Gas turbine tip shroud blade cavity

Details Gas turbine tip shroud blade cavity Gas turbine tip shroud blade cavity

1998-02-13

2000-05-30

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

4151731, 4151736, 4151745, 416189, F01D 520

Patent

active

060684437

ABSTRACT:
The invention relates to a cavity constituted by a casing of a gas turbine and a moving blade with a tip shroud, by which a cavity space is made to a necessary minimum size, a main flow gas is prevented from being entrained and a pressure loss is reduced. A tip shroud (6) is mounted on a tip end portion of a moving blade (4), a fin (7) is mounted thereon, a recess-like cavity (15) narrower than the conventional one is formed by portions (12a) and (12b) of a casing (12) and the fin (7), and further a projecting portion (16) is provided to an upstream end portion of the tip shroud (6). The projecting portion (16) is at a position (13a) at a time of a cold start and is at a position (13b) at a time of a hot start run, even if a thermal expansion occurs, thus the projecting portion (16) is not in contact with the recess portion, a main flow gas (1) is less entrained within the cavity (15), and a pressure loss is reduced because of no swirl, so that a performance of the gas turbine is enhanced.

REFERENCES:
patent: 3314651 (1967-04-01), Beale
patent: 4161318 (1979-07-01), Stuart et al.
patent: 5188507 (1993-02-01), Sweeney
patent: 5205706 (1993-04-01), Belcher

Affiliated with

Also associated with

Rating

Gas turbine tip shroud blade cavity 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 tip shroud blade cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas turbine tip shroud blade cavity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1906114