Rotary expansible chamber devices – Methods
Patent
1989-09-26
1991-04-02
Vrablik, John J.
Rotary expansible chamber devices
Methods
418 9, 418 15, 418199, 418DIG1, 184 623, 55 52, 55202, 55203, 210787, F04C 218, F04C 1502
Patent
active
050044079
ABSTRACT:
A method of scavenging air and oil from a component (3) of an aircraft for returning the oil to a reservoir (4) for recirculation to the component involves the use of a gear pump (1) for scavenging the oil and gas. The gear pump centrifugally separates oil from the air and returns only the separated oil to the reservoir through outlets located upstream of the mesh zone of the gears while the air is discarded whereby lower discharge pressure of the gear pump is attained and there is no longer a need for a separate air-oil separator.
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Cavanaugh David L.
Sundstrand Corporation
Vrablik John J.
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