Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1974-06-27
1976-06-29
Davis, Jr., Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 41, 165107, 357 82, 180 65R, 174 15R, F28D 1500
Patent
active
039659712
ABSTRACT:
An SCR which controls the speed of a battery powered vehicle is liquid cooled by a closed circuit cooling system utilizing an oscillating pump, a heat exchanging reservoir, and an SCR mounting block. The SCR mounting block forms a fluid chamber when the SCR is mounted thereto. The heat exchanging reservoir is mounted to the vehicle chassis above the oscillating pump and is connected by tubing to both the pump and to the fluid chamber of the SCR mounting block to allow the pump to recirculate the liquid through the closed cooling system. The oscillating pump is connected to the battery of the vehicle through a chopper circuit to provide pulsating liquid flow from the pump in response to the pulsating D.C. signal from the chopper circuit. The pump thus circulates the heated liquid from the fluid chamber of the semiconductor mounting block to the heat exchanging reservoir where it is cooled and circulated back to the fluid chamber.
REFERENCES:
patent: 2163744 (1939-06-01), Buchanan
patent: 2565273 (1951-08-01), Shuler et al.
patent: 3725566 (1973-04-01), Plizak
patent: 3807489 (1974-04-01), Minbiole et al.
Davis Jr. Albert W.
Eaton Corporation
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