Patent ID: 6322328
Filing Date: 2001-11-27
Classification: F04B

Abstract:
A radial piston pump (2) having a plurality of pump elements (10) in a pump housing (7) arranged substantially radially around an eccentric shaft (9) whereby said pump elements have an inlet valve (11) and an outlet valve (12) activated by the medium that is to be pumped, and whereby the inlet valves (11) and outlet valves (12) are each disposed at the outer side of the pump elements (10) that faces away from the eccentric shaft (9) and whereby said inlet valves (11) are each arranged, in their flow-through direction, in a continuous extension of the cylinder bore (14) of the pump element (10) substantially coaxial relative to the pump piston (13), and whereby all the inlet valves (11) are connected to a joint intake channel (20) that leads around the outside of the pump housing; characterized in that the pump elements (10) are inserted from the outside and are held in place in a bore (16) of the pump housing (7) as a complete unit, consisting of a cylinder barrel (15), a pump piston (13) and an inlet valve (11), and whereby a joint inlet channel (20) is designed as a groove (21) that is open to the outside, which is covered with a fitted sealing member (22) after mounting of the pump elements (10) onto the pump housing (7), and whereby said channel (20) is connected with a tank (4) via at least one bore (23) in the pump housing (7).