F - Mech Eng,Light,Heat,Weapons – 25 – D
Patent
F - Mech Eng,Light,Heat,Weapons
25
D
306/10, 341/28,
F25D 21/08 (2006.01) F25B 49/00 (2006.01) F25D 29/00 (2006.01) H01H 57/00 (2006.01)
Patent
CA 1299700
03AC6167 CONTROL SYSTEM, METHOD OF OPERATING AN ATMOSPHERIC COOLING APPARATUS AND ATMOSPHERIC COOLING APPARATUS ABSTRACT OF THE DISCLOSURE A control system for regulating electrical power input to the refrigeration mechanism or defrost mechanism in an atmospheric cooling apparatus, including domestic refrigeration appliances, is provided which employs at least one piezoceramic relay device. The electrical power is applied with the piezoceramic relay device. The electrical power is applied with the piezoceramic relay device responsive to control signals and with the control circuitry being directly and ohmically connected to the power source. In one embodiment, the control means employs individual piezoceramic relay devices for power regulation to the respective mechanisms while in a different embodiment a single piezoceramic relay device regulates power input between the refrigeration mechanism and the defrost mechanism. A method of operating the controlled apparatus in such manner and a refrigeration apparatus having such control means are also disclosed.
604442
Harnden John Davis Jr.
Kornrumpf William Paul
Company General Electric
Craig Wilson And Company
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