Adjustable oil pump for control of the torque with low parasitic losses and rapid feed pressure rise

摘要

An adjustable gear wheel - oil pump has a housing (14), an externally toothed gear wheel (54), which may rotated about a first axis (58) is arranged to be rotatable, an internally toothed gear (84), the about a second axis (88) is arranged to be rotatable and a crescent-shaped body (120) between a first position and a second position is movably arranged, wherein in the first position at least one seal (144) with a region of the externally toothed gear (54) and at least one seal (148) with a region of the internally toothed gear (84) is formed, and when it is in said second position, it does not seal with areas of the externally toothed gear (54) and of the internally toothed gear (84) is entered.