Power plants – Combustion products used as motive fluid – With lubricators
Reexamination Certificate
2006-02-21
2010-11-23
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
With lubricators
C184S006110
Reexamination Certificate
active
07836675
ABSTRACT:
An active air pressure control apparatus for a bearing sump cavity in a gas turbine engine includes a bearing assembly supporting a rotatable shaft that connects a rotatable power turbine and a rotatable compressor. The active air pressure control apparatus also includes a sump cavity surrounding the bearing assembly, a sump pressurization cavity in flow communication with a source of pressurized air and in flow communication with the sump cavity, and a sump vent tube in flow communication with the sump cavity and an air/oil separator. The active air pressure control apparatus includes an adjustable valve in the sump vent tube, and a controllable blower in flow communication with the sump vent tube.
REFERENCES:
patent: 2672010 (1954-03-01), Newcomb
patent: 3378104 (1968-04-01), Venable
patent: 3527054 (1970-09-01), Hemsworth
patent: 3722212 (1973-03-01), Stein
patent: 3884041 (1975-05-01), Zerlauth
patent: 4176651 (1979-12-01), Backus
patent: 4262775 (1981-04-01), Webb
patent: 4284174 (1981-08-01), Salvana et al.
patent: 4433539 (1984-02-01), Norris et al.
patent: 4511016 (1985-04-01), Doell
patent: 4576001 (1986-03-01), Smith
patent: 4888947 (1989-12-01), Thompson
patent: 4891934 (1990-01-01), Huelster
patent: 5319920 (1994-06-01), Taylor
patent: 5429208 (1995-07-01), Largilliet et al.
patent: 5611661 (1997-03-01), Jenkinson
patent: 6099243 (2000-08-01), Fiore
patent: 6470666 (2002-10-01), Przytulski et al.
patent: 6799112 (2004-09-01), Carter et al.
patent: 7093418 (2006-08-01), Morris et al.
patent: 7426834 (2008-09-01), Granitz et al.
patent: 2003/0097872 (2003-05-01), Granitz et al.
Corattiyil Bala
Melton Stephen Eugene
Andes Esq. William Scott
Armstrong Teasdale LLP
Cuff Michael
General Electric Company
Wongwian Phutthiwat
LandOfFree
Supercore sump vent pressure control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Supercore sump vent pressure control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supercore sump vent pressure control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4247716