Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1980-04-18
1982-05-11
Makay, Albert J.
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62129, 62158, 417 32, F25B 4900, G05D 2332, F04B 4910
Patent
active
043286780
ABSTRACT:
A protecting device for protecting a refrigerant compressor from overheating or seizure caused by a shortage of refrigerant by any chance such as leakage thereof. The device includes a temperature sensor disposed on the outer wall of the compressor casing in the vicinity of a refrigerant intake suction suction port for sensing the temperature of the outer wall to output the sensed or measured data and a discriminator for discriminating an occurrence of refrigerant shortage by an excess of the data over a predetermined condition for comparison. The signals from the discriminator cause a warning issuance of the refrigerant shortage or an automatic stoppage of the compressor operation.
REFERENCES:
patent: 2447894 (1948-08-01), Bauman
patent: 2811019 (1957-10-01), Courtney, Jr.
patent: 3232519 (1966-01-01), Long
patent: 4028593 (1977-06-01), Newell
patent: 4059366 (1977-11-01), Gannaway
patent: 4167858 (1979-09-01), Kojima et al.
Hasegawa Jun
Inagaki Mitsukane
Kobayashi Hisao
Kono Hiroya
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Makay Albert J.
Tanner Harry
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