Pump arrangement, particularly for fuel injection systems of air-compressing, self-igniting internal combustion engines, has sliding vane pump with outer ring and impeller which is arranged in outer ring

摘要

The pump arrangement (1) has a sliding vane pump (3) with an outer ring (4) and an impeller (5) which is arranged in the outer ring. The outer ring is adjusted for varying the delivery volume of the sliding vane pump relative to the impeller. The outer ring is movably supported in the housing (2), and an axis (10) of the impeller is firmly arranged to the housing.