COOLED BLADES FOR A GAS TURBINE ENGINE
Assignee
UNITED TECHNOLOGIES CORPORATION, A CORP. OF DE
Filed
Aug 24, 1988
Granted
Feb 24, 1998
Location
PALM BEACH GARD FL US
Abstract
An internally air cooled turbine blade for a gas turbine engine of the type including a trailing edge section, leading edge section and mid chord section wherein each section includes a straight through radial passage communicating cooling air from the root to the tip of the blade, and the radial passages (feed channels) on the pressure side and suction side supply the cooling air to the film cooling holes in the airfoil surface and the radial passage (feed chamber) in the mid chord section replenishes the feed channels with cooling air through replenishment cooling holes interconnecting the feed channels and feed chamber. The rotation of the blade imparts a centrifugal pumping action to the air within the feed chamber for maximizing the cooling effectiveness of the cooling air. The air discharging at the tip cools the tip of the blade and provides tip aerodynamic sealing and the leading edge and trailing edge are similarly fed cooling air.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 30, 1989
Rescinded
Mar 18, 1997
Duration
7 years, 11 months
Inventor
- 1ROBERT R. SELLERS
Record Details
- Patent number
- US 5720431
- Application
- 07236092
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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