Flow aligned plenum endwall treatment for compressor blades

Details Flow aligned plenum endwall treatment for compressor blades Flow aligned plenum endwall treatment for compressor blades

1995-05-31

1996-12-24

Look, Edward K.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Re-entry working fluid joins inlet working fluid upstream of...

415 574, 415 587, 4151731, 4151734, 415914, F01D 112

Patent

active

055868592

ABSTRACT:
A tip shroud assembly comprising a segmented annular shroud, each segment comprising a radially outer surface, and a radially inner surface including a plurality of first holes defining a first row and a plurality of second holes defining a second row, with each of the rows extending circumferentially along the length of the segment and the first row in spaced relation to the second row. Spaced radially outward from the radially inner surface is a circumferentially extending plenum, and a plurality of first passages extend from one of the first holes to the plenum, and a plurality of second passages extend from one of the second holes to said plenum. The plenum communicates with the radially inner surface through each of the first and second passages, and the length of each of the first passages is at least three times the diameter of the first hole from which it extends.

REFERENCES:
patent: 3365124 (1968-01-01), Burge et al.
patent: 4551064 (1985-11-01), Pask
patent: 4784569 (1988-11-01), Sidenstick et al.
patent: 5161944 (1992-11-01), Wood
patent: 5308225 (1994-05-01), Koff et al.

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