Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Reexamination Certificate
2005-11-29
2009-06-30
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
C060S792000
Reexamination Certificate
active
07552582
ABSTRACT:
A turbofan gas turbine propulsion engine includes a system to transfer power from the low pressure turbine to the high pressure turbine and/or extract additional load from the low pressure turbine during certain turbofan engine operational conditions. The systems include a hydrostatic power transfer system that includes a hydraulic pump and a hydraulic motor coupled to the low pressure and high pressure turbine, respectively. The systems additionally include a mechanical and electrical load shifting/loading sharing systems that use clutches and gear assemblies to share and/or shift load between the turbines.
REFERENCES:
patent: 3498057 (1970-03-01), Kronogard et al.
patent: 3786696 (1974-01-01), Aleem
patent: 4041696 (1977-08-01), Morrison
patent: 4251987 (1981-02-01), Adamson
patent: 4326375 (1982-04-01), Kronogard
patent: 4403292 (1983-09-01), Ejzak et al.
patent: 4572961 (1986-02-01), Borger
patent: 4684081 (1987-08-01), Cronin
patent: 4694187 (1987-09-01), Baker
patent: 4908565 (1990-03-01), Cook et al.
patent: 4912921 (1990-04-01), Rice et al.
patent: 4967096 (1990-10-01), Diemer et al.
patent: 5309029 (1994-05-01), Gregory et al.
patent: 5694765 (1997-12-01), Hield et al.
patent: 5783932 (1998-07-01), Namba et al.
patent: 5845483 (1998-12-01), Petrowicz
patent: 5899411 (1999-05-01), Latos et al.
patent: 6082967 (2000-07-01), Loisy
patent: 6124646 (2000-09-01), Artinian et al.
patent: 6142418 (2000-11-01), Weber et al.
patent: 6278262 (2001-08-01), Ullyott
patent: 6344700 (2002-02-01), Eisenhauer et al.
patent: 6467725 (2002-10-01), Coles et al.
patent: 6527660 (2003-03-01), Sugden
patent: 6561940 (2003-05-01), Goi et al.
patent: 6631703 (2003-10-01), Tonnqvist et al.
patent: 6672049 (2004-01-01), Franchet et al.
patent: 6825640 (2004-11-01), Hill et al.
patent: 6895741 (2005-05-01), Rago et al.
EP Search Report, 06115067.8 dated May 30, 2008.
Benson Dwayne M.
Eick Chris D.
Flaherty Brian L.
Gaines Louie T.
Laidlaw Mitchell J.
Cuff Michael
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
Nguyen Andrew
LandOfFree
More electric aircraft power transfer systems and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with More electric aircraft power transfer systems and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and More electric aircraft power transfer systems and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4111913