VANE-CELL PUMP

摘要

The invention relates to a vane-cell pump (1), especially a regulatable oil pump for a lubrication system. Said pump comprises a pump housing (2) provided with at least one housing tank (6) and a vane rotor (11) which is arranged in the housing tank (6) and rotatably mounted in the pump housing (2) by means of a drive shaft (10) forming a rotational axis (23), said vane rotor comprising vanes (15) which are mounted approximately in radially extending receiving slits (14). A retaining ring (27) surrounds the vane rotor (11) and defines pump cells (26) on the peripheral side. Said retaining ring can be adjusted by means of a cylindrical inner wall surface (31), between a position which is concentric to the vane rotor (11) and a position which is eccentric to the vane rotor, and is subjected to adjusting torques by the medium pressure and an adjusting device (47) for regulating the pressure level.