PUSHER PUMP Russian patent published in 2018 - IPC F04B9/04 F04B43/67 

FIELD: engines and pumps.

SUBSTANCE: invention relates to the field of pump construction and can be used for pumping water, oil, corrosive liquids and liquids containing mechanical impurities. Pump contains a housing with plunger pairs, each of which is isolated from the pumped liquid by an elastic diaphragm, and a shaft with cranks in the form of a disk. Compression of each diaphragm is carried out by means of a single crank connected to the radially arranged plungers by means of their supports with the possibility of moving the latter along the cylindrical surface of the crank without detachment. Each of the plungers is provided with at least one channel communicating the cavity of its cylinder at the time of suction with the oil bath of the pump.

EFFECT: design is simplified, dynamic loads are reduced, security increases.

4 cl, 8 dwg