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. 12, 1985
Filed:
Jun. 29, 1984
David J Gaskell, Sudbury, GB;
Lucas Industries public limited company, Birmingham, GB;
Abstract
A fuel injection nozzle of the inwardly opening type has a valve member which is slidable within a bore to control fuel flow through an outlet. Fuel under pressure from an inlet is supplied to an enlargement to act upon the valve member to lift the valve member against spring pressure and the fuel can flow to the enlargement by way of two flow paths the first of which includes a groove on the valve member and a first port in the wall of the bore. The port is positioned so that increasing restriction to the flow of fuel to the outlet occurs as the valve member lifts. The second flow path includes the groove and a second port which opens to the groove after a predetermined movement of the valve member. The initial movement of the valve member under the action of increasing fuel pressure at the inlet is thus controlled.