| 摘要 |
The turbine nozzle (30) has a full complement of blades (18), for use, for example, in a compressed-air turbine. However, a pair of peripheral walls (32, 34), at opposite sides of a nozzle platform (12) block nozzle blade groups (38, 40). The walls prevent fluid flow through those blade groups and, consequently, the nozzle is given limited power. A method of achieving this includes machining away of as much of the walls (32, 34) as is necessary to enhance the power of the nozzle by exposing more of the nozzle blades to free fluid flow therethrough. By providing such walled, fully-bladed nozzles, and removing portions of the walls, one can meet any power requirement, from full power to any practical minimum, by removing the walls entirely, or removing only a minor portion of each, respectively. |
