ROTARY PUMP Russian patent published in 2018 - IPC F04B43/02 

FIELD: engines and pumps.

SUBSTANCE: invention refers to the rotary diaphragm pump. Pump comprises the body that forms the annular chamber with inlet (32) and outlet (34) ports, which are located on the opposite sides of the partition (36), which runs across the chamber. Flexible annular diaphragm (1) forms one side of the chamber and faces the body wall (30), which forms the second side of the chamber. Outer and inner edges of the diaphragm (1) are sealed in relation to the body. Diaphragm has integrally formed tabs (38), which pass in azimuthal direction around the diaphragm. Inclined washer (50) is connected to the tabs (38) of the diaphragm (1) so that during operation the movement of the inclined washer (50) causes the diaphragm (1) to be pressed sequentially against the body wall (30) in order to suction fluid through the inlet port (32) to one side of the partition (36), moving it through the chamber and injecting fluid through the outlet port (34) on the other side of the partition.

EFFECT: pump is bi-directional, improved reliability and performance are achieved.

10 cl, 7 dwg