Refrigeration – Refrigeration producer – Sorbent type
Patent
1975-01-31
1977-04-12
Dority, Jr., Carroll B.
Refrigeration
Refrigeration producer
Sorbent type
62239, 98 79, 126 85B, F23B 1500, F23L 1702
Patent
active
040167305
ABSTRACT:
An improvement in refrigerators of the absorber type in which heat from a flame circulates the refrigerant in the refrigerating cycle, particularly for use in caravans. To prevent the flame being extinguished in draughty conditions there is provided shielding means for protecting the flame, a flue extending from above the flame upwardly to an exit into ambient air, and means at the flue exit such as a venturi device adapted to provide a reduction of pressure from ambient air to the interior of the flue in draughty conditions of the ambient air. Preferably, the shielding means totally encloses the flame and is provided with an inlet connection pipe adapted to provide access for ambient air to the interior of the shielding means, the entrance to the inlet connection pipe having baffles and foils adapted to prevent any reduction of pressure from ambient air to the inlet connection pipe interior in draughty conditions of the ambient air. An ante chamber is preferably interposed in the inlet connection pipe and a moisture trap is preferably interposed in the flue.
REFERENCES:
patent: 119885 (1871-10-01), Roth
patent: 2755794 (1956-07-01), Wendell
patent: 3168091 (1965-02-01), Jackson
patent: 3295334 (1967-01-01), Hultgren
patent: 3302552 (1967-02-01), Walsh
patent: 3347147 (1967-10-01), Howard
patent: 3693610 (1972-09-01), Ehrlichman
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