Rotary kinetic fluid motors or pumps – Including thermal expansion joint – Radially sliding
Patent
1991-12-23
1993-10-05
Look, Edward K.
Rotary kinetic fluid motors or pumps
Including thermal expansion joint
Radially sliding
415139, 4152082, 4152092, 4152093, 60 3931, 60 3932, 60751, F01D 904
Patent
active
052499219
ABSTRACT:
A compressor outlet guide vane (OGV) assembly includes inner and outer annular OGV walls, having outlet guide vanes mounted therebetween, are in abutting relationship with the corresponding leading edges of respective inner and outer diffuser casings and not welded to or otherwise supported by the leading edges of the diffuser casings as in the prior art. The OGV assembly is attached to an annular OGV support member that extends from a portion of a corresponding OGV wall circumscribing the thick section of the OGVs. This assembly decouples the inner and outer OGV annular walls from moments or thermally induced radial loads that may be transferred to the OGV walls due to the interface of the diffuser casings and OGV walls and which may in turn induce failure causing stresses in the OGV trailing edges.
One particular embodiment provides an inner conical OGV support member mounted to the inner annular OGV wall at its forward end and bolted, at its aft end, to the inner diffuser support member, which is typically cast integral with the diffuser, and with the inner turbine support member. Another embodiment provides inner and outer conical OGV support members engaging radially extending flange like extensions of corresponding inner and outer diffuser casings.
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Baehre Eric E.
Stueber Henry B.
General Electric Company
Look Edward K.
Squillaro Jerome C.
Verdier Christopher
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