Wobble pump of housing divided into intake and delivery has cone angles of piston faces and housing sides nearly equal and specified dividing wall thickness to ensure smooth friction-free pumping action.

摘要

The cone angle (21) of the two piston endfaces (12) roughly equals the cone angle (20) of the two housing side faces (3), with angle difference of 5degrees. The wall thickness of the dividing wall (4) of the housing decreases from the side (3) to the center lane (15) where the wall thickness at the sides (3) amounts to the cosine of the side face (2) cone angle (20). Additional components include the axis of symmetry (14) of the housing (1) and the axis of symmetry (13) of the piston (8).