Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1984-05-03
1986-01-28
Cline, William R.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 43, 236 91D, 236 91G, F25B 2900
Patent
active
045665281
ABSTRACT:
A regulator circuit for controlling the cooling and heating power for automotive vehicles, wherein signals proportional to the external temperature, the internal temperature of the vehicle, and the desired temperature are applied to an input amplifier, the output signal of this amplifier being applied as the desired value to the heating system. This output signal is also fed to a second amplifier which is furthermore supplied with the signal proportional to the external temperature. The output signal of this second amplifier serves as the desired value for the cooling system. By means of this arrangement, excessive cooling at the transition point between heating and cooling, as well as oscillation around this transition point, can be prevented. An economical reheat operation is made possible for dehumidifying the air by appropriate selection of resistor values such that the heating system and the cooling system are in simultaneous operation.
REFERENCES:
patent: 4143706 (1979-03-01), Schnaibel et al.
patent: 4416324 (1983-11-01), Sutoh et al.
patent: 4417618 (1983-11-01), Yoshimi et al.
patent: 4450897 (1984-05-01), Iijima et al.
patent: 4482092 (1984-11-01), Biber et al.
Helmle Theodor
Weber Kurt
Cline William R.
Smith Randolph A.
Suddeutsche Kuhlerfabrik Julius Fr. Behr GmbH & Co KG
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