| 摘要 |
PROBLEM TO BE SOLVED: To provide a reliable fuel seal.SOLUTION: To solve the problem, a high-pressure fuel supply pump according to the present invention is configured so that a fuel seal of an electromagnetic inlet valve has an O-ring structure, a contact surface between a pump housing and the electromagnetic inlet valve is provided on an atmospheric side of an O-ring attachment groove, and the contact surface does not exhibit airtightness. With this configuration, the sealability of an O-ring can be confirmed by confirming the airtightness after pump assembly, so that it is possible to prevent defective seals from spreading commercially. |
