Casing for a thermal turbomachine having a heat-insulating liner

Details Casing for a thermal turbomachine having a heat-insulating liner Casing for a thermal turbomachine having a heat-insulating liner

1981-05-14

1983-09-20

Newsome, John H.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Erodable or permanently deformable

427 34, 427423, B05D 108

Patent

active

044052847

ABSTRACT:
A thermal turbomachine casing having a multilayer heat insulation liner including a metallic bond coat in direct contact with the casing wall, a ceramic heat insulation layer bonded to the bond coat, and preferably an abradable coating in the form of a porous, predominantly metallic, top layer bonded to the ceramic layer. A metallic honeycomb may be fixed to the casing wall, in which case the bond coat, ceramic layer, and top layer are within the cells of the honeycomb. The bond coat and ceramic layer may partially or completely fill the honeycomb cells. The layers may be deposited by flame or plasma spraying, preferably after peening the casing wall. Each succeeding layer is deposited before any cooling of the preceeding layer.

REFERENCES:
patent: 3068016 (1962-12-01), Dega
patent: 3545944 (1970-12-01), Emanuelson et al.
patent: 4055705 (1977-10-01), Stecura et al.
patent: 4248940 (1981-02-01), Goward et al.
patent: 4273824 (1981-06-01), McComas et al.
patent: 4289446 (1981-09-01), Wallace

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