Rotary kinetic fluid motors or pumps – Plural runners supported for relative motion or on separate... – Interdigitated – oppositely extending – coaxial – axially...
Patent
1984-10-01
1990-03-13
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Plural runners supported for relative motion or on separate...
Interdigitated, oppositely extending, coaxial, axially...
415190, 4152093, 416215, F01D 126
Patent
active
049079441
ABSTRACT:
An improved blade mounting arrangement for a gas turbine engine with a turbine and an annular flowpath therethrough is disclosed. The improvement comprises a one-piece outer casing and a one-piece inner casing bounding the flowpath. The outer casing has a plurality of circumferential recesses disposed therein with each of the recesses having first and second axially opposite circumferential slots. A plurality of first turbine blades, each with axially facing tangs on a mounting platform, mate with the slots in the outer casing recess. The inner casing has a plurality of recesses disposed therein, each of the recesses including a forward circumferential slot and concentric aft radially outer and radially inner circumferential slots. A plurality of second turbine blades, each with forward and aft axially facing tangs on a mounting platform, mate with respective ones of forward slot and radially outer slot in the inner casing recess.
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Kirkpatrick Ralph A.
Kroger Gerard P.
Peck Robert A.
Casaregola Louis J.
General Electric Company
Herkamp Nathan D.
Lawrence Derek P.
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