HORIZONTAL SPIRAL MACHINE Russian patent published in 1995 - IPC

FIELD: compressor engineering. SUBSTANCE: fixed and movable spirals are mounted inside the housing provided with the cover. The movable spiral is movably connected to the eccentric shaft set in bearings and having counterweight and passages at the middle part. One of two arresting baffles is provided with openings and mounted in the plane defined by the cover and spirals. The other baffle is arranged in the plane defined by the housing and casing. Two adjusting screws are mounted at the bottom part of the housing in the space between the housing and casing. The first screw is provided with a reducing valve. The other screw is provided with a check valve. One or multi-entrance thread are made on the outer side of the counterweight. The impeller is mounted on the shaft near the counterweight. One of the bushings are smooth and has slots and rigidly secured to the housing. The other bushing is perforated and threaded and mounted in the space of the first bushing for permitting axial movement. The part of the shaft in the zone of the bushings is provided with inclined grooves. EFFECT: enhanced efficiency. 5 cl, 2 dwg