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US 5,718,125 AGranted
Electrically operated valve and control assembly for small sorption refrigeration/freezers
AssigneeRocky Research
InventorsDennis M. Pfister, Charles M. Byrd, Tom Rand
Life of this patent
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Abstract
A solenoid operated valve for supplying a liquid refrigerant has an inlet port, or outlet port and a valve port therebetween, the outlet port having a restricted opening equal to or smaller than the opening of the valve port, a capillary tube in the outlet port, and a passageway between the valve port and the outlet port having a small volume capable of substantially preventing expansion of liquid refrigerant.
Claims23
A solenoid operated valve assembly comprising a valve body having a liquid refrigerant inlet port and an outlet port, and a valve port therebetween,
- said outlet port including a restriction comprising an opening having a cross-sectional area equal to or smaller than the cross-sectional area of said valve port, a capillary tube secured in said outlet port, and including a passageway between said valve port and said outlet port, said passageway having a volume capable of substantially preventing the expansion of liquid refrigerant therein.
A cooling apparatus comprising:
- one or more adsorption reactors containing an adsorbent on which a refrigerant gas is alternately adsorbed and desorbed,
- a condenser for condensing said refrigerant gas,
- an evaporator and a cooling chamber in thermal exposure therewith,
- a solenoid operated valve assembly including a valve body having a liquid refrigerant inlet port and an outlet port, and a valve port therebetween,
- said outlet port including a restriction comprising an opening having a cross-sectional area equal to or smaller than the cross-sectional area of said valve port, and wherein said valve assembly includes a passageway between said valve port and said outlet port, said passageway having a volume capable of substantially preventing vaporization of liquid refrigerant therein.
2 more elements
Dependencies are inferred from the claim text.