Low-pressure turbine shroud

Details Low-pressure turbine shroud Low-pressure turbine shroud

1991-11-27

1993-02-23

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

4151701, 4151733, 4151734, 4151742, F01D 1108

Patent

active

051885077

ABSTRACT:
A turbine shroud is formed by a ring of butted shroud segments. Each turbine shroud segment has a radially inwardly projecting annular flange which is seated on a radially outwardly facing surface of an annular tip of the outer shroud of the downstream nozzle stage. This flange is free to slide axially relative to the annular tip during thermal expansion of the nozzle outer shroud in the axial direction. Each turbine shroud segment has a spring seated thereon which urges the radially inwardly projecting flange toward the annular tip of the nozzle outer shroud. Honeycomb material attached to the turbine shroud segment discourages the flow of hot gases through the gap betwen the flange and annular tip of the outer shroud of the downstream nozzle stage attributable to seam chording, thereby reducing the leakage of hot gas into the spaces between the shrouds and the outer casing.

REFERENCES:
patent: 3056583 (1962-10-01), Varadi et al.
patent: 3126149 (1964-03-01), Bowers et al.
patent: 3393894 (1968-07-01), Redsell
patent: 3542483 (1970-11-01), Gagliardi
patent: 3947145 (1976-03-01), Michel et al.
patent: 4023919 (1977-05-01), Patterson
patent: 4053254 (1977-10-01), Chaplin et al.
patent: 4087199 (1978-05-01), Hemsworth et al.
patent: 4242042 (1980-12-01), Schwarz
patent: 4303371 (1981-12-01), Eckert
patent: 4524980 (1985-06-01), Lillibridge et al.
patent: 4537024 (1985-08-01), Grosjean
patent: 4551064 (1985-11-01), Pask
patent: 4573866 (1986-03-01), Sandy, Jr. et al.
patent: 4596116 (1987-06-01), Mandet et al.
patent: 4676715 (1987-06-01), Imbault et al.
patent: 4749333 (1988-06-01), Bonner et al.
patent: 4925365 (1990-05-01), Crozet et al.
patent: 5044881 (1991-09-01), Dodd et al.
patent: 5131813 (1992-07-01), Przytulski et al.

Affiliated with

Also associated with

Rating

Low-pressure turbine shroud does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-pressure turbine shroud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-pressure turbine shroud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2200851