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:
Aug. 18, 1992
Filed:
Oct. 28, 1991
Applicant:
Inventor:
Derek W Tomsett, East Sussex, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123502 ; 12317917 ; 123450 ;
Abstract
A rotary distributor type fuel pump has an annular cam ring which is movable by a fluid pressure actuated piston to control the timing of fuel delivery. The cylinder containing the piston has an enlarged portion in which is slidable a sleeve located about the piston. The sleeve is engagable with the piston and one end is exposed to a fluid pressure applied to the piston to assist the movement of the piston when a valve is set such that an annular space is part defined by the other end of the sleeve, is connected to a drain.