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US 6,581,394 B1Granted
Air-based refrigeration system
AssigneeJacob Bletnitsky
InventorBoris Smolenskiy
Life of this patent
Estimating the term…
Abstract
A refrigerating method and system using compressed, filtered, dehumidified, turbo expanded and re-circulated air for the enclosed refrigerated environment. Compressed air passes via a series of moisture-removal devices (12, 24, 32), dust filter (52), heat exchanger (60), turbine expander (65), impeller fan (92), vacuum refrigeration chamber (70) and muffler (98).
Claims17
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander;
- Said dehumidification devices comprising a pre-cooler for cooling compressed air with tap water;
- Dryer means containing moisture-absorbing material, and
- Moisture separator means for blocking the entry of water and oil droplets into a compressed air line.
6 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander;
- Said dehumidification devices comprising a pre-cooler for cooling compressed air with tap water;
- Dryer means containing moisture-absorbing material;
- Moisture separator means for blocking the entry of water and oil droplets into a compressed air line, and
- Said moisture separator means including a screen with small openings.
7 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander, and
- Said refrigerator including a refrigeration chamber and adjacent channel for delaying exit of the refrigerated air from said refrigerator.
4 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigeration-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander, and
- Said refrigerator including a refrigeration chamber and an adjacent channel for delaying exit of the refrigerated air from said refrigerator;
- Said channel guiding the refrigerated air exited from the refrigeration chamber into a wave-like path.
5 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander, and
- Said refrigerator including a refrigeration chamber and an adjacent channel for delaying exit of the refrigerated air from said refrigerator;
- Said channel guiding the refrigerated air exited from the refrigeration chamber into a wave like path;
- and
- Said channel including a series of staggered fins forming said wave-like path.
7 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander far refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander;
- Said refrigerator including a refrigeration chamber and an adjacent channel for delaying exit of the refrigerated air from said refrigerator;
- Said heat exchanger cooling the incoming dehumidified air with the air coming from said refrigeration chamber.
5 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander, and
- Said refrigerator including a refrigeration chamber and an adjacent channel for delaying exit of the refrigerated air from said refrigerator;
- and
- Said refrigerator including an opening in a partition separating said channel from said refrigeration chamber.
6 more elements
A refrigeration system comprising:
- A multiphase dehumidification means for removing oil and water vapor from said system;
- Said dehumidification means including a moisture absorber and tap water cooling means;
- A dust filter for catching absorber dust;
- A heat exchanger for cooling the filtered and dehumidified air;
- A turbine expander supplying refrigerated air;
- A fan drawing air from a refrigerator, then compressing and evacuating said air out of the system;
- and
- Waste collection means for removing suspended particles from the refrigerator.
5 more elements
A refrigeration method comprising the following steps:
- Compressing air with a standard compressor;
- Cooling air with tap water lines in a pre-cooler for its dehumidification;
- Separating water and oil droplets from the air by a moisture extractor;
- Absorbing moisture in dryer including a moisture absorbing material;
- Cooling the dehumidified air in a heat exchanger;
- Producing refrigerated air in a turbine expander using the air cooled in the heat exchanger;
- Extending the time of the refrigerated air presence in a refrigerator by guiding said air into a wave-like path between refrigerator channel fins;
- Using the refrigerated air for cooling the dehumidified air in said heat exchanger;
- Attenuating noise of the system by a muffler.
6 more elements
An air-based refrigeration system comprising:
- A series of dehumidification devices for sequential removal of oil and water vapor from compressed air;
- An air heat exchanger for cooling the dehumidified air by refrigerated air;
- A turbine expander for refrigerating the dehumidified air to subzero temperatures;
- A refrigerator for taking heat load from the refrigerator-contained items;
- An impeller means drawing air out of the refrigeration chamber and into said heat exchanger;
- A controlling means for regulating the flow of air into said turbine expander;
- Said dehumidification devices comprising a pre-cooler for cooling compressed air with tap water;
- Dryer means containing moisture-absorbing material;
- Moisture separator means for blocking the entry of water and oil droplets into a compressed air line;
- A dust filter for removing suspended particles from compressed and dehumidified air;
- A muffler for noise attenuation of air prior to its exiting from the system;
- A heater for drying moisture-absorbing material in said dryer;
- A waste collection means for accumulating snowflakes and particles exiting from said refrigerator;
- Said impeller means including a fan sitting on the same shaft with said turbine expander.
11 more elements
Dependencies are inferred from the claim text.