressure fuel injection pump is currently made of aluminum alloy with better heat dissipation, the heat generated during the movement of the plunger is still easily concentrated on the surface of the housing, resulting in slow heat dissipation and the heat dissipation efficiency needs to be improved. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a high-pressure fuel injection pump housing structure in view of the deficiencies of the above-mentioned prior art.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] A high-pressure fuel injection pump housing structure comprises an outer shell, a base is arranged at the bottom of the outer shell, the base and the outer shell are cast as one piece, end covers are installed on the sides of the outer shell and the base, a plurality of heat conduction grooves are processed on both sides of the outer shell, the base protrudes from the outer shell on both sides, air guide grooves are processed in the part of the base protruding from the outer shell, heat dissipation holes are processed above the air guide grooves, the heat dissipation holes face the heat conduction grooves, a partition plate is connected to the lower part of the end cover, the partition plate separates the lower part of the end cover into an installation groove, a cooling fan is installed in the installation groove, and the cooling fan blows air into the air guide groove.
[0006] Furthermore, a rib plate is connected in the installation groove, and the upper and lower ends of the heat dissipation fan are fixed to the rib plate by screws.
[0007] Furthermore, air inlet holes are evenly distributed on the side of the installation slot on the end cover.
[0008] Furthermore, a sealing gasket is provided between the end cover, the outer shell and the base.
[0009] Compared with the prior art, the utility model provides a high-pressure fuel injection pump housing structure, in which a heat conduction groove is processed on the housing surface, and a heat dissipation hole is arranged on the base at the bottom of the housing. When the high-pressure fuel injection pump is working, the heat dissipation hole blows air toward the heat conduction groove to achieve the purpose of rapid heat dissipation, thereby cooling the high-pressure fuel injection pump housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model;
[0011] Figure 2 It is a top view of the utility model;
[0012] Among them, 1. outer shell, 2. base, 3. end cover, 4. sealing gasket, 5. heat conduction groove, 6. air guide groove, 7. heat dissipation hole, 8. partition board, 9. cooling fan, 10. rib plate, 11. air inlet hole. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the present utility model will be described clearly and completely below.
[0014] like Figure 1 and Figure 2 As shown, a high-pressure fuel injection pump housing structure comprises an outer shell 1, in which a camshaft, a tappet and a plunger are installed, a base 2 is connected to the bottom of the outer shell 1, and the base 2 is integrally cast with the outer shell 1, and an end cover 3 is installed on the side of the outer shell 1 and the base 2, and a flange surface is arranged around the end cover 3, and the flange surface is fixed by screws, and the end cover 3 covers an extended end of the camshaft, and a sealing gasket 4 is arranged between the end cover 3 and the outer shell 1 and the base 2, and the sealing gasket 4 is used to prevent the leakage of lubricating oil at the camshaft.
[0015] A plurality of heat conduction grooves 5 are processed on both sides of the outer shell 1, and the heat conduction grooves 5 are integrally formed with the outer shell 1 during casting. The base 2 protrudes from the outer shell 1 on both sides, and air guide grooves 6 are processed in the part of the base 2 protruding from the outer shell 1. Heat dissipation holes 7 are processed above the air guide grooves 6, and the heat dissipation holes 7 face the heat conduction grooves 5. A partition plate 8 is connected to the lower part of the end cover 3, and the partition plate 8 separates the lower part of the end cover 3 into an installation groove, and a cooling fan 9 is installed in the installation groove, wherein a rib plate 10 is connected to the installation groove, and the upper and lower ends of the cooling fan 9 are fixed to the rib plate 10 by screws.
[0016] In this embodiment, two cooling fans are installed on the rib plate 10 , and the two cooling fans face the corresponding air guide slots 6 respectively.
[0017] The side of the installation slot is evenly distributed with air inlet holes 11 on the end cover 3, and the air inlet holes 11 take in air when the cooling fan 9 is turned on.
[0018] When the high-pressure fuel injection pump is working, the cooling fan 9 blows air into the air guide groove 6, and the blown air is discharged along the heat dissipation holes 7 and blows into the heat conduction groove 5, so that the surface of the high-pressure fuel injection pump housing is quickly cooled, thereby improving the heat dissipation efficiency.
[0019] The present invention is not limited to the described embodiments. Those skilled in the art may make some modifications or changes without departing from the spirit and scope of the present invention, that is, within the scope of disclosure. Therefore, the scope of protection of the present invention shall be subject to the scope defined in the claims.
Claims
1. A high-pressure fuel injection pump housing structure, comprising an outer shell, a base is provided at the bottom of the outer shell, the base and the outer shell are integrally cast, and end covers are installed on the sides of the outer shell and the base, characterized in that: Several heat conduction grooves are processed on both sides of the outer shell, and the base protrudes out of the outer shell on both sides. Air guide grooves are processed in the part of the base protruding from the outer shell, and heat dissipation holes are processed above the air guide grooves. The heat dissipation holes face the heat conduction grooves. A partition plate is connected to the lower part of the end cover, and the partition plate separates the lower part of the end cover into an installation groove. A cooling fan is installed in the installation groove, and the cooling fan blows air into the air guide groove.
2. A high-pressure fuel injection pump housing structure according to claim 1, characterized in that: A rib plate is connected in the installation groove, and the upper and lower ends of the heat dissipation fan are fixed on the rib plate by screws.
3. The high-pressure fuel injection pump housing structure according to claim 1, characterized in that: The side of the installation slot is evenly provided with air inlet holes on the end cover.
4. The high-pressure fuel injection pump housing structure according to claim 1, characterized in that: A sealing gasket is arranged between the end cover, the outer shell and the base.