Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Patent
1984-06-04
1986-04-29
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Selectively adjustable vane or working fluid control means
Upstream of runner
415189, 415217, F04D 2956, F04D 2964
Patent
active
045853908
ABSTRACT:
Stator vane retaining means such as may be used in a compressor of a gas turbine engine is disclosed. The compressor is the type including a casing with first and second annular members and a plurality of vanes, each vane having a vane axis and a root end for mounting to the casing. The stator vane retaining means comprise a first flange extending radially outwardly from the first member and a second flange extending radially outwardly from the second member. The second flange includes a plurality of radially extending recesses. The flanges are adapted to mate so that the first flange encloses the recesses thereby forming a plurality of radially extending holes. Each of the holes is adapted to receive one of the root ends. The stator vane retaining means may also include a plurality of bolts extending through the flanges and intersecting a cut-out portion of each of the root ends of the vanes. In this manner, radial retention of each of the vanes is provided. In a further form of the present invention, the cut-out portion may be contoured and cooperate with the bolt so as to allow limited rotational motion about the vane axis.
REFERENCES:
patent: 2388208 (1945-10-01), Foss
patent: 2622790 (1952-12-01), McLeod
patent: 2625367 (1953-01-01), Rainbow et al.
patent: 2671634 (1954-03-01), Morley
patent: 2894318 (1959-07-01), Bloomberg
Acres Ronald C.
Pirtle George M.
Foote Douglas S.
Garrett Robert E.
General Electric Company
Lawrence Derek P.
Pitko Joseph M.
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