Adsorption cooler
OwnerPeter Maier-Laxhuber, Fritz J. Kaubekinventors
Life of this patent
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Abstract
An adsorption cooler operating in accordance with the periodical adsorption principle and consisting of at least one adsorption container filled with zeolite. At least one condenser with a collecting container for the water which desorbs from the zeolite and an insulated cooling container which may be closed by a shut-off member are serially connected with the adsorption container. In the cooling container, the adsorption cooler generates ice in stages which acts as a cold buffer. The system is usable for example in solar cooling systems, vehicle air conditioning units and air conditioning insulation as well as beverage coolers.
Claims27
A periodically operating dry adsorption cooler comprising:
- an adsorption container containing a solid adsorption substance in the adsorption container, the solid adsorption substance being capable of desorbing an operating substance in the form of vapor at a relatively high vapor pressure and adsorbing during the subsequent adsorbing phase at a relatively low vapor pressure;
- a condenser for liquefying the operating substance and being connected to the adsorption container;
- a collection container connected to the condenser, and the adsorption container, condenser, and collection container being arranged so that the operating substance liquefied in the condenser is collected in the collection container;
- an insulated cooling container for receiving the liquid operating substance from the collection container, the storage capacity of the insulated cooling container being sufficiently large so that the cooling container is capable of receiving therein operating substance in a sufficient quantity so that operating substance remains in the cooling container during the adsorption phase and at least a portion of the non-adsorbed liquefied operating substance solidifies in the insulated cooling container;
- and
- a selectively operable shut-off member which can be opened and closed independently of the temperature and pressure of said adsorption cooler, and being located between the collection container and the insulated cooling container, whereby when the shut-off member is opened during the adsorption phase, the liquid operating substance in the collection container can flow into the insulated cooling container wherein a portion of the liquid operating substance evaporates into vapor, and the liquid operating substance can flow through the shut-off member in the form of vapor and be adsorbed back into the adsorption substance during the adsorption phase.
A method of operating a periodically operating dry adsorption cooler which includes an adsorption container filled with a solid operating substance which desorbs operating substance in the form of vapor at a relatively high pressure during a desorption phase, and adsorbs the operating substance during a subsequent adsorption phase at a relatively low pressure, a condenser for liquefying the operating substance at a subsequently disposed collection container, an insulated cooling container, and a selectively operable shut-off member located between the collection container and the insulated cooling container and which can be opened and closed independent of the temperature and pressure of said adsorption cooler, said method comprising:
- (a) selectively closing said shut-off member to prevent desorbed operating substance from passing to said insulated cooling container during the desorption phase;
- (b) heating the adsorption container during the desorption phase to cause the solid adsorption substance to desorb the operating substance;
- (c) passing the desorbed operating substance to the condenser for liquification thereof;
- and
- (d) selectively opening said shut-off member during the adsorption phase and directing the liquefied operating substance through the shut-off member into the insulated cooling container wherein the liquefied operating substance in the insulated cooling container evaporates during the adsorption phase and the evaporated portion of the liquefied operating substance is permitted to flow through the shut-off member in the form of vapor and be adsorbed back into the adsorption substance whereby at least a portion of the non-evaporated liquefied operating substance in the insulated cooling container solidifies.
Dependencies are inferred from the claim text.