Refrigeration – With indicator or tester – Operatively correlated with automatic control
Patent
1984-08-06
1986-09-30
Tanner, Harry
Refrigeration
With indicator or tester
Operatively correlated with automatic control
62209, 622283, F25B 4900
Patent
active
046140875
ABSTRACT:
An apparatus for alarming abnormal coolant in a space cooling cycle, comprising a coolant passage for guiding high-pressure side liquid coolant in said space cooling cycle, a sensor disposed in said coolant passage and provided with a movable part having an operating fluid sealed therein and adapted to be operated by the difference of the pressure of said operating fluid and that of said liquid coolant, and a switch and an alarm device disposed in said coolant passage and interlocked with the movable part, and said operating fluid having higher saturated pressure than the saturated pressure of said coolant and possessing an ability to operate said switch when the extent of subcool of said coolant exceeds a prescribed level and the pressure of the coolant exceeds the pressure of said operating liquid and when the pressure of the coolant exceeds the pressure under which said operating fluid is wholly in a gasified state.
REFERENCES:
patent: 3047696 (1962-07-01), Heidorn
patent: 3161740 (1964-12-01), Schniers et al.
patent: 4008755 (1977-02-01), Vandamme
patent: 4221116 (1980-09-01), Harnish
Nadamoto Hiroyasu
Yoinara Koichi
Hueschen Gordon W.
Nihon Radiator Co. Ltd.
Tanner Harry
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