Patent ID: 6116859
Filing Date: 2000-09-12
Classification: F04C

Abstract:
A feed pump comprising a housing, a pair of gears (5, 9) that mesh with each other and are driven to rotate in a pump chamber (3) in said housing, said pair of gears supply a feed medium from an intake chamber (11) along a supply conduit (15) of said feed pump constituted between an end face of the gears (5, 9) and a circumferential wall of the pump chamber (3) into a pressure chamber (13), a bypass conduit (41) that connects the intake chamber (11) to the pressure chamber (13) is opened by means of a pressure valve (53) disposed in said bypass conduit, the bypass conduit (41) that contains the pressure valve (53) is disposed in a housing cover (21) that closes the housing (1) of the feed pump and an inlet opening (17) that feeds into the intake chamber (11) and a pressure opening (19) that feeds into the pressure chamber (13) are disposed in the housing cover (21).