F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
138/41
F28D 19/00 (2006.01) F16H 39/02 (2006.01) G05D 23/185 (2006.01)
Patent
CA 1136956
ABSTRACT OF THE DISCLOSURE A control and drive device for rotary heat exchangers. Drive means are provided for a rotary heat exchanger which com- prises a hydraulic motor and a pump, operated by an electric motor, supplying the hydraulic motor with a pressure medium. A valve is provided between the pump and hydraulic motor. The val- ve is controlled by a temperature scanning member so that the rate and pressure of the pressure medium supplied to the hydraulic motor, and thus the rotary speed of the heat exchanger, is con- trolled by the temperature scanned.
320454
Bergkvist Lars A.
Fetherstonhaugh & Co.
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