초록 ▼

A magnetically suspended type momentum ring assembly is comprised of a momentum ring, a non-contact magnetic bearing provided at a peripheral portion of the ring assembly for imparting suspending support in the radial and axial directions to the ring, a drive arrangement means provided at a peripher

A magnetically suspended type momentum ring assembly is comprised of a momentum ring, a non-contact magnetic bearing provided at a peripheral portion of the ring assembly for imparting suspending support in the radial and axial directions to the ring, a drive arrangement means provided at a peripheral portion of the ring for imparting a rotating force to the ring. The non-contact magnetic bearing includes a magnetic suspension arrangement generating a suspendingly supporting force in the radial direction and a magnetic arrangement generating a suspending supporting force in the axial direction.

대표청구항 ▼

A magnetically suspended type momentum ring assembly comprising: a rotatable momentum ring having a rotating axis in the center of said ring, and an annular solid portion thereof whereto an effective mass of said momentum ring is concentrated; a fixed member provided for enclosing therein said rotat

A magnetically suspended type momentum ring assembly comprising: a rotatable momentum ring having a rotating axis in the center of said ring, and an annular solid portion thereof whereto an effective mass of said momentum ring is concentrated; a fixed member provided for enclosing therein said rotatable momentum ring; a non-contact magnetic bearing means for generating a force for suspendingly supporting said rotatable momentum ring in a radial and an axial direction within said fixed member, said magnetic bearing means being arranged in a peripheral portion of said momentum ring assembly; said non-contact magnetic bearing means comprising a first magnetic suspension means including permanent magnet means generating first and second magnetic attractions which are axially opposite to one another and act between said momentum ring and said fixed member, and a second magnetic suspension means including electro-magnet means generating a third axial magnetic attraction varying in response to a change in electric current applied to said electro-magnet means, said first and second magnetic attractions contributing to suspension of said momentum ring in said radial direction, and a combination of said first through third magnetic attractions contributing to the suspension of said momentum ring in said axial direction; means for controlling the electric current applied to said electro-magnet means in response to changes in direction and magnitude of an external force acting on the momentum ring in the axial direction; and a drive means for rotating said momentum ring about said rotating axis, said drive means being provided in said peripheral portion of said momentum ring assembly.