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:
Jun. 06, 1989
Filed:
Mar. 17, 1988
David J Gaskell, Sudbury, GB;
Lucas Industries Public Limited Company, Birmingham, GB;
Abstract
A fuel injection nozzle of the inwardly opening type includes a valve member which is biased into contact with a seating by a spring. The valve member is surrounded in part by a sleeve and both the valve member and sleeve are subject to fuel pressure so that axial forces are produced which act in opposition to the spring. When the forces are large enough the valve member and sleeve move but the sleeve movement and hence the movement of the valve member, is limited by a stop. Fuel is allowed to flow through an outlet at a restricted rate and only when the fuel pressure rises is the valve member moved further to allow unrestricted flow of fuel. The further movement of the valve member is limited by the engagement of an abutment on the valve member with the end of the sleeve.