Turbomachine arrangement with a platform cooling device for a blade of a turbomachine
A turbomachine arrangement having a platform cooling device for a blade positioned at a platform of the blade. The cooling device's peripheral edge is in contact with the platform; a first surface portion forms a first cavity between the cooling device and platform and has impingement holes to impinge onto the platform; a second surface portion forms a second cavity between the cooling device and platform; a barrier in contact with the platform forms a connection between two sections of the edge and fluidically separates the first and second cavity. The cooling device is connected at the edge to the blade so the first and second cavity are formed between the cooling device and blade. The blade has a supply passage, connecting a hollow core and the second cavity for supplying cooling fluid to the second cavity and the first cavity is supplied with cooling fluid via the impingement holes.
SIEMENS AKTIENGESELLSCHAFT
F F F F F Y
F05D F02C F01D F01D F05D Y02T
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Christer Janos Martina
Hjalmarsson Szijarto Johansson