Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent
1975-04-14
1976-03-23
Freeh, William L.
Pumps
Three or more cylinders arranged in parallel, radial, or...
184 617, F04B 112, F01M 100
Patent
active
039457656
ABSTRACT:
A refrigerant compressor having pistons reciprocated in respective cylinder by a wobble plate driven by an input rotor which is secured on a drive shaft, which compressor has a reduced volume and an improved lubricant system. An end plate of a housing for the compressor supports and bears the drive shaft and is formed with an oil port extending from a shaft seal cavity mounting a shaft seal of the drive shaft to a gap between the end plate and the rotor, with the drive shaft being formed with another oil port extending the shaft seal cavity and a gap between the rotor and the wobble plate whereby the lubricant oil flows through the gap between the rotor and the wobble plate, the oil port in the drive shaft, the shaft seal cavity, the oil port in the end plate, and the gap between the rotor and the end plate in the order. The rotor is formed with an annular recess on a surface thereof facing the end plate and in eccentricity from the rotating axis of the rotor. A valve plate secured between a cylinder block and a cylinder head is formed of a thin ground steel plate or a thin metal plate used for a spring and is formed with discharge and suction openings by punching. The cylinder head is formed with suction and discharge chambers partitioned with a partition wall means which has sharp end projections formed on an end surface thereof to bite into a gasket between the end of the partition wall and the valve plate to firmly secure the gasket. Two service valves are provided on a side surface of the housing which are communicated with the suction and discharge chambers, respectively, of the cylinder head through a hole extending in the cylinder block and the valve plate.
REFERENCES:
patent: 2835436 (1958-05-01), Steinhagen et al.
patent: 3085514 (1963-04-01), Budzich
patent: 3712759 (1973-01-01), Olson
patent: 3838942 (1974-10-01), Pokorny
Hiraga Masaharu
Shimizu Shigemi
Terauchi Kiyoshi
Toyoda Hiroshi
Freeh William L.
LaPointe G. P.
Sankyo Electric Co., Ltd.
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