초록 ▼

An electric machine is provided. The electric machine includes at least one stator, a shaft, movable in rotation around an axis of rotation, two rotors, each being interdependent of the shaft, at least two bearings, able to support both rotors and the shaft. A single bearing is located between both

An electric machine is provided. The electric machine includes at least one stator, a shaft, movable in rotation around an axis of rotation, two rotors, each being interdependent of the shaft, at least two bearings, able to support both rotors and the shaft. A single bearing is located between both rotors along the axis of rotation.

대표청구항 ▼

1. An electric machine comprising: a single frame including only one end bearing and supporting two stators;a shaft movable in rotation around an axis of rotation and extending through the frame via a first end plate disposed at one end of the frame and via a second end plate disposed at another end

1. An electric machine comprising: a single frame including only one end bearing and supporting two stators;a shaft movable in rotation around an axis of rotation and extending through the frame via a first end plate disposed at one end of the frame and via a second end plate disposed at another end of the frame;two rotors disposed within the frame, each rotor being (i) interdependent with the shaft and (ii) corresponding to a respective one of the stators; anda single intermediate bearing supported by the frame and disposed between the rotors. 2. The electric machine of claim 1, wherein the one end bearing is adjacent to an end of the frame. 3. The electric machine of claim 1, wherein the intermediate bearing and the one end bearing each includes a corresponding casing. 4. The electric machine of claim 1, wherein the intermediate bearing and the one end bearing is one of a magnetic bearing, an oil bearing, a water bearing, a gas bearing and a roller bearing. 5. The electric machine of claim 1, further comprising a support disposed between the two rotors and attached to the interior of the frame, the support configured to support the intermediate bearing. 6. The electric machine of claim 1, wherein the intermediate bearing is configured to restrict deflection of the shaft between the two rotors. 7. The electric machine of claim 1, wherein the intermediate bearing is configured to restrict vibration of the shaft between the two rotors. 8. The electric machine of claim 1, wherein the intermediate bearing is attached to a support, the support being attached to the frame. 9. The electric machine of claim 1, wherein the shaft is supported by the one end bearing at a first end and by no bearing at a second end. 10. The electric machine of claim 1, wherein the one end bearing is a magnetic bearing and the intermediate bearing is an oil bearing. 11. The electric machine of claim 1, wherein the one end bearing is an oil bearing and the intermediate bearing is a magnetic bearing. 12. The electric machine of claim 1, wherein the one bearing and the intermediate bearing each has a distinct bearing type.