Hollow turbine blade with internal cooling system
First Claim
1. A hollow turbine blade equipped with a cooling system, said blade comprising an intrados wall, an extrados wall, first and second ends respectively defining a root and a tip of said blade, two internal partitions connected to said intrados and extrados walls and dividing the interior of said blade into at least one internal cavity extending from said root to said tip of said blade, a median partition connected to said two internal partitions to divide the internal cavity defined between said two internal partitions into two half-cavities, said median partition leaving an aperture in the proximity of one of said ends of said blade to establish communication between said two half-cavities separated by said median partition, air inlet holes opening into said half-cavity on the intrados side of said median partition in the proximity of the other of said ends of said blade, air flow disturbing means disposed on at least part of the internal face of said intrados wall opposite said median partition, and air outlet holes provided in said extrados wall opposite said median partition.
3 Assignments
0 Petitions
Accused Products
Abstract
A hollow turbine blade equipped with a cooling system comprises a pair of internal partitions connected to the intrados and extrados walls of the blade and dividing the interior of the blade into at least one internal cavity extending from the root end to the tip end of the blade, a median partition connected to the two internal partitions to divide the cavity defined between the two internal partitions into two half-cavities, the median partition leaving an aperture at or near one end of the blade to establish communication between the two half-cavities, air inlet holes opening into the half-cavity on the intrados side of the median partition at or near the other end of the blade, air flow disturbing regions disposed on at least part of the internal face of the intrados wall opposite the median partition, and air outlet holes provided in the extrados wall opposite the median partition. Preferably each half-cavity is divided into two passages by half-partitions extending between the median partition and the intrados and extrados walls from root to tip of the blade.
43 Citations
10 Claims
- 1. A hollow turbine blade equipped with a cooling system, said blade comprising an intrados wall, an extrados wall, first and second ends respectively defining a root and a tip of said blade, two internal partitions connected to said intrados and extrados walls and dividing the interior of said blade into at least one internal cavity extending from said root to said tip of said blade, a median partition connected to said two internal partitions to divide the internal cavity defined between said two internal partitions into two half-cavities, said median partition leaving an aperture in the proximity of one of said ends of said blade to establish communication between said two half-cavities separated by said median partition, air inlet holes opening into said half-cavity on the intrados side of said median partition in the proximity of the other of said ends of said blade, air flow disturbing means disposed on at least part of the internal face of said intrados wall opposite said median partition, and air outlet holes provided in said extrados wall opposite said median partition.
Specification