초록 ▼

An inductor-alternator provides highly efficient conversion between mechanical and electrical energy. The inductor-alternator produces increased output by providing armature coils in a single air gap formed between two halves of a toothed rotor. In preferred embodiments, field coils of a magnetic ci

An inductor-alternator provides highly efficient conversion between mechanical and electrical energy. The inductor-alternator produces increased output by providing armature coils in a single air gap formed between two halves of a toothed rotor. In preferred embodiments, field coils of a magnetic circuit are energized with DC drive current that creates homopolar flux within the rotating rotor. Airgap armature coils are mounted with the field coils to form a stationary assembly that is placed within the single air gap in the rotor so that the changing flux density (due to the rotating teeth) induces an output voltage in the armature coils. The rotor and stationary assembly are mounted in a housing by bolts that may also be used as terminals for the armature coils to reduce assembly complexity and production cost. The combined assembly provides high energy and power density because tip speed of the rotor is maximized and the use of air gaps is minimized.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus for providing emergency power in the event of a disruption in power from a primary power source, said apparatus comprising:a rotatable mass that stores mechanical energy, said rotatable mass having only a single magnetic air gap formed between first and sec

[ What is claimed is:] [1.]1. An apparatus for providing emergency power in the event of a disruption in power from a primary power source, said apparatus comprising:a rotatable mass that stores mechanical energy, said rotatable mass having only a single magnetic air gap formed between first and second halves of said rotatable mass, said first half having protrusions extending therefrom into said air gap;a plurality of stationary armature coils mounted within said air gap;a stationary field coil that, in response to a drive signal, causes said apparatus to convert mechanical energy stored by said rotatable mass to electrical power at a high frequency; anda converter circuit that converts said high frequency electrical power to low frequency electrical power for output to a load.