Electrically powered differential air-cycle air conditioning mac

Details Electrically powered differential air-cycle air conditioning mac Electrically powered differential air-cycle air conditioning mac

1996-08-15

1998-01-20

Kilner, Christopher

Refrigeration

Air compressor, cooler and expander type

Motor-type expander

2441185, 310112, F25D 900

Patent

active

057091030

ABSTRACT:
A digital computer controlled air-cycle air conditioning machine for aircraft contains an electrically powered compressor that turns independently of expansion turbine rotation. An electrical generator coupled to the expansion turbine creates additional electrical power during the air expansion portion of the refrigeration cycle. Under control of the computer, that additional electrical power is returned to the electrical supply for re-use with the compressor. The compressor and turbine are manufactured as a unitary assembly. The generator's field windings rotate with the turbine and the generator's armature rotates with the compressor shaft. Voltages generated in the generator's field winding are thereby dependent on the differential speed between turbine and compressor.

REFERENCES:
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patent: 3105631 (1963-10-01), Hanny
patent: 3194026 (1965-07-01), LaFleur
patent: 3321930 (1967-05-01), LaFleur
patent: 4312191 (1982-01-01), Biagnini
patent: 4419926 (1983-12-01), Cronin et al.
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patent: 4684081 (1987-08-01), Cronin
patent: 4694654 (1987-09-01), Kawamura
patent: 4706908 (1987-11-01), Huffman et al.
patent: 5150585 (1992-09-01), Markiewicz
patent: 5309029 (1994-05-01), Gregory
patent: 5535601 (1996-07-01), Teraoka

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