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:
Apr. 26, 1977
Filed:
Mar. 04, 1976
Applicant:
Inventor:
Paul Lakra, Wembley, EN;
Assignee:
C.A.V. Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract
A fuel injection system includes a piston movable within a bore to displace fuel through a fuel outlet. Fluid under pressure can be admitted to the other end of the bore by way of a valve means to effect movement of the piston to displace fuel and when the valve means is closed a further valve means can be opened to permit the piston to move in the opposite direction. The valve means and the further valve means are actuated by a control pressure generated by a stack of piezo-electric crystals. The valve means 23 includes a plurality of pressure balanced pistons and when the stack of crystals is de-energised the valve means is in the closed position.