Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic
Patent
1984-02-13
1985-11-12
Garrett, Robert E.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Coating, specific composition or characteristic
264 60, F01D 534
Patent
active
045525102
ABSTRACT:
A radial type ceramic turbine rotor comprises a shaft portion, a hub integrally connected to the shaft portion, a blade portion integrally formed on said hub, and an end surface on a gas exit side of the hub extending from an end surface of the blade portion in the proximity of the hub. According to the present invention, a fillet is formed at a circular connection between the blade portion and the hub, on the gas exit side of the rotor. The fillet has a concave surface with a radius of curvature of greater than 3 mm. The radial type ceramic turbine rotor of this invention is produced by the steps of injection molding a ceramic material in such a manner that the radius of curvature is more than 3 mm after sintering, removing a plasticizer included in the turbine rotor and sintering it under a normal pressure, thereby precluding the formation of cracks in the fillet.
REFERENCES:
patent: 3887411 (1975-06-01), Goodyear et al.
patent: 4096120 (1978-06-01), Grunke
patent: 4396445 (1983-08-01), Sasaki et al.
patent: 4408959 (1983-10-01), Long et al.
Garrett Robert E.
NGK Insulators Ltd.
Pitko Joseph M.
LandOfFree
Radial type ceramic turbine rotor and method of producing the sa does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radial type ceramic turbine rotor and method of producing the sa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial type ceramic turbine rotor and method of producing the sa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1877568