Magnetic Bearings TRIZ Cases

A dual axial-radial permanent magnet bearing uses symmetric magnetic rings and short-circuit damping to stabilize levitation without active control.

A magnetic barrier separates permanent-magnet and control flux paths, enabling linear axial bearing control under heavy one-way loads.

Two-piece bobbin shells enable axial installation on stator projections, simplifying automation while maintaining insulation and magnetic pole generation.

Axial magnetic poles on a non-magnetic ring correct rotor tilt with less attraction force, lowering power use and improving support stability.

A digitally controlled analog offset corrects zero displacement error in unbalanced inductive sensors while preserving ADC resolution.

Rotor-mounted blades pump cooling fluid through the thrust disk, removing external blowers and cutting auxiliary energy use.

Core slits block eddy current bypass paths in thrust magnetic bearings, improving position control response while easing machining.

Damping elements between the stator and spindle housing suppress critical-speed vibration in magnetic spindles, cutting wear and startup energy.

Ring-core slits block eddy current bypass paths in a thrust magnetic bearing, preserving position-control responsiveness and easing machining.

A toroidal magnetic flux path across an air gap supports rotary loads without contact, cutting friction, wear, and active energy use.

A toroidal magnetic flux path supports axial and radial loads without contact, reducing friction, wear, and energy use even at low speed.

Flow channels in a magnetic bearing thrust collar improve inner ventilation, prevent backflow, and strengthen cooling fluid recirculation.

An unsymmetrical stator frees lower-quadrant space for cooling and instrumentation near the rotor while reducing electromagnet count.

Using smaller lower-quadrant electromagnets, this bearing frees space near the rotor for cooling and sensors while shortening shaft extension.

Replacing mechanical bearings with magnetic support eliminates friction and wear, extending maintenance intervals for marine propulsion systems.

A capacitive electrostatic stabilizer maintains rotor equilibrium using applied potentials to generate restoring forces.

A conical fastening mechanism counters centrifugal forces on a rotor disc, preventing radial expansion and mass unbalance without thermal assembly.

An axial hydraulic fitting port in a lamination sleeve enables precise alignment during installation, preventing shaft damage from misalignment.

Integrating an auxiliary bearing within the stator core reduces rotor length and system volume while maintaining critical speed.

A compensation coil cancels external magnetic excitations to eliminate magnetic leakage and parasitic magnetization.

Semicircular magnets and a shorted winding center a rotor via induced currents, reducing complexity compared to Halbach arrays.

Segmented primary and secondary Halbach arrays adjust stiffness magnitude and sign to resolve Earnshaw's Theorem instability at zero speed.

Merging radial magnetic bearing and bearing shield into one unit increases structural stiffness while reducing weight by 20%.

A vertical magnetic transmission assembly uses magnetic modules to levitate a rotating shaft without mechanical contact.

Radial and axial windings in a laminated stator structure optimize flux paths, reducing eddy current losses and core losses in turbomachines.

A hybrid magnetic bearing combines electromagnets and permanent magnets to control rotor position.

A radial electromagnetic actuator uses segmented control poles and permanent magnets to generate non-contact forces on rotating bodies.

Gradually reducing control current lowers rotor falling velocity, protecting protection bearings from impact shock while maintaining high control efficiency.

Electrostatic fields between stator and rotor electrodes generate speed-independent restoring forces, enabling stable levitation at zero rotation speed.

Segmented magnetic bearing modules enable electric machines to adapt to varying mechanical loads without increasing integration complexity.

Shielding structures between amplifiers and electromagnets resolve the electromagnetic interference trade-off in compact high-speed rotating machinery.

Stator permanent magnet motor magnetic pole bypasses generate adjustable bias fields through closed main loops.

A shaft control device separates whirling displacement from translation signals to suppress high-speed instability.