The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2004
Filed:
Nov. 04, 2002
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A high pressure fuel supply apparatus has a plunger reciprocating and sliding in a sleeve of a high pressure fuel pump to form a fuel pressurizing chamber between the plunger and the sleeve to discharge pressurized fuel; a bolt forming a part of a housing of the high pressure fuel pump ; and an oil seal fixed to an inner wall surface of the bolt by press fitting to slide on an outer circumferential wall of the plunger in accordance with reciprocating motion of the plunger to seal the fuel and lubricating oil; wherein the bolt is formed so that a press-in load in a second half of a press-in stroke of the seal is higher than that in a first half thereof in an abutment portion of the bolt against the seal