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:
Nov. 06, 1984
Filed:
Oct. 26, 1983
Applicant:
Inventor:
Gerald S Thomas, Gloucester, GB;
Assignee:
Lucas Industries Public Limited Company, Birmingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123514 ; 123 4131 ; 123 4133 ; 123503 ; 417228 ;
Abstract
A liquid fuel injection pump includes a reciprocable pumping plunger located in a bore formed in a pump barrel. The barrel is located in a pump body. The bore has first groove for collecting fuel leaking from the pumping chamber defined by the plunger and bore, a second groove through which lubricating oil can be delivered to the working clearance between the plunger and the bore. In order to prevent fuel contaminating the lubricating oil a third groove is provided between the first and second grooves. The third groove is connected to an outlet through which contaminated lubricating oil can flow to a drain.