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. 29, 1980
Filed:
May. 30, 1978
Alfred Urlaub, Nuremberg, DE;
Eckart Muller, Schwabach, DE;
Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft, Nuremberg, DE;
Abstract
A fuel injector for internal combustion engines having an axially slidable nozzle needle capable of being lifted off its sealing seat by pressure of fuel against at least one spring and having a control pintle below the sealing seat sliding in a blind-hole recess is provided with the improvement comprising a cavity starting immediately below the sealing seat and formed as an eccentric widening extending parallel to the blind-hole type recess, said spray holes opening into said blind-hole type recess and the cross sectional areas of the nozzle seat gap and the cavity at each position of the needle nozzle are greater than the cross sectional area of the at least one spray hole uncovered at any time by the movement of the control pintle.