Valve seat inductor

Details Valve seat inductor Valve seat inductor

1987-06-11

1988-05-17

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1043, 219 1079, 266129, 148145, H05B 610

Patent

active

047452510

ABSTRACT:
An inductor for inductively heating the valve seat of an engine component includes electrically non-conductive spacer pads on the inductor coil which engage the valve seat surface to establish the inductive coupling gap, and a centering nose which enters the valve stem bore and coacts with a universal coupling between the inductor and the inductor frame to provide concentricity between the valve seat and the core and to accommodate angular variations between the valve seat and the inductor frame.

REFERENCES:
patent: Re29046 (1976-11-01), Delpaggio
patent: 3188440 (1965-06-01), Wokas
patent: 3236993 (1966-02-01), Jones
patent: 3331938 (1967-07-01), McDanels
patent: 3737612 (1973-06-01), Pfaffmann et al.
patent: 3743809 (1973-07-01), Delpaggio
patent: 3761669 (1973-09-01), Delpaggio
patent: 3777096 (1973-12-01), Delpaggio
patent: 3789180 (1974-01-01), Cachat
patent: 3798403 (1974-03-01), Mitchell et al.
patent: 3837934 (1974-09-01), Pfaffmann
patent: 4163884 (1979-08-01), Kobetsky
patent: 4266109 (1981-05-01), Ciolkevich
patent: 4438310 (1984-03-01), Cachat
patent: 4673784 (1987-06-01), Vickers

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