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US 11,441,558 B2Granted
Guide for piston of high-pressure pump for vehicle
AssigneeHyundai Kefico Corporation
InventorsKyung Chul Han, Hyeong Kyun Park, Jin Sung Kim, Chun Ky Hong
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Abstract
A guide for a piston of a high-pressure pump includes: an upper body and a lower body, a connection part integrally connecting the upper body and the lower body, and a seal molded by an insert injection between the upper body and the lower body while surrounding the connection part. A gap exists between the upper body and the lower body, and the piston and the seal are in close contact with a piston. Therefore, it is possible to prevent leakage of fuel even while securing motion performance of the piston.
Claims8
A guide for a piston of a high-pressure pump, the guide comprising:
- an upper body and a lower body having a cylindrical shape;
- a plurality of connection parts integrally formed on the upper body and the lower body to connect the upper body to the lower body;
- and
- a seal provided in a space between the upper body and the lower body in a structure of surrounding the connection part,
- wherein the seal is formed with connection part holes of a same number as a number of the connection parts, and
- wherein each of the connection part holes vertically penetrates the seal, and
- wherein each of the connection parts is inserted into one of the connection part holes, and
- wherein the seal is molded by an insert injection in a space between the upper body and the lower body.
5 more elements
Dependencies are inferred from the claim text.