Temperature tolerant vane assembly

Details Temperature tolerant vane assembly Temperature tolerant vane assembly

2006-09-12

2006-09-12

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

Changing state mass within or fluid flow through working...

C416S233000

Reexamination Certificate

active

07104756

ABSTRACT:
A vane assembly10suitable for a turbine engine features a refractory vane12with an internal cavity20and a pair of flexible metallic baffles26extending into the cavity from spanwisely opposite ends of the vane. A rigid fastener48, such as a nut and bolt assembly applies a tensile load to the baffles. The tensile load is reacted out as a compressive load applied to the vane. In another embodiment, the baffle is relatively rigid but the fastener is flexible. The compressive loading exerted on the vane counteracts the brittleness customarily exhibited by refractory materials and imparts damage tolerance to the vane. The arrangement also allows the use of a metal baffle that can be easily secured to the vane and dispenses with any need for a potentially troublesome seal between the baffles and the spanwise extremities of the vane.

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European Search Report for European Patent Application 05253604.2.

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