Valve seat resurfacing apparatus

Details Valve seat resurfacing apparatus Valve seat resurfacing apparatus

1985-05-28

1986-12-23

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Frictionally engaging sides of opening in work

408127, 464906, 51241VS, B23B 4760

Patent

active

046309772

ABSTRACT:
An apparatus and method for resurfacing valve seats in a cylinder head are based upon utilizing a modified constant velocity universal joint of the type used in front wheel drive automobiles. A valve seat resurfacing cutting tool is driven at a constant velocity by the universal joint. Use of such joint allows the series of valve seats having parallel valve stem guide holes to be resurfaced after bringing the axis of one of the corresponding valve stem guide holes into a precise vertical position.

REFERENCES:
patent: 1985278 (1934-12-01), Bradley
patent: 3617143 (1971-11-01), McKee
patent: 3728940 (1973-04-01), Peterson
patent: 4147462 (1979-04-01), Appleby et al.
patent: 4555205 (1985-11-01), Hiroyasu et al.

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