Method of manufacturing a tappet for an internal combustion engi

Metal working – Method of mechanical manufacture – Prime mover or fluid pump making

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2988803, 2988846, B23P 1500

Patent

active

053497481

ABSTRACT:
A method of manufacturing a tappet used in a valve operating mechanism of a direct acting type in an internal combustion engine. A tip engaged with a center bore of an inner upper surface of a tappet body includes upper and lower convex surfaces and a rounded upper circumferential corner having a certain curvature. thereby preventing concentration of stress even if the tip is subject to high compression load. Thus, durability and reliablity of the tappet are increased.

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