Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – Non-working and working fluids intermix in working chamber
Patent
1979-05-21
1981-07-21
Vrablik, John J.
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
Non-working and working fluids intermix in working chamber
418DIG1, F04C 2902
Patent
active
042795788
ABSTRACT:
Separation of lubricating oil, entrained in the discharge gas produced by a rotary vane compressor, is achieved in a relatively small space by initially passing the oil-laden discharge gas through a first closed chamber, containing an oil separating element, to form a stream of gas having some of its oil removed and having a desired velocity uniformly distributed across the stream's cross section. The gas stream is then circulated within a second and larger closed chamber where the remaining oil is separated out by gravity settling and impingement on the second chamber's walls. The separated oil collects in a reservoir at the bottom of the second chamber to form an oil pool. The oil-free discharge gas exits through an outlet in the second chamber. Oil is drawn off, and returned to the oil distribution system of the compressor, from a quiet portion of the oil pool which is protected from any turbulence of the gas stream by a shield within the second chamber that extends into the oil pool and prevents the re-entrainment of discharge gas, as gas bubbles, into the protected quiet portion of the pool. The shield also serves to prevent the protected oil from being re-entrained into the discharge gas.
REFERENCES:
patent: 1162962 (1915-12-01), Wilson
patent: 1626768 (1927-05-01), Vollmann
patent: 3312387 (1967-04-01), Cassidy et al.
patent: 3385513 (1968-05-01), Kilgore
patent: 3478957 (1969-11-01), Harlin et al.
patent: 3684412 (1972-08-01), Harlin et al.
patent: 3776668 (1973-12-01), Abendschein
patent: 3877853 (1975-04-01), Harlin
patent: 4071306 (1978-01-01), Calabretta
Kim Tong S.
Lee John S.
Borg-Warner Corporation
Tracy James E.
Vrablik John J.
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