Terrence Emerson

US Patent:

61981745, Mar 6, 2001

Filed:

Jan 28, 2000

Appl. No.:

9/493644

Inventors:

Robert A. Nims - Rancho Palos Verdes CA
Patrick Lee O'Brien - Torrance CA
Terrence Emerson - Hermosa Beach CA

Assignee:

AlliedSignal Inc. - Morristown NJ

International Classification:

F02C 700

US Classification:

290 52

Abstract:

A microturbine power generation system includes an electrical generator, a turbine and a compressor intermediate the generator and the turbine. The turbine, compressor and electrical generator are secured together by a tieshaft. The tieshaft is prestressed such that faces of the turbine, electrical generator and compressor maintain contact during high-speed, high-temperature operation of the system.

US Patent:

6151909, Nov 28, 2000

Filed:

Mar 6, 1999

Appl. No.:

9/263052

Inventors:

Michael E. Carter - Torrance CA
Ronald E. Crabtree - Sun Lakes AZ
Terrence P. Emerson - Hermosa Beach CA
Arturo Moreno - Long Beach CA
Terry Morris - Garden Grove CA
Raymond Rapozo - Anaheim CA
Marshall Saville - Torrance CA

Assignee:

AlliedSignal Inc. - Morristown NJ

International Classification:

F25D 900

US Classification:

62402

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.