Refrigeration – Automatic control – Responsive to vehicle body motion or traction
Patent
1988-03-24
1989-09-26
Wayner, William E.
Refrigeration
Automatic control
Responsive to vehicle body motion or traction
62 61, 62175, 62332, B60H 132
Patent
active
048690716
ABSTRACT:
A cooling system is disclosed for a pod (20) of an aircraft. The cooling system includes an air circulation loop (28) for supplying cooled air to an air input (32) of the pod to cool a load disposed in the pod and for receiving air discharged from an air discharge (34, 35) to the pod which has absorbed heat from the pod. A cooling apparatus (30) is disposed in the loop which is activated to cool air flowing in the loop prior to application to the pod. A fan (48) is located in the air circulation loop between the cooling apparatus and the air discharge (35) which is activated to blow discharged air toward the cooling apparatus when the aircraft is operated in a first portion of the flight envelope. A ram air supply (44) supplies ram air in response to flight of the aircraft. A valve (46), which is coupled to the ram air supply and to the loop blocks the supply of ram air to the loop in response to the aircraft being in the first portion of the flight envelope and supplies ram air to the loop when the aircraft is outside the first portion of the flight envelope. A controller (38), responsive to a temperature sensor (52) sensing air temperature of air supplied to the pod controls the activation of the cooling apparatus in response to the sensing of a temperature above a predetermined temperature when the aircraft is operating in the first portion of the flight envelope.
REFERENCES:
patent: 3177676 (1965-04-01), Abrahams
patent: 3208234 (1965-09-01), Messinger
patent: 4209993 (1980-07-01), Rannenberg
patent: 4313310 (1982-02-01), Kobayashi et al.
patent: 4462561 (1984-07-01), Cronin
patent: 4550573 (1985-11-01), Rannenberg
patent: 4674704 (1987-06-01), Altoz et al.
Bettenga James L.
Biagini Guido
Godecker William J.
Wehner Jeffrey M.
Wigmore David B.
Sundstrand Corporation
Wayner William E.
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