Title:
GAS TURBINE ENGINE WITH HIGH SPEED LOW PRESSURE TURBINE SECTION AND BEARING SUPPORT FEATURES
Document Type and Number:
WIPO Patent Application WO/2014/018142
Kind Code:
A3
Abstract:
A gas turbine engine includes a very high speed low pressure turbine such that a quantity defined by the exit area of the low pressure turbine multiplied by the square of the low pressure turbine rotational speed compared to the same parameters for the high pressure turbine is at a ratio between about 0.5 and about 1.5. The high pressure turbine is supported by a bearing positioned at a point where the first shaft connects to a hub carrying turbine rotors associated with the second turbine section.
Inventors:
SUCIU GABRIEL L (US)
SCHWARZ FREDERICK M (US)
KUPRATIS DANIEL BERNARD (US)
MERRY BRIAN D (US)
ACKERMANN WILLIAM K (US)
SCHWARZ FREDERICK M (US)
KUPRATIS DANIEL BERNARD (US)
MERRY BRIAN D (US)
ACKERMANN WILLIAM K (US)
Application Number:
PCT/US2013/037675
Publication Date:
May 01, 2014
Filing Date:
April 23, 2013
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP (US)
International Classes:
F01D25/16; F02C7/06
Foreign References:
| US4809498A | 1989-03-07 | |||
| US20090229242A1 | 2009-09-17 | |||
| US20060236675A1 | 2006-10-26 | |||
| US6619030B1 | 2003-09-16 |
Other References:
AMERICAN INSTITUTE OF AERONAUTICS AND ASTRONAUTICS INC.,: "Aircraft Engine Design", vol. 2ND, 2002, AMERICAN INSTITUTE OF AERONAUTICS AND ASTRONAUTICS INC.,, ISBN: 1-56347-538-3, article MATTINGLY ET AL., pages: 292 - 310, XP008175104
See also references of EP 2841718A2
See also references of EP 2841718A2
Attorney, Agent or Firm:
OLDS, Theodore W. (Gaskey & Olds/Pratt & Whitneyc/o CPA Global,P.O. Box 5205, Minneapolis Minnesota, US)
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