AIR COOLED GAS TURBINE AEROFOIL
Assignee
ROLLS-ROYCE LIMITED, A BRITISH COMPANY
Filed
Nov 27, 1985
Granted
Oct 8, 1996
Location
BURTON-ON-TRENT EN GB
Abstract
A hollow turbine blade has cooling air feed passages in the wall defining the central cavity. The wall surfaces of the feed passages slope away from the central cavity in a diverging manner, so as to reduce the step difference in metal thickness between the passages relative to the thickness of metal dividing each passage and the central cavity. The temperature gradient from the blade external surface and the wall surface of the central cavity is thus also reduced, avoiding thermal stresses.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 7, 1987
Rescinded
Feb 8, 1995
Duration
7 years, 9 months
Inventor
- 1DUNCAN J. LIVSEY
Record Details
- Patent number
- US 5562409
- Application
- 06820268
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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