SYSTEM TO FORCE GAS INTO GAP OF COMPRESSOR CONTACTLESS CYLINDER-PISTON PAIR AND DOUBLE-ACTION COMPRESSOR WITH SAID SYSTEM Russian patent published in 2009 - IPC F04B25/00 

FIELD: engines and pumps.

SUBSTANCE: proposed system feed gas into sealed gap between compressor cylinder and piston from additional compression chamber arranged as close to the said gap as possible. Separate compression chamber is formed by additional cylinder-piston pair arranged inside the main one. Aforesaid separate chambers are located concentrically with respect to working compression chambers, inside or outside them, and connected also to the compressor suction system via, for example, contactless intake valve formed by mating elements of the piston and intake opening. Gas seal of valve clearance is ensured by aforesaid separate chamber with similar counter backflow. Aforesaid back flows seal the working compression chamber to prevent gas seals and effects gas transfer to consumers with no losses.

EFFECT: higher efficiency and quality, longer life, simple design.

2 cl, 8 dwg