Cooled air cycle system and method for operating such a system
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United States of America Patent
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-
Jul 1, 1997
Grant Date -
N/A
app pub date -
Oct 11, 1995
filing date -
Feb 20, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cooled air cycle system having a compressor (1) for compressing air, heat exchangers (3,4,5) for cooling the compressed air, a water separator (6) for withdrawing water from the compressed air, and an expander (2) for expanding the air back to substantially compressor inlet pressure, which air is cooled and can be used, for example, for air-conditioning. A regenerative dryer (7) is provided in conduits between the compressor (1) and the expander (2). The dryer (7) includes a water adsorbing section (18), which alternatingly is brought into contact with the compressed air at at least two locations (A,B,C). In one location (B), which is after the first heat exchanger (3) and the water separator (6), water is adsorbed from the air by the adsorbing section (18), and in another location (A), which is before the first heat exchanger (3) and the water separator (6), the adsorbing section (18) is regenerated in that the adsorbed water is brought away by the air. The cooling effect required for cooling the air between compression and expansion therethrough is considerably decreased.
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