Tappet with ceramic camface
AssigneeStanadyne, Inc.
InventorsRobert C. Behnke, Todd R. Downing
Life of this patent
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Abstract
A tappet for an internal combustion engine includes a tappet body having a camface at one end thereof, which camface is positioned for contact with a rotating camshaft. The camface is formed essentially of zirconium oxide.
Claims8
In a tappet for an internal combustion engine, a tappet body, a disc attached to said tappet body at one end thereof, said disc being formed essentially of zirconium oxide and providing the tappet camface which is positioned for contact with a rotating camshaft, said zirconium oxide disc having wear characteristics compatible with cast iron and steel and having essentially the same coefficient of thermal expansion as the material of the tappet body.
Dependencies are inferred from the claim text.