Turbine tip seal damage protection means

Details Turbine tip seal damage protection means Turbine tip seal damage protection means

1994-08-31

1995-08-08

Look, Edward K.

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

4151735, 4151737, 277 53, F01D 1108

Patent

active

054393477

ABSTRACT:
In a steam or gas turbine employing tip seals which are disposed between a stationary shell or spill strip holder and a rotating bucket cover or shroud to minimize steam leakage, the improvement for limiting particle damage to the tip seals and adjacent components comprising: a scoop plate mounted on the shell or spill strip holder from which the tip seals depend, circumferential openings in the tip seals, and expulsion scoops on the scoop plate adjacent the tip seals for deflecting particulate material through the circumferential openings in the tip seals for minimizing damage thereto.

REFERENCES:
patent: 4273510 (1981-06-01), Ambrosch et al.
patent: 4979755 (1990-12-01), Lebreton
patent: 5271712 (1993-12-01), Brandon

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