Environmental control system including air cycle machine and ele

Details Environmental control system including air cycle machine and ele Environmental control system including air cycle machine and ele

1997-12-09

2000-05-09

Tanner, Harry B.

Refrigeration

Processes

Reducing pressure on compressed gas

62172, 62402, F25B 906

Patent

active

060587156

ABSTRACT:
An environmental control system includes an air cycle machine, an electrical machine coupled to the air cycle machine, and a controller for the electrical machine. The controller can cause electrical energy to be extracted from the electrical machine whenever cooling capacity and/or airflow rate of the air cycle machine are greater than necessary. The electrical machine can also be operated as a motor to increase the airflow rate and cooling capacity of the air cycle machine.

REFERENCES:
patent: 3024624 (1962-03-01), Morley et al.
patent: 3878692 (1975-04-01), Steves
patent: 4494372 (1985-01-01), Cronin
patent: 4684081 (1987-08-01), Cronin
patent: 5114103 (1992-05-01), Coffinberry
patent: 5143329 (1992-09-01), Coffinberry
patent: 5442905 (1995-08-01), Claeys et al.
patent: 5887445 (1999-03-01), Murry et al.

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