Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1987-09-15
1989-07-18
Arola, Dave W.
Pipe joints or couplings
With casing, lining or protector
Insulated
285114, 285224, 285229, F16L 1112
Patent
active
048488038
ABSTRACT:
Fabric expansion joints suitable for use in the exhaust systems of gas turbines are of three types definable with reference to whether a frame is to be connected to a duct section which is externally insulated or one which is internally insulated. In joints where only the outlet frame or where both the inlet and outlet frames are to be connected to internally insulated sections, the flanges of the liners are connected to their frames in a manner preventing movement of the liners relative to the axis of the flow path through the joint but permitting thermal flange growth relative to the frames. Where a frame is to be connected to an externally insulated duct, the frame includes structure spaced from the flange of the liner which defines therewith an inwardly opening, thermal distribution channel. In each type, the free ends of the liners overlap in a spaced apart relationship and are interconnected in a manner permitting relative lengthwise movement between them. The liners support thermal insulation with the disclosed type consisting of or including a fiber glass blanket within a stainless steel, wire mesh sleeve folded to form a double layer with the wire mesh at its folded over margins interconnected and the insulation connected to the liners.
REFERENCES:
patent: 3730566 (1973-05-01), Kazmierski et al.
patent: 4299414 (1981-11-01), Bachmann
Arola Dave W.
Bachmann Industries, Inc.
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