A refrigeration compressor has three equispaced cylinders projecting at right angles to the motor shaft each with a piston driven from a crank on the shaft

摘要

The compressor housing (2) is positioned above an electric motor whose drive shaft terminates in a crank section (18) which has a sleeve (26) driving three pistons (11,11a,11b) in cylinders (7,7a,7b) in a radial configuration from the motor axis. The crank sleeve has connecting rods (29,31,32) with spherical ends to drive the pistons with the eccentric rotation.