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. 12, 1995
Filed:
Feb. 25, 1994
Kurt Oberklammer, Neuhofen/Ybbs, AT;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection pump of the distributor type for a multicylinder internal combustion engine has a pump piston that both rotates and is driven in the lifting direction for generating a fuel injection pressure in a pump work chamber, and a magnet valve that blocks and unblocks the pump work chamber in the direction of a relief conduit for designating the beginning and end of pumping. The rotational movement of the pump piston is generated by a drive shaft and its lifting motion is generated by a cam drive. For use of the fuel injection pump in an engine having more than four cylinders, the cam drive has a first cam disk connected to the pump piston in a manner fixed against relative rotation with front cams, and a second cam disk connected to the drive shaft in a manner fixed against relative rotation with front cams. An unrotatable but axially displaceable roller holder supports rollers that roll off respectively one of the cam disks.