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US 2016/0241118 A1Published application
Drive system in the form of a torque motor
AssigneeFranke & Heydrich KG
InventorsJoerg EGELHAAF, Peter NIEMEYER
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AssigneeFranke & Heydrich KG
InventorsJoerg EGELHAAF, Peter NIEMEYER
Estimating the term…
A drive system in the form of a torque motor, comprising a stator (1), a rotor (3) and exciter coils (2) on the stator and permanent magnets (4) on the rotor (3), the magnets being located radially opposite one another across an air gap such that electrical excitation of the exciter coils (2) creates magnetic fields extending across the gap and rotating the rotor (3) relative to the stator (1), characterized in that, with the drive system arranged/oriented for normal operation and with the rotor (3) located on the inside, a lower half of the stator (1) has a smaller number of exciter coils than an upper half and, with the stator (1) located on the inside, the upper half of the stator (1) has a smaller number of exciter coils than the upper [lower] half. (FIG. 1)
In a drive system in the form of a torque motor having a stator, a rotor, and exciter coils on the stator and permanent magnets on the rotor, the magnets being located radially opposite one another across an air gap such that electrical excitation of the exciter coils rotates the rotor relative to the stator by means of the magnetic fields that extend across the air gap, wherein, with the drive system arranged/oriented for normal operation and with the rotor located on the inside, a lower half of the stator has a smaller number of exciter coils than an upper half and, with the stator located on the inside, the upper half of the stator has a smaller number of exciter coils than the upper [lower] half.
Dependencies are inferred from the claim text.