Outboard Marine Corporation

Daniel R Dykstra

William R Krueger

David W Windstein

An electromagnetic solenoid includes a housing enclosing an electromagnetic coil assembly. An armature is disposed within the electromagnetic coil assembly. An end of the housing is provided with an annular groove. A nut is selectively received by the groove for varying the magnetic path of the coil assembly. Adjustment of the nut thereby sets the solenoid at a predetermined armature activation force accounting for manufacturing tolerances of the solenoid components as well as variations in the electric current supplied to the coil assembly.

Solenoid with variable magnetic path

Proportional control of the output of an alternator achieved mechanically to change the reluctance of the magnetic path between the stator and the rotor and thereby change the electrical output of the alternator.

Growing community of inventors

Wales, WI, United States of America

Daniel R Dykstra