Patent ID: 6050795
Filing Date: 2000-04-18
Classification: F02M,F04C,F05C

Abstract:
A fuel feed pump for a fuel injection pump for internal combustion engines, comprising a pump chamber, a pair of gear wheels (7, 9) that mesh with one another, means for driving the gear wheels to rotate in said pump chamber (3), said gear wheels pump fuel out of an intake chamber (13) that communicates with a supply tank along a feed conduit (17), said feed conduit is formed between an end face of the gear wheels (7, 9) and a circumferential wall of the pump chamber, and feeds fuel into a pressure chamber (15) that communicates with the fuel injection pump, said gear wheel (7) is secured to and driven by a shaft (5), said shaft is driven to rotate by a driven element (8) that engages the shaft (5), and the drive element (8) is connected to the shaft (5) by an overload safety device (10), said overload safety device (10) includes a shaft portion (32) of the shaft (5), said shaft portion (32) is disposed in a bore (31) of the drive element (8) and the shaft portion (32) is connected nonpositively to the bore (31), and includes an elastic connecting element (34) on the shaft portion (32) that is press-fitted into the bore (31) of the drive element (8)and at least a slight axial offset between a longitudinal axis (37) of the shaft (5) and a longitudinal axis (38) of the drive element (8) is compensated for by the overload safety device (10).