초록 ▼

An electric machine, such as a motor or generator, is configured in a machine housing with a cup-shaped rotor attached to a shaft rotatively supported in the housing, an inner stator coaxial with and enclosed by the rotor, and an outer stator coaxial with and enclosing the rotor. The inner and outer

An electric machine, such as a motor or generator, is configured in a machine housing with a cup-shaped rotor attached to a shaft rotatively supported in the housing, an inner stator coaxial with and enclosed by the rotor, and an outer stator coaxial with and enclosing the rotor. The inner and outer portions of the machine are separated by a magnetic isolator that divides and supports inner and outer portions of the rotor. The magnetic isolator, which supports inner and outer sets of permanent magnets in one embodiment and inner and outer squirrel cage rotor assemblies in another embodiment is preferably made of non-magnetic stainless steel but may also be made of titanium, brass, aluminum, bronze or magnesium, or any material that provides magnetic isolation between the inner and outer portions of the machine.

대표청구항 ▼

[ We claim:] [1.] An electric machine comprising:a machine housing and a shaft rotatively supported within said housing;a rotor coupled to said shaft, said rotor including a set of inner magnetic poles and a set of outer magnetic poles;an inner stator secured within said housing and an outer stator

[ We claim:] [1.] An electric machine comprising:a machine housing and a shaft rotatively supported within said housing;a rotor coupled to said shaft, said rotor including a set of inner magnetic poles and a set of outer magnetic poles;an inner stator secured within said housing and an outer stator secured within said housing;an inner air gap radially separating said inner stator from said inner rotor poles and an outer air gap radially separating said outer stator from said outer rotor poles;a magnetic isolator positioned between said inner and outer rotor poles for magnetically isolating said inner rotor poles from said outer rotor poles to permit said electric machine to operate independently with said rotor interacting solely with said inner stator or independently with said rotor interacting solely with said outer stator.