Two spool air cycle machine having concentric shafts

Details Two spool air cycle machine having concentric shafts Two spool air cycle machine having concentric shafts

1999-03-06

2000-11-28

Doerrler, William

Refrigeration

Air compressor, cooler and expander type

Motor-type expander

F25D 900

Patent

active

06151909&

ABSTRACT:
A two-spool air cycle machine includes a high pressure cooling turbine section; a low pressure cooling turbine section; and first and second shafts that are concentrically arranged and that are independently rotatable with respect to one another. A turbine wheel of the high pressure turbine section is secured to the first shaft, and a turbine wheel of the second turbine section is secured to the second shaft. Such an air cycle machine may be used a variety of different aircraft environmental control systems.

REFERENCES:
patent: 3877246 (1975-04-01), Schutze
patent: 5309735 (1994-05-01), Maher, Jr. et al.

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