Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1993-10-20
1995-01-17
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, F01D 518
Patent
active
053821351
ABSTRACT:
A rotor blade having a cooled integral platform is disclosed. Various construction details are developed which disclose a rotor blade platform having a first cooling hole for directing rotor blade core cooling fluid over a first portion of the platform and a second cooling hole for directing under-platform cavity cooling fluid over a second portion of the platform. In a particular embodiment, a rotor blade platform includes a plurality of first cooling holes and a plurality of second cooling holes. The first cooling holes extend between a core cooling passage within the blade and the platform outer surface. The second cooling holes extend between a damper cavity and the platform outer surface. Both sets of cooling holes are oriented to direct a film of cooling fluid over the platform outer surface and individual cooling holes are aligned with flow streamlines of an interblade vortices to encourage the development of a film of cooling fluid.
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Kwon John T.
United Technologies Corporation
Verdier Christopher
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