Closed or open air cooling circuits for nozzle segments with whe

Details Closed or open air cooling circuits for nozzle segments with whe Closed or open air cooling circuits for nozzle segments with whe

1995-08-01

1997-01-07

Look, Edward K.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

416 96A, F01D 906

Patent

active

055910025

ABSTRACT:
The nozzle segment includes a vane having a plurality of axially spaced cavities for transmission of a cooling medium. In a closed circuit cooling system, air is transmitted radially inwardly and outwardly through inserts in leading and intermediate cavities, respectively, for flow through holes for impingement cooling of the adjoining vane surfaces. Radial inlet flow of cooling medium to an aft cavity likewise flows through an insert for impingement cooling of the aft cavity walls. The cooling medium flows from the aft cavity into a trailing edge cavity for impingement cooling of the trailing edge. The spent cooling flow passes through a channel in the diaphragm into the wheelspace. In the open air circuit, the spent impingement flow in the leading and intermediate cavities passes through openings in the vane wall for thin film cooling of the vane. An insert is received in the trailing edge cavity for impingement cooling of the trailing edge walls and flow towards the trailing edge on opposite sides of a tongue for turbulent flow through a multiplicity of openings through the trailing edge into the hot gas stream.

REFERENCES:
patent: 3628880 (1971-12-01), Smuland et al.
patent: 3628885 (1971-12-01), Sidenstick et al.
patent: 3806275 (1974-04-01), Aspinwall
patent: 3807892 (1974-04-01), Frei et al.
patent: 3891348 (1975-06-01), Auxier
patent: 4017207 (1977-04-01), Bell et al.
patent: 4297077 (1981-10-01), Durgin et al.
patent: 4355952 (1982-10-01), Brown et al.
patent: 4379677 (1983-04-01), Hallinger et al.
patent: 4573865 (1986-03-01), Hsia et al.
patent: 4666368 (1987-05-01), Hook, Jr. et al.
patent: 4721433 (1988-01-01), Piendel et al.
patent: 4826397 (1989-05-01), Shook et al.
patent: 5100291 (1992-03-01), Glover
patent: 5116199 (1992-05-01), Ciokajlo
patent: 5205115 (1993-04-01), Plemmons et al.
patent: 5219268 (1993-06-01), Johnson
patent: 5232343 (1993-08-01), Butts
patent: 5253976 (1993-10-01), Cunha
patent: 5259730 (1993-11-01), Damlis et al.
patent: 5320485 (1994-06-01), Bourguignon et al.
patent: 5363654 (1994-11-01), Lee
patent: 5391052 (1995-02-01), Correia et al.
patent: 5399065 (1995-03-01), Kudo et al.
"Advanced Cooled First Stage Vane Design," Levari et al., ASME 84-GT-219.
"Flow in Corners of Passages with Non-Circular Cross-Sections," Eckert et al., ASME Paper, Aug. 22, 1955.

Affiliated with

Also associated with

Rating

Closed or open air cooling circuits for nozzle segments with whe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closed or open air cooling circuits for nozzle segments with whe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed or open air cooling circuits for nozzle segments with whe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1759674