Refrigeration – Automatic control – By congealed removable product condition
Patent
1978-05-30
1980-03-25
Makay, Albert J.
Refrigeration
Automatic control
By congealed removable product condition
62233, 62503, F25B 4300
Patent
active
041943678
ABSTRACT:
In an apparatus for producing ice a compressor which via a liquid separator is supplied with cooling medium from an evaporator, transfers compressed medium to a condenser, the condenser being connected to a liquid collector which in turn is connected to the evaporator. A first controllable valve is connected in the communication path between the liquid collector and the evaporator, and a second controllable valve is connected in the return path between the liquid separator and the evaporator. The first controllable valve is closed during the freezing period and open during the thawing period, whereas the second controllable valve is open during the freezing period and closed during the thawing period, so that the condensate from the condenser during the freezing period is accumulated in the liquid collector without being transferred to the evaporator, a self-circulation of the cooling medium taking place between the liquid separator and the evaporator, and so that the self-circulation of the cooling medium between the liquid separator and the evaporator is stopped during the thawing period and the accumulated condensate in the liquid collector is supplied to the liquid separator via the evaporator, the condensate giving off heat to the evaporator.
REFERENCES:
patent: 3067590 (1962-12-01), Wood, Jr.
patent: 3251195 (1966-05-01), Guetschow
patent: 3487656 (1970-01-01), Grant
patent: 3680324 (1972-08-01), Garland
patent: 3922875 (1975-12-01), Morris, Jr.
patent: 4094168 (1978-06-01), Hamner et al.
patent: 4107943 (1978-08-01), Ohling
A/S Finsam Industries Ltd.
Makay Albert J.
Tapolcai, Jr. William E.
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