Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1974-09-25
1976-06-29
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416500, F01D 518
Patent
active
039663574
ABSTRACT:
The impingement baffle insert of a turbomachinery blade is provided with a collar around a portion thereof, the collar having a chamfered surface on the radially inner end and adapted to be frictionally engaged by a damper which also surrounds a portion of the insert and which tends to move radially outward over the beveled surface when acted on by centrifugal forces caused by rotation of the blade. The damper is thus wedged between the insert and the blade inner wall to reduce or prevent relative movement therebetween which is normally caused by thermal and vibrational forces. The integrity of the combination is thus improved to reduce the incidence of insert and turbine blade failure.
REFERENCES:
patent: 2144428 (1939-01-01), Martin
patent: 2568726 (1951-09-01), Franz
patent: 2783023 (1957-02-01), Stalker
patent: 2862686 (1958-12-01), Bartlett
patent: 2873944 (1959-02-01), Wiese et al.
patent: 3644060 (1972-02-01), Bryan
patent: 3700348 (1972-10-01), Corsmeier et al.
patent: 3715170 (1973-02-01), Savage et al.
patent: 3867068 (1975-02-01), Corsmeier et al.
Bigelow Dana F.
General Electric Company
Lawrence Derek P.
Powell Jr. Everette A.
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