Gas turbine engine cooling supply circuit

Power plants – Combustion products used as motive fluid – Combustion products generator

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

415115, F02C 712

Patent

active

055557210

ABSTRACT:
A turbine cooling supply circuit for a gas turbine engine is disclosed in which the flow of coolant through the engine is directed to minimize temperature rise prior to discharge into the turbine. Bleed air from an impeller stage of a compressor is channeled along a backwall thereof into a cavity disposed radially inwardly of a combustor casing. The cavity is divided by a lightweight tubular member having a circumferentially uniform contour into a non-flow zone proximate the casing and a flow zone proximate a rotor. Maintenance of a high tangential flow component in the bleed flow in the flow zone facilitates discharge of the flow through apertures in a rotor into a bore portion thereof, minimizing work input and temperature rise of the coolant. Further, the coolant is isolated from the hot casing wall and nonuniform structures disposed thereon, thereby reducing heat flux and temperature rise associated with aerodynamic drag caused by increased surface area, nonuniform interruptions in the stationary surface or any combination thereof. Features are incorporated in the tubular member to provide margin against buckling.

REFERENCES:
patent: 4127988 (1978-12-01), Becker
patent: 4296599 (1981-10-01), Adamson
patent: 4425079 (1984-01-01), Speak et al.
patent: 4459802 (1984-07-01), Mowill
patent: 4462204 (1984-07-01), Hull
patent: 4574584 (1986-03-01), Hovan
patent: 4657482 (1987-04-01), Neal
patent: 4807433 (1989-02-01), Maclin et al.
patent: 4923370 (1990-05-01), Larson et al.
patent: 5144794 (1992-09-01), Kirikami et al.
patent: 5174105 (1992-12-01), Hines
patent: 5187931 (1993-02-01), Taylor
patent: 5189874 (1993-03-01), Kreitmeier
patent: 5271711 (1993-12-01), McGreehan et al.
patent: 5327719 (1994-07-01), Mazeaud et al.
"Combined Power", Flight International 9-15, Jun. 1993, pp. 64 and 67-70.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gas turbine engine cooling supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas turbine engine cooling supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas turbine engine cooling supply circuit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-406754

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.