| 摘要 |
The invention relates to a cam-driven reciprocating piston pump (1) comprising a pump compartment (4), a camshaft (9, 9') with a cam (20), and a pump piston (16) that rests on a running surface (22) of the cam (20) via a tappet (3), in particular a roller tappet (15). The running surface (22) has a portion (40) in which the running surface (22), which is convex everywhere else in the circumferential direction, is concave in the circumferential direction in order to swiftly relieve a clearance volume of a previously generated high pressure in a suction phase of the reciprocating piston pump. |
