PISTON PUMP-COMPRESSOR Russian patent published in 2016 - IPC F04B19/06 

FIELD: pumps.

SUBSTANCE: invention relates to pump-and compressor building. Pump-compressor comprises cylinder 1, trunk piston 3, compressor cavity 4 with valves 5 and 6. Cylinder 1 is mounted on crankcase 7, which is connected with cooling jacket 11 and via check valve 12 -with the fluid consumer, and, via heat exchanger 13 - with fluid source. Cooling Jacket 11 is made in the shape of circular cylinder 14 open towards crankcase 7. Piston 3 is equipped with additional annular piston 15 providing for a possibility of its movement with clearances 16 and 17 in circular cylinder 14 making pump cavity 18. Due to intensive cooling and reduced gas leaks there is achieved a higher efficiency of compressor cavity 4 and it becomes possible to obtain high pressure of the liquid without contamination of the compressed gas.

EFFECT: can be used in production of volumetric action hybrid piston machines primarily with low and medium capacity, intended for compression and delivery to the consumer, simultaneously or alternately, of liquids and gases.

2 cl, 1 dwg