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:
Sep. 12, 2000
Filed:
Sep. 19, 1997
Stanislaw Bodzak, Elsbethen, AT;
Hanspeter Mayer, Adnet, AT;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A feed pump having a pair of gears that mesh with each other and are driven to rotate in a pump chamber. The gears supply a feed medium from an intake chamber connected to a storage tank, along a supply conduit constituted between the end face of the gears and the circumferential wall of the pump chamber. The feed medium is pumped into a pressure chamber, and a bypass conduit that connects the intake chamber to the pressure chamber can be opened by means of a pressure valve disposed in the bypass conduit. The bypass conduit that contains the pressure valve is disposed in a housing cover that closes the housing of the feed pump. The housing cover can be rotated 180 degrees in order to reverse the flow of the fluid medium within the pump.