Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1982-12-13
1984-11-27
Scott, Samuel
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, 416145, 416500, 416 97R, F01D 518
Patent
active
044848595
ABSTRACT:
In order to damp possible vibration of a rotor blade for a gas turbine engine, the blade has a hollow tip portion with an internal surface extending across the direction of the centrifugal field on the blade. A weight comprising e.g. Silicon Nitride or Carbide is caused by centrifugal force to bear on this surface. Relative motion and hence friction between the weight and the surface serves to damp vibration of the blade.
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Coplin John F.
Pask George
Sadler John H. R.
Bowman Brian J.
Rolls-Royce Limited
Scott Samuel
LandOfFree
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