Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material
Patent
1986-06-17
1987-09-08
Garrett, Robert E.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Laminated, embedded member or encased material
416230, 416241B, 291564R, F01D 534, C04B 3564
Patent
active
046920994
ABSTRACT:
A rotary component of a rotary device for heat engines, such as a turbine wheel of a gas turbine or a turbocharger, formed in an integral ceramic-fiber-reinforced sintered ceramic structure. The reinforcing ceramic fibers in the edges of the vanes of the rotary component are oriented radially to prevent the chipping of the edges of the vanes liable to occur in a direction perpendicular to the direction of thickness of the vanes. The rotary component is formed by molding a mixture of a ceramic powder, ceramic fibers and organic additive or additives in a mold having a cavity having the same shape as that of the rotary component except that the depth of sections of the cavity corresponding to the vanes is greater than the height of the vanes to be formed, sintering the molding, and cutting the vanes of the molding in a predetermined height.
REFERENCES:
patent: 2621140 (1952-12-01), Bitterli et al.
patent: 4550004 (1985-10-01), Mizuno
patent: 4552510 (1985-11-01), Takeyuki
patent: 4597926 (1986-07-01), Ando et al.
Homma Takahiko
Wada Shigetaka
Garrett Robert E.
Kabushiki Kaisha Toyota Chuo Kenkyusho
Pitko Joseph M.
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