COMPRESSOR WITH NON-CONTACT SEALING OF PISTON Russian patent published in 1997 - IPC

FIELD: mechanical engineering; compressors. SUBSTANCE: compressor has at least one cylinder with compression chamber, piston arranged with clearance in compression chamber and provided with guide support and non-contact sealing portions and slider-crank mechanism of drive whose axis of rotation intersects cylinder axis at right angle. End face surface of piston sealing portion is made at angle to cylinder generatrix complying to equation: 0<A<arcsin((R×sinχ)/L where A is angle between normal drawn to end face surface of piston sealing portion and cylinder axis; R is crank radius; L is distance from center of end face surface of piston sealing portion to rear end face of piston guide support portion; χ is angle of crank turning corresponding to maximum compression in cylinder. EFFECT: reduced power losses, increased compressor economy. 3 dwg