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.

Date of Patent:
Jul. 10, 1984

Filed:

Mar. 08, 1983
Applicant:
Inventors:

Hiroshi Isobe, Higashimatsuyama, JP;

Yuji Shimamune, Higashimatsuyama, JP;

Kouji Yamanoi, Higashimatsuyama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
1231 / ; 123495 ;
Abstract

A connecting member, preferably in the form of a bolt, is mounted in a wall portion of the pump housing of a fuel injection pump, which defines therein a chamber in which component parts to be lubricated are accommodated, or a space communicating therewith, and which connects the tail end of a lubricating oil feeding pipe to the pump housing. The connecting member has a cylinder bore within which a piston is received with a predetermined small clearance between the cylinder bore and the piston and which communicates with the above chamber or space. The piston is moved in response to a change in the relationship between the pressure of lubricating oil acting upon the piston and the urging force of a spring urging the piston against the oil pressure, to prevent clogging of the above clearance with sludge or the like present in the lubricating oil.


Find Patent Forward Citations

Isobe, Hiroshi. (1984). Lubricating oil feeding device for fuel injection pumps (U.S. Patent No. 4458643). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4458643

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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