Method of securing a tip in a tappet

Details Method of securing a tip in a tappet Method of securing a tip in a tappet

1993-03-26

1995-04-04

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29890046, B23P 1500

Patent

active

054025680

ABSTRACT:
In a tappet for use in an internal combustion engine, a tip is fitted in an engage bore between the top wall of the tappet and an engine valve shaft. The tip has a chamfered portion over which a circumferential projection is pressed by a punch so as to fix the tip in the engage bore firmly. A caulking groove is formed by the punch around the engage bore on the top wall. Owing to the chamfered portion of the tip, a cracking is prevented at the bottom of the groove.

REFERENCES:
patent: 1402226 (1922-01-01), Germonprez
patent: 1691778 (1928-11-01), McDonald
patent: 1973855 (1934-09-01), Long
patent: 3431896 (1969-03-01), Giulietti
patent: 4477714 (1984-10-01), Zorn et al.
patent: 4907330 (1990-03-01), Akao et al.

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