Expansible chamber devices – Relatively movable working members – Interconnected with common rotatable shaft
Patent
1992-08-31
1993-08-10
Look, Edward K.
Expansible chamber devices
Relatively movable working members
Interconnected with common rotatable shaft
384620, F01B 300
Patent
active
052339130
ABSTRACT:
A swash plate type compressor is provided having multiple cylinder bores in opposed cylinder blocks with heads, and a piston slidably mounted in each pair of opposed cylinder bores for compressing refrigerant gas. A drive or swash plate provides reciprocal movement of the piston in response to a rotary drive shaft. Thrust bearing assemblies each including a pair of Belleville spring washers are provided on opposite sides of the drive plate. A plurality of rollers held by a cage are positioned in between the washers. When compressed during assembly of the compressor by tightening the through bolts, the washers are flattened so as to extend in a plane substantially perpendicular to the axis of the shaft and provide an axial preload force to compensate for tolerance clearance and wear, and to absorb axial shock loading. A resilient O-ring is mounted on the shaft between one of the washers and the adjacent drive plate to dampen vibration.
REFERENCES:
patent: 2374820 (1945-05-01), Kaye
patent: 2433518 (1947-12-01), Ljunggren
patent: 3393022 (1968-07-01), Alven et al.
patent: 3469896 (1969-09-01), Pitner
patent: 3934956 (1976-01-01), Pitner
patent: 4268233 (1981-05-01), Fernstrom
patent: 4363608 (1982-12-01), Mulders
patent: 4379425 (1983-04-01), Ishizuka
patent: 4511193 (1985-04-01), Geczy
patent: 4701110 (1987-10-01), Iijima
General Motors Corporation
Griffin Patrick M.
Look Edward K.
Lopez F. Daniel
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