TURBINE ENGINE WITH DIFFERENTIAL GEAR DRIVEN FAN AND COMPRESSOR

Title:

TURBINE ENGINE WITH DIFFERENTIAL GEAR DRIVEN FAN AND COMPRESSOR

Document Type and Number:

WIPO Patent Application WO2006059970

Kind Code:

A3

Abstract:

A gas turbine engine (10) provides a differential gear system (58) coupling the turbine (20) to the bypass fan (14) and the compressor (16). In this manner, the power/speed split between the bypass fan and the compressor can be optimized under all conditions. In the example shown, the turbine drives a sun gear (74), which drives a planet carrier (78) and a ring gear (80) in a differential manner. One of the planet carrier and the ring gear is coupled to the bypass fan, while the other is coupled to the compressor.

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Inventors:

SUCIU GABRIEL L (US)
PAGLUICA GINO J (US)
DUONG LOC QUANG (US)
PORTLOCK LAWRENCE E (US)

Application Number:

PCT/US2004/039972

Publication Date:

October 26, 2006

Filing Date:

December 01, 2004

Export Citation:

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Assignee:

UNITED TECHNOLOGIES CORP (US)
SUCIU GABRIEL L (US)
PAGLUICA GINO J (US)
DUONG LOC QUANG (US)
PORTLOCK LAWRENCE E (US)

International Classes:

F02C7/36; F02C3/113

Foreign References:

US4251987A	1981-02-24
US5466198A	1995-11-14
US4817382A	1989-04-04
US6381948B1	2002-05-07
EP1429005A2	2004-06-16

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