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US 4,550,573 AGranted
Multiple load, high efficiency air cycle air conditioning system
AssigneeUnited Technologies Corporation
InventorGeorge C. Rannenberg
Life of this patent
Estimating the term…
Abstract
An air cycle air conditioning system (10) for rgulating the temperature and pressure of diverse loads includes open and closed loop sections (12) and (16). A first load (14) requiring heating or cooling with constantly supplied fresh air is provided with chilled air from first turbine (75) and warm air from first bypass valve (50). A second load (20) which can be heated or cooled with a supply of recirculating air is provided with chilled air from second turbine (130) and warm air from a second bypass valve (170). Air is supplied to the second turbine from a compressor driven by the first turbine whereby the first turbine maintains the temperature of both loads either by the direct supply of air thereto or by driving another turbo-compressor system.
Claims7
An air cycle air conditioning system characterized by:
- a first load requiring the maintenance of the temperature and pressure thereof by fresh air continuously supplied thereto and subsequently discharged therefrom;
- a first turbine having an inlet and an outlet and adapted for communication with, and driven by a source of pressurized air, said first turbine expanding and chilling said pressurized air and discharging said expanded and chilled air to said first load;
- first means, providing fluid communication between the inlet of said first turbine and said pressurized air source;
- a first compressor having an inlet and an outlet and connected to, and driven by said first turbine and being adapted for the pressurization of a quantity of air circulated therethrough;
- a second turbine having an inlet and an outlet and being connected to said first compressor for providing a measure of input power thereto;
- second means providing fluid communication between the outlet of said first compressor and the inlet of said second turbine, said second turbine being driven by an expanding and chilling said air supplied thereto from said first compressor;
- a second load isolated from said expanded and chilled air discharged to said first load by said first turbine, said second load being capable of having the pressure and temperature thereof maintained by chilled air recirculated therethrough, said chilled air being ducted to said second load from said second turbine;
- and
- third means providing fluid communication between the outlet of said second load with the inlet of said first compressor whereby substantially all the air supplied to said second load by said second turbine is returned from said second load to said first compressor and subsequently to said second turbine for continuous recirculation through said first compressor, said second turbine and said second load, thereby efficiently cooling and pressurizing said second load under power from said first turbine.
6 more elements
An air cycle air conditioning system characterized by:
- a first load requiring the maintenance of the temperature and pressure thereof by fresh air continuously supplied thereto and subsequently discharged therefrom;
- a first turbine having an inlet and an outlet and adapted for communication with, and driven by a source of pressurized air, said first turbine expanding and chilling said pressurized air and discharging said expanded and chilled air to said first load;
- first means, providing fluid communication between the inlet of said first turbine and said pressurized air source;
- a first compressor having an inlet and an outlet and connected to, and driven by said first turbine and being adapted for the pressurization of a quantity of air circulated therethrough;
- a second turbine having an inlet and an outlet;
- second means providing fluid communication between the outlet of said first compressor and the inlet of said second turbine, said second fluid communication means comprising a second compressor having an inlet and an outlet and being connected to, and at least in part driven by said second turbine, said second compressor communicating at an inlet thereof with the outlet of said first compressor and at an outlet thereof, with the inlet of said second turbine for receiving said air compressed by said first compressor, said second compressor further compressing said air and discharging said air for expansion and cooling thereof, to said second turbine;
- a second load isolated from said expanded and chilled air discharged to said first load by said first turbine, said second load being capable of having the pressure and temperature thereof maintained by chilled air recirculated therethrough, said chilled air being ducted to said second load from said second turbine;
- and
- third means providing fluid communication between the outlet of said second load with the inlet of said first compressor whereby substantially all the air supplied to said second load by said second turbine is returned from said second load to said first compressor and subsequently to said second turbine for continuous recirculation through said first compressor, said second turbine and said second load, thereby efficiently cooling and pressurizing said second load under power from said first turbine.
6 more elements
Dependencies are inferred from the claim text.