G - Physics – 05 – D
Patent
G - Physics
05
D
342/38
G05D 7/06 (2006.01) F02D 35/00 (2006.01) F02M 3/09 (2006.01) F02M 7/24 (2006.01)
Patent
CA 1070801
SOLENOID APPARATUS Abstract of the Disclosure Solenoid apparatus. First and second electrical windings are supplied current and the current flow through each of the wind- ings induces respective magnetic fields the strengths of which are functions of the average current flow therethrough and the mag- netic fields combine to produce a net magnetic field. An armature is movable in either of two directions between a first position and a second position through a predetermined number of discrete inter- mediate positions. The armature is biased toward one of the inter- mediate positions constituting a reference position and the posi- tion of the armature at any one time is determined by the strength of the net magnetic field and a biasing force on the armature. A current source supplies current to the windings and the current source is controllable to vary the average current flow in each winding to produce movement of the armature from one position to another. The average current flow in each winding is variable be- tween a minimum and a maximum value in steps and the predetermined number of intermediate positions to which the armature is movable corresponds to the number of these steps.
295101
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