Phung V Duong

US Patent:

20080199326, Aug 21, 2008

Filed:

Feb 21, 2007

Appl. No.:

11/677189

Inventors:

MIKE M. MASOUDIPOUR - RANCHO PALOS VERDES CA, US
ALLEN HANSEN - ANAHEIM CA, US
CHRIS SPEIGHTS - LONG BEACH CA, US
PHUNG K. DUONG - LONG BEACH CA, US

Assignee:

HONEYWELL INTERNATIONAL INC. - MORRISTOWN NJ

International Classification:

F04B 17/03
F04B 25/00

US Classification:

417247

Abstract:

A two-stage vapor cycle compressor includes a first stage impeller, a second stage impeller situated adjacent to the first stage impeller, an electric motor running on a pair of foil bearings, a thrust disk including two foil bearings and being positioned between the second stage impeller and the electric motor, and a compressor housing enclosing the first and second stage impeller and the electric motor. A refrigerant vapor compressed by the first stage and second stage impeller flows through an internal passageway formed by the compressor housing and cools the foil bearings and the electric motor. The compressor may be a gravity insensitive, small, and lightweight machine that may be easily assembled at low manufacturing costs. The two-stage vapor cycle compressor may be suitable for, but not limited to, applications in vapor compression refrigeration systems, such as air-conditioning systems, for example, in the aircraft and aerospace industries.

US Patent:

20090044548, Feb 19, 2009

Filed:

Sep 19, 2008

Appl. No.:

12/234517

Inventors:

MIKE M. MASOUDIPOUR - RANCHO PALOS VERDES CA, US
ALLEN HANSEN - ANAHEIM CA, US
CHRIS SPEIGHTS - LONG BEACH CA, US
PHUNG K. DUONG - LONG BEACH CA, US
ZENG QIAN - TORRANCE CA, US

Assignee:

HONEYWELL INTERNATIONAL INC. - MORRISTOWN NJ

International Classification:

F25B 1/00
F04B 17/03
F04B 17/00
F25B 31/02

US Classification:

62115, 41742312, 41742314, 62505

Abstract:

A two-stage vapor cycle compressor includes a first stage impeller, a second stage impeller situated adjacent to the first stage impeller, an electric motor running on a pair of foil bearings, a thrust disk including two foil bearings and being positioned between the second stage impeller and the electric motor, and a compressor housing enclosing the first and second stage impeller and the electric motor. A refrigerant vapor compressed by the first stage and second stage impeller flows through an internal passageway formed by the compressor housing and cools the foil bearings and the electric motor. The compressor may be a gravity insensitive, small, and lightweight machine that may be easily assembled at low manufacturing costs. The two-stage vapor cycle compressor may be suitable for, but not limited to, applications in vapor compression refrigeration systems, such as air-conditioning systems, for example, in the aircraft and aerospace industries.