Lubrication – Systems – Rotary compressor
Patent
1990-02-02
1991-05-07
Lazarus, Ira S.
Lubrication
Systems
Rotary compressor
418 96, 418 98, F01M 100
Patent
active
050128965
ABSTRACT:
A lubricating system for a rotary horizontal crankshaft hermetic compressor, including a hermetic shell housing a cylinder block, main bearing and sub bearing which supports one end portion of a crankshaft and an electric motor which supports the other end portion. The shell defines as a lubricating oil sump and receives gas from the cylinder through a discharge orifice. The cylinder block divides the shell into a rear section, housing the electric motor, which section has the outlet end of the gas discharge orifice, and a front section which is in communication with the end of the compressor discharge tube and with the rear shell section through a lower oil passage in the sump. There is a gas duct and a level regulating passage with the gas duct being dimensioned to create a pressure differential between the two sections which is sufficient to elevate the lubricating oil in the front section up to the crankshaft end for lubricating it.
REFERENCES:
patent: 4449895 (1984-05-01), Kurahayashi
patent: 4472121 (1984-09-01), Tanaka et al.
patent: 4568253 (1986-02-01), Wood
patent: 4624630 (1986-11-01), Hirahara et al.
patent: 4781542 (1988-11-01), Ozu et al.
Cariaso Alan B.
Empresa Brasileira de Compressores
Lazarus Ira S.
LandOfFree
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