Push rod

Details Push rod Push rod

1988-05-27

1989-07-25

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Rod

F01L 114

Patent

active

048503150

ABSTRACT:
A one-piece push rod and method of making same is provided which includes the step of swaging ends of a hollow tube so that end portions have been reduced to 90%-50% of the starting stock. Preferably, the tube is characterized by a thicker middle portion which tapers down to the ends of reduced diameter. Spherical seats of constant wall thickness are formed by first machining a taper on the tips and then cold forming the tapered tips with a punch.

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