Metal-ceramic fitting assembly
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYasunobu Kawaguchi, Toshiaki Muto, Tatsuo Ichinokawa
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Abstract
A metal-ceramic composite fitting assembly is described in which an effective connection between a boss on the ceramic member and the metal shaft member is achieved by providing the shaft with a sleeve formed of a material having a coefficient of thermal elongation comparable to that of the ceramic member, which sleeve is joined to the shaft member and cooperates with a recess therein to engage the boss along its length and to impose thereon compressive gripping forces that increase in magnitude along the length of the boss.
Claims6
A metal-ceramic composite body including a member formed of ceramic material having a generally cylindrical boss extending from the surface of said member to a free leading end and a shaft formed of a metal material whose coefficient of thermal expansion is greater than that of said ceramic material, and means for connecting said shaft to said boss, comprising:
- a cup-shaped end on said shaft defined by a recess on said shaft receiving the leading end of said boss and a sleeve affixed to said shaft end, said sleeve having a through-opening coaxially aligned with said recess in said shaft to enclose said boss and being formed of a metal whose coefficient of thermal expansion corresponds substantially with that of said ceramic material, and bearing means interposed between facing surfaces of said connecting means and said boss for imposing a compressive force about the surface of said boss that increases in magnitude axially along said boss toward the leading end thereof upon heating said composite body and subsequent cooling thereof.
Dependencies are inferred from the claim text.