Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Specific casing or vane material
Patent
1990-08-08
1993-09-07
Turner, A. A.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Specific casing or vane material
415115, 416241R, 428216, 428408, 428426, 428432, 428446, 428212, 428213, 428698, 428701, F01D 102, F04D 2944
Patent
active
052422640
ABSTRACT:
The disclosure is concerned with a thermal land machine which comprises a heat resistant wall for confining a chamber; a heat resistant composite structure disposed in the chamber and in contact with a hot flowing gas; and an apparatus for introducing the hot gas toward the surface of the composite structure. The composite structure including a heat resistant substrate and a continuous refractory coating formed on the substrate and made of a ceramic material. The refractory coating includes at least two layers in a laminated structure each having fine cracks substantially extended in the direction of the thickness of each of the layers and filled with a refractory material in such a manner that the filled cracks in one layer are disconnected with the filled cracks in the adjacent layer. Therefore, the hot gas cannot permeate into the surface of the substrate.
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Doi Masayuki
Kirihara Seishin
Kojima Yoshitaka
Nakashima Shoichi
Ogawa Sai
Hitachi , Ltd.
Turner A. A.
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