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:
Jul. 27, 1993
Filed:
Sep. 21, 1992
Ryokiti Yoshino, Higashimatsuyama, JP;
Hiroaki Nozaki, Higashimatsuyama, JP;
Ken Unoki, Higashimatsuyama, JP;
Zexel Corporation, Tokyo, JP;
Abstract
A fuel injection pump for injecting compressed fuel to an engine through a reciprocative motion of a plunger includes a vertically-elongated plunger barrel, and a plunger having a shaft portion which is vertically and reciprocatively slidable along the inner space of the plunger barrel, at least one of the inner wall of the plunger barrel and the peripheral surface of the shaft portion of the plunger being formed with an oil groove for temporarily storing oil which ascends from a cam chamber through a reciprocative motion of the plunger, wherein the oil groove has at least two side walls one at the upper side of the oil groove and one at the lower side of the oil groove, and wherein lower side wall is downwardly slanted to return the stored oil to the cam chamber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile