Servo valve torque motor
First Claim
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1. A servo valve torque motor apparatus comprising:
- a pair of pole pieces;
one or more permanent magnets held between the pole pieces;
an armature supported between the pole pieces for rotation about an axis;
the armature being for connection to a member that resists rotation of the armature; and
a coil on the armature;
wherein when an electrical current is passed through the coil the armature is rotated against the member; and
wherein the one or more magnets are secured to the two pole pieces by mechanical fixings passing through holes through the center of the one or more magnets.
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Abstract
A servo valve torque motor apparatus including a pair of pole pieces; one or more permanent magnet(s) held between the pole pieces an armature supported between the pole pieces for rotation about an axis; the armature being for connection to a member that resists rotation of the armature; and a coil on the armature; wherein when an electrical current is passed through the coil the armature is rotated against the member; and wherein the magnet(s) is/are secured to the two pole pieces by mechanical fixings passing through holes in the magnet(s).
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13 Claims
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1. A servo valve torque motor apparatus comprising:
a pair of pole pieces;
one or more permanent magnets held between the pole pieces;
an armature supported between the pole pieces for rotation about an axis;
the armature being for connection to a member that resists rotation of the armature; and
a coil on the armature;
wherein when an electrical current is passed through the coil the armature is rotated against the member; and
wherein the one or more magnets are secured to the two pole pieces by mechanical fixings passing through holes through the center of the one or more magnets.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
Specification