Regulating oil pump for lubricating internal combustion engine, has control piston comprising circular arc shaped axial recess, and bypass nut radially running towards control piston and disconnected in region of continuous edge of recess

摘要

The pump has an axially adjustable control piston (1) that comprises a circular arc shaped axial recess (3) for anti-twist protection. A bypass nut (2) radially runs towards the control piston. The nut is disconnected in a region of continuous edge (4) of the recess. The bypass nut has a breadth of 4 millimeter (mm) and a depth of 3 millimeter, and comprises a round slot bottom for disconnection of the bypass nut. The recess comprises the edge in a region of the bypass nut.