PISTON COMPRESSOR Russian patent published in 1994 - IPC

FIELD: compressor engineering. SUBSTANCE: pistons interconnected via common rods in pairs are received within cylinders oppositely arranged in a case. A driving mechanism is made of a cam. Rollers are secured to the rods to enclose the cam. The cam is rounded on a part of the side bounded with a sector with a central angle at the top of which is equal to 180. Axis of rotation of the cam is shifted with respect of the top along a line which connects end points of arc of the sector. Surface of the remainder part of the cam is defined by a relationship available in the invention description. EFFECT: enhanced efficiency. 2 dwg