COUNTER ROTATING LOW PRESSURE COMPRESSOR AND TURBINE EACH HAVING A GEAR SYSTEM

Title:

COUNTER ROTATING LOW PRESSURE COMPRESSOR AND TURBINE EACH HAVING A GEAR SYSTEM

Document Type and Number:

WIPO Patent Application WO/2013/187944

Kind Code:

A3

Abstract:

A compressor section includes a counter rotating low pressure compressor that includes outer and inner compressor blades interspersed with one another and are configured to rotate in an opposite direction than one another about an axis of rotation. A transmission couples at least one of the outer and inner compressor blades to a shaft. A turbine section includes a counter rotating low pressure turbine having an outer rotor that includes an outer set of turbine blades. An inner rotor has an inner set of turbine blades interspersed with the outer set of turbine blades. The outer rotor is configured to rotate in an opposite direction about the axis of rotation from the inner rotor. A gear system couples at least one of the outer and inner rotors to the shaft.

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Inventors:

SUCIU GABRIEL L (US)
MERRY BRIAN D (US)

Application Number:

PCT/US2013/027550

Publication Date:

February 13, 2014

Filing Date:

February 25, 2013

Export Citation:

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Assignee:

UNITED TECHNOLOGIES CORP (US)

International Classes:

F02K3/072; F02C3/067

Foreign References:

US7950220B2	2011-05-31
US20100154384A1	2010-06-24
US8015798B2	2011-09-13
US4860537A	1989-08-29
US4969325A	1990-11-13

Other References: