GB296482A - Improvements in rotary compressors - Google Patents

Abstract

296,482. Dehn, F. B., (Climax Engineering Co.). June 7, 1927. Movable-abutment type; packing; adjusting parts for wear; cooling parts. -A rotary compressor, Figs. 3 and 5, comprises a piston 32 mounted on an eccentric 29 on a shaft 28 and having secured thereto an abutment which slides in a rocker 37 which is adjustably mounted in the cylinder 36 to maintain sealing engagement therein. The compressor is shown in Fig. 1 applied to a refrigerating unit; the compressor is housed in a casing 53 provided with internal and external cooling fins over which air passes from fan blades formed on a flywheel 12; the casing 53 is filled to a level above the shaft with sealing and lubricating fluid, the level being shown by an indicator 52, which is fed by ducts in the shaft, exerting a centrifugal pump action, to required points. The compressed refrigerant is discharged to a separator 13, Fig. 7, the gas passing out by the tube 15 and the separated liquid returning to the casing by the conduit 14. The refrigerant passes to a valve manifold 16 and thence through double-walled tubes 18 to a storage bottle 20. After expansion the gas passes through a sediment trap 22, a strainer, and a non-return valve to the compressor inlet. The piston and shaft are mounted on roller bearings and located by a thrust bearing 48, 49; the shaft is provided with balancing masses 30. The abutment is made fluid-light by driving a pin 43 between it and the butting surface of the piston.