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. 12, 1988
Filed:
Feb. 05, 1987
Karl Konrath, Freiberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection pump for internal combustion engines, of the distributor type, having a reciprocating and simultaneously rotating pump piston as well as a governor slide adjustable relative thereto as a function of load, the injection quantity at any time being dimensioned on the basis of the position of the governor slide. For controlling an exhaust gas recirculation valve as a function of the load range or the particular injection quantity, the injection pump has a pressure switch for controlling an electrical signal in the partial-load range. The pressure switch can be made to communicate with the pressure-carrying suction chamber via a line in the housing and a conduit in the pump piston, the inlet of which conduit is controlled by the governor slide such that it is opened only whenever the outlet of a relief conduit is closed by the governor slide.