Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1993-08-09
1994-09-27
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
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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Cuda Irene
Fuji Oozx Inc.
Painter Michael A.
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