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:
Jan. 27, 1976
Filed:
Oct. 04, 1974
Applicant:
Inventors:
Peter Romann, Stuttgart, DT;
Erwin Nagele, Hessigheim, DT;
Assignee:
Robert Bosch G.m.b.H., Gerlingen-Schillerhohe, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ; 1231 / ;
Abstract
To reliably permit closing of a switch controlling operation of a fuel supply pump which provides pressurized fuel to a fuel injection system, even under low air flow conditions in the induction pipe of an internal combustion engine, an auxiliary spring is arranged to counteract the force of a reset spring against which a deflection flap or disk in the induction pipe of the engine is deflectable. The auxiliary spring is active only over a limited range of deflection, from rest position, and immediately adjacent thereto, so that the fuel pump will not be dis-connected under low air flow conditions.