Patent Number: 6,945,749

Title: Turbine blade platform cooling system

Abstract: Aspects of the invention relate to a cooling system for a blade platform that can provide cooling to and reduce stress on the platform. Aspects of the invention relate to including one or more channels in the blade platform such that the channels extend from the trailing edge face of the platform toward, but terminate prior to, the leading edge face of the platform. The channels can be generally oval or oblong in conformation. Extending between the hollow shank and the channels can be a plurality of cooling holes. During engine operation, coolant is supplied to the shank of the blade assembly. Because the pressure at the shank is greater than the pressure at the trailing edge of the platform, coolant flow is induced through the cooling holes and into the channels. After flowing through the channels, the coolant can be dumped at the trailing edge.

Inventors: De Cardenas; Rafael (Orlando, FL)

Assignee: Siemens Westinghouse Power Corporation

International Classification: F01D 5/18 (20060101); F01D 5/02 (20060101); F01D 5/08 (20060101); F01D 005/08 ()

Expiration Date: 09/20/2022