Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1985-02-19
1987-02-03
Makay, Albert J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 53, 34 55, F26B 2522
Patent
active
046400222
ABSTRACT:
A clothes dryer of the dehumidifying type in which exhaust air from a drying space containing a load being dried is subjected to heat exchange with external air for removing moisture from the exhaust and, after being re-heated by a heater, the exhaust air is returned to the drying space again by a fan so as to dry the load with heated air. The clothes dryer includes a first heat-sensitive device for measuring the temperature of exhaust air at an outlet of the drying space, and a second heat-sensitive device for measuring the temperature of the exhaust air after having been subjected to the heat exchange with external air or the temperature of the external air after having been subjected to the heat exchange with the exhaust air. The difference between the temperatures measured by the first and second heat-sensitive device at a predetermined time after the starting of the drying operation is stored in a memory as a reference value A, and the later relation between the measured temperature difference and the reference value A, is checked to control the termination of the heat drying operation.
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Hirota Tatsuya
Maeda Masahiko
Suzuki Masami
Makay Albert J.
Sanyo Electric Co,. Ltd.
Westphal David W.
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