Air/oil separator for transmissions and transaxles

Details Air/oil separator for transmissions and transaxles Air/oil separator for transmissions and transaxles

2011-08-02

2011-08-02

Smith, Duane (Department: 1776)

Gas separation: apparatus

Degasifying means for liquid

Liquid flow slinger, spreader, deflector, disperser, or...

C095S261000, C184S006230, C184S006240

Reexamination Certificate

active

07988772

ABSTRACT:
An air/oil separator includes a housing having an inlet for aerated oil or hydraulic fluid and outlets for the separated air and oil or fluid. The housing is generally cylindrical and defines an upper, inlet portion, a center, separator portion and a lower collector portion. The upper, inlet portion of the housing includes a first, tangential inlet passageway which merges with a second, spiral or circular passageway. The spiral or circular passageway communicates with the cyclonic separator portion which may be either cylindrical or frusto-conical. A coaxial outlet in the upper, inlet portion allows separated air to return to the engine or transmission housing while an outlet in the lower, collector portion returns oil or hydraulic fluid to the device.

REFERENCES:
patent: 1440808 (1923-01-01), Wineman
patent: 2034914 (1936-03-01), Lanser
patent: 3722624 (1973-03-01), Buckland
patent: 3771290 (1973-11-01), Stethem
patent: 4363641 (1982-12-01), Finn, III
patent: 5203891 (1993-04-01), Lema
patent: 5587068 (1996-12-01), Aho et al.
patent: 6458191 (2002-10-01), Lingelem et al.
patent: 7811364 (2010-10-01), Saito
patent: 2007/0163442 (2007-07-01), Saito et al.
patent: 2008/0179227 (2008-07-01), Saito

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