MAGNETIC ROTARY-PISTON COMPRESSOR Russian patent published in 1999 - IPC

FIELD: refrigerating engineering; compression refrigerators. SUBSTANCE: magnetic pistons with salient poles on end faces are fitted in cylinders. External pairs of permanent magnets enclose cylinders and are secured on compressor housing. Compressor rotor providing reciprocating of pistons is made in form of shaft whose middle part serves as rotor of electric motor. Ribbed drums are mounted on shaft symmetrically relative to rotor part of motor for axial displacement along shaft. Cylinders with magnets are installed on drum ribs so that their end faces are located in planes of end faces of corresponding drum. External pairs of magnets are arranged at end faces of each drum to enclosed one part of drum by north pair and the other, opposite part, by south pole pair. Distributing plates with intake and delivery ports are placed between external pair of permanent magnets and end faces of drums. EFFECT: provision of complete dynamic balancing of working mechanism, increased efficiency at low cost of production. 3 dwg