Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – With runner shaft of specific shape or material
Patent
1989-12-15
1991-12-17
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
With runner shaft of specific shape or material
F01D 2500
Patent
active
050730851
ABSTRACT:
A nickel plate is brazed to a shaft of a ceramic turbine wheel by way of a brazed joint layer of the composition consisting of 20 to 70 wt % of silver, 1 to 20 wt % of palladium, 10 to 60 wt % of nickel and 1 to 10 wt % of titanium. The nickel plate is brazed to a metal shaft by interposing therebetween a tungsten base alloy plate and another nickel plate. The nickel plates, tungsten base alloy plate and metal shaft are brazed together by way of respective brazed joint layers of the composition which does not include titanium. A metal sleeve is installed on the shaft of the ceramic turbine wheel, metal shaft and the metal plates. The metal sleeve is brazed to the metal shaft by way of a brazed joint layer of the composition including less than 1 wt % of titanium. The brazed joint layer for brazing the metal sleeve and metal shaft together is formed by the filler metals for forming the brazed joint layers for brazing the nickel plates, tungsten alloy plate and metal shaft together.
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Ito Masaya
Miyama Katsumi
Look Edward K.
NGK Spark Plug Co. Ltd.
Nguyen Hoang
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