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:
Aug. 04, 1992
Filed:
May. 03, 1990
Applicant:
Inventors:
Gerhard Finsterwalder, Bergisch Gladbach, DE;
Reda Rizk, Cologne, DE;
Hans G Michels, Erftstadt, DE;
Assignee:
Kloeckner-Humboldt-Deutz AG, Cologne, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; F02M / ;
U.S. Cl.
CPC ...
417495 ; 417494 ; 417499 ; 123449 ;
Abstract
A fuel injector for diesel engines, having at least one pump plunger (1), which is sealingly guided in a plunger bushing (2) and, together with said bushing, defines a high-pressure space (5). The pump plunger (1) has an internal suction valve (6) which creates a fuel injection pump having a small dead volume in the high-pressure region and low construction cost. The suction valve (6) may be provided with a cone-shaped compression spring (7) disposed in the high-pressure region (5) or with a stroke limiting stop (28, 28a).