VOLUMETRIC PUMP WITH ACTUATING MECHANISM Russian patent published in 2011 - IPC F04B7/00 

FIELD: engines and pumps.

SUBSTANCE: volumetric pump includes, at least, one piston (1), located inside cylindrical cover (2), and device of relative linear reciprocating movement that appears between cylindrical cover (2) and piston (1) for creating volumetric pump piston stroke. Additionally this pump includes turn disc (4) performed with the possibility of turning in two angular directions and acting as a valve that alternatively connects, at least, one inlet and, at least, one outlet (5, 5'), to at least one pump chamber (6, 6') located inside the cover (2), and actuating mechanism that is designed for, at least, partial separation of two-directional angular movement of turn disc (4) and relative linear reciprocating movement of the cover (2). Actuating mechanism is performed in such a way that turn disc (4) achieves angular position when it opens and/or closes inlet and/or outlet (5, 5*), when there is no relative linear reciprocating movement between cylindrical cover (2) and piston (1).

EFFECT: structure dimensions are decreased by means of larger angle of valve switching, the accuracy of fluid metering is provided.

8 cl, 26 dwg