Fluid reaction surfaces (i.e. – impellers) – Multiple axially spaced working members
Patent
1990-03-12
1991-10-01
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Multiple axially spaced working members
29525, 295251, 2988921, 403337, F01D 530
Patent
active
050528912
ABSTRACT:
A connection between flanged elements of a gas turbine engine rotor. The connection includes a first annular flange on a first rotor element having a plurality of radially outwardly opening slots, an annular locking ring having a plurality of bolt holes, a second annular flange on a second rotor element, and a plurality of bolts each having a shank with a head at one end and a screw thread at the other end and a locking shoulder therebetween. The bolts are installed radially in the slots so that minimum clearance is required behind the first annular flange. The locking ring fits over the bolt shanks and is press fitted onto the locking shoulders of the bolts so that radial and axial dislodgment of the bolts from the slots is foreclosed. The second annular flange is fitted over the bolt shanks and nuts are screwed onto the bolts to retain the second annular flange. A flat surface on each bolt head is closely adjacent a wall of the first rotor element to prevent the bolts from rotating when the nuts are tightened.
REFERENCES:
patent: 2764266 (1956-09-01), Haworth
patent: 3447822 (1969-06-01), King
patent: 3597110 (1971-08-01), Corsmeier
patent: 3688371 (1972-09-01), Koff
patent: 4088422 (1978-05-01), Martin
patent: 4684320 (1987-08-01), Kunz
patent: 4804288 (1989-02-01), Tiernan, Jr.
patent: 4822204 (1989-04-01), Lindenthal
patent: 4844694 (1989-07-01), Naudet
patent: 4901523 (1990-02-01), Huelster
patent: 4903546 (1990-02-01), Quintille
General Motors Corporation
Kwon John T.
Schwartz Saul
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