Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – With runner shaft of specific shape or material
Reexamination Certificate
2005-08-12
2008-12-02
Edgar, Richard (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
With runner shaft of specific shape or material
C060S226100, C416S129000
Reexamination Certificate
active
07458773
ABSTRACT:
A turbomachine comprising: a gas generator for producing combustion gas; a turbine section through which the combustion gas passes and comprising first and second rows of contrarotating turbine rotor blades respectively driving first and second low-pressure shafts in rotation; and a fan section comprising a first row of fan blades mounted on a front fan shaft that is connected to an upstream end of the first low-pressure shaft, and a second row of fan blades axially offset from the first row and mounted on a rear fan shaft that is connected to an upstream end of the second low-pressure shaft, the front fan shaft being connected to the upstream end of the first low-pressure shaft via a removable sleeve for transmitting torque.
REFERENCES:
patent: 4375906 (1983-03-01), Roberts et al.
patent: 4744214 (1988-05-01), Monsarrat et al.
patent: 5274999 (1994-01-01), Rohra et al.
patent: 2004/0055276 (2004-03-01), John Lewis et al.
patent: 2007/0006569 (2007-01-01), Brault et al.
patent: 0 298 014 (1989-01-01), None
patent: 0 521 379 (1993-01-01), None
patent: 1 403 485 (2004-03-01), None
European Search Report, FA 654219, dated Mar. 14, 2005.
U.S. Appl. No. 12/052,108, filed Mar. 20, 2008, Brault, et al.
Brault Michel
Taillant Jean-Claude
Edgar Richard
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
SNECMA
LandOfFree
Turbomachine with contrarotating fans does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Turbomachine with contrarotating fans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbomachine with contrarotating fans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4048931