Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2011-04-19
2011-04-19
Rodríguez, William H (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S773000, C060S778000
Reexamination Certificate
active
07926287
ABSTRACT:
A method of operating a gas turbine engine having a rotatable turbine shaft with an electric machine mounted to the shaft. The method includes providing supplemental acceleration and/or deceleration of the turbine shaft of the gas turbine engine through the use of the electric machine operated as an electric motor and/or an electric generator, in order to avoid an undesirable engine speed range during engine operation.
REFERENCES:
patent: 4062186 (1977-12-01), Snow et al.
patent: 4341071 (1982-07-01), Abo et al.
patent: 4578955 (1986-04-01), Medina
patent: 5555722 (1996-09-01), Mehr-Ayin et al.
patent: 5694765 (1997-12-01), Hield et al.
patent: 5867979 (1999-02-01), Newton et al.
patent: 5966925 (1999-10-01), Torikai et al.
patent: 6107693 (2000-08-01), Mongia et al.
patent: 6125625 (2000-10-01), Lipinski et al.
patent: 6467725 (2002-10-01), Coles et al.
patent: 6606864 (2003-08-01), Mackay
patent: 6672049 (2004-01-01), Franchet et al.
patent: 6688097 (2004-02-01), Chapman et al.
patent: 6712314 (2004-03-01), Stephan
patent: 6825640 (2004-11-01), Hill et al.
patent: 6914344 (2005-07-01), Franchet et al.
patent: 7188475 (2007-03-01), McGinley et al.
patent: 7204090 (2007-04-01), O'Connor
patent: 2002/0083714 (2002-07-01), Bakholdin
patent: 2002/0099476 (2002-07-01), Hamrin et al.
patent: 2004/0065092 (2004-04-01), Wadia et al.
patent: 2006/0026323 (2006-02-01), Ando
patent: 2006/0042252 (2006-03-01), Derouineau
patent: 2006/0108807 (2006-05-01), Bouiller et al.
patent: 2006/0225431 (2006-10-01), Kupratis
patent: 2007/0013195 (2007-01-01), Mukavetz et al.
patent: 0798454 (1997-10-01), None
patent: 1050672 (2000-11-01), None
patent: 062371 (2001-11-01), None
patent: 9517591 (1995-06-01), None
patent: WO2005059316 (2005-06-01), None
patent: WO2005054645 (2005-07-01), None
patent: WO2005073519 (2005-08-01), None
patent: WO2005111381 (2005-11-01), None
JP57-193724 (ITO) Nov. 29, 1982, Abstract.
JP63-289228 (TAKAGI) Nov. 25, 1988, Abstract.
International Search Report of PCT/CA2008/000641.
European Search Report of Feb. 9, 2007.
Fielding Bruce
Trumper Ronald
Ullyott Richard
Ogilvy Renault LLP
Pratt & Whitney Canada Corp.
Rodríguez William H
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