Patent ID: 6017183
Filing Date: 2000-01-25
Classification: F04D

Abstract:
A flow pump, particularly for the conveying of fuel from a fuel tank of a motor vehicle, with a pump chamber (11) embodied in a pump housing (10) which is bordered by two radially extending lateral walls (20, 21), spaced apart from each other, and a peripheral wall (14), connecting the lateral walls (20, 21) along their periphery with each other, with at least one groove-like lateral channel (20, 21) disposed in one of the lateral walls (12,13), open toward the pump chamber (11), which extends, related to the flow direction in the lateral channel (20, 21), concentrically in relation to the pump axis (22), with an interrupting strip (35, 23), remaining between a lateral channel end (202, 212) and a lateral channel start (201, 211), and having a rotating impeller wheel (24) disposed coaxially with the pump axis (22) in the pump chamber (11), which has a plurality of radial impeller wheel vanes (29) circumferentially spaced apart from each other in the circumferential direction, which between themselves define radial chambers (31) at least axially open, a damping groove (36) open in the direction toward the pump chamber (11), has been provided near the lateral end (202) and approximately extends over the width of the lateral channel, and the damping groove (36) is separated from the lateral channel (20, 21) by an interrupting strip (35) and has a curved contour corresponding to a contour of the lateral channel end (202).