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:
Dec. 05, 1989
Filed:
Dec. 07, 1988
Karl Konrath, Freiberg, DE;
Claus Koester, Ditzingen, DE;
Karl Zibold, Asperg, DE;
Manfred Schwarz, Gerlingen, DE;
Karl-Friedrich Russeler, Ditzingen, DE;
Klaus Krieger, Affalterbach, DE;
Roland Kupzik, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a fuel injection pump for internal combustion engines for motor vehicles, a damping device is provided to eliminate so-called vehicle bucking. The device allows rapid adjusting movements of an rpm adjusting lever, which is connected to the driving lever, to affect the supply quantity setting of the fuel injection pump only with a delay. To this end, the damping device has a damping chamber defined by a damping cylinder and a damping piston displaceable therein. The damping chamber communicates with the pump interior via two parallel throttles and via counter-parallel check valves located in series with the parallel throttles. The damping piston is connected to a damper lever on which the rpm adjusting lever is supported via a pre-stressed drag spring. The damper lever is connected via a governor spring to a governor lever, which actuates a quantity adjusting device to determine the fuel metering, so that an adjusting motion of the rpm adjusting lever acts upon the quantity adjusting device only in a delayed manner.