US3874188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cycle cooling system with rotary condensing dehumidifier
Assignee: United States Department of the Air Force
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Filing: 1974-05-09
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Granted: 1975-04-01
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Expires: 1994-05-09
Abstract
Abstract An air cycle cooling system having a rotary condensing dehumidifier wherein the air from the compressor is passed through the vanes of a transverse flow heat exchanger with the cooled air from the expansion turbine being passed over the external surfaces of the vanes to thereby cool the air within the vanes. The cooling of the air within the vanes causes the moisture to be condensed. The water in the vanes is moved along with the moving air by viscous interaction. The water collects in the end member of the transverse flow heat exchanger and is removed by centrifugal force through poppet valves.
Inventors
- 👤 Eugene A Zara
- 👤 Lawrence L Midolo
- 👤 William C Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:42
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0085; B; B64; B64D; B64D13/00; B64D13/06; B64D13/08; F24F3/00; F24F3/12; F24F3/14; F24F2003/144; F25; F25B; F25B9/00; F25B9/002; F25B9/004; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
189 words
In an air cycle cooling system having an expansion turbine; a dehumidifier having a first air flow path and a second air flow path; means for supplying high pressure air to said first flow path; means for supplying air from the first flow path to said expansion turbine; whereby said air is cooled to a low temperature; means for supplying cooled air from said expansion turbine to the second flow path of said dehumidifier whereby the moisture in the air in said first flow path is condensed to form water; said dehumidifier comprising a transverse flow fan having a rotary fan member and an air duct surrounding the fan member; said fan member having a plurality of hollow vanes forming the first flow path within the vaneS; said air duct forming the second air flow path through the rotary fan member external to the vanes; said rotary fan member having an end member for collecting water formed by the moisture condensed in the first flow path within said vanes; means, responsive the centrifugal force on the water in said end member for removing the water from said end member.
Claim 2
Dependent Claim
189 words
In an air cycle cooling system having an expansion turbine; a dehumidifier having a first air flow path and a second air flow path; means for supplying high pressure air to said first flow path; means for supplying air from the first flow path to said expansion turbine; whereby said air is cooled to a low temperature; means for supplying cooled air from said expansion turbine to the second flow path of said dehumidifier whereby the moisture in the air in said first flow path is condensed to form water; said dehumidifier comprising a transverse flow fan having a rotary fan member and an air duct surrounding the fan member; said fan member having a plurality of hollow vanes forming the first flow path within the vaneS; said air duct forming the second air flow path through the rotary fan member external to the vanes; said rotary fan member having an end member for collecting water formed by the moisture condensed in the first flow path within said vanes; means, responsive the centrifugal force on the water in said end member for removing the water from said end member.
Claim 3
Dependent Claim
81 words
The device as recited in claim 1 wherein said means for removing the water from the end member includes a plurality of poppet valves, adapted to remain close in response to said high pressure air alone and adapted to open in response to said high pressure air and the centrifugal force on the water when water collects in the end member; means, positioned adjacent the poppet valves, for carrying the water, passing through the poppet valves, away from the end member.
Claim 4
Dependent Claim
47 words
The device as recited in claim 2 wherein said means for carrying the water away, includes a nozzle, surrounding each poppet valve, secured to said end member; an annular stationary trough positioned in water receiving relation to the nozzles; a drain outlet connected to said annular trough.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |