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A device is presented having a multiplicity of motors connected to a shaft. A multiplicity of motor control devices are connected to the motors. A multiplicity of bearings are connected to the motors and the shaft. The multiplicity of motors, the multiplicity of motor control devices and the multipl

A device is presented having a multiplicity of motors connected to a shaft. A multiplicity of motor control devices are connected to the motors. A multiplicity of bearings are connected to the motors and the shaft. The multiplicity of motors, the multiplicity of motor control devices and the multiplicity of bearings continue to control the shaft rotation speed upon failure of either one of the multiplicity of motors, the multiplicity of motor control devices, or the multiplicity of bearings. Also presented is a device having at least one motor connected to a shaft. At least one bearing is connected to the at least one motor and the shaft. The at least one bearing has a multiplicity of rotating sleeves.

대표청구항 ▼

1. An apparatus comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors, anda first bearing set and a second bearing set each coupled to the motors and the s

1. An apparatus comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors, anda first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality of bearings arranged circularly, said first bearing set and said second bearing set sharing a common rotating sleeve disposed between said first bearing set and said second bearing set, said first bearing set coupled to another rotating sleeve, where said common rotating sleeve and said another rotating sleeve are coupled with a frangible link,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to control the shaft rotation speed upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings. 2. The apparatus of claim 1, further comprising:a bearing failure detection device coupled to the shaft. 3. The apparatus of claim 2, wherein the bearing failure detection device includes an optical emitter/receiver device, the optical emitter/receiver device transmits signals to a circuit, the transmitted signals include rotation information. 4. The apparatus of claim 3, wherein the rotation information includes information of rotational speed from one of the shaft, the plurality of bearings, and the shaft and the plurality of bearings. 5. The apparatus of claim 2, wherein the bearing failure detection device includes at least one strain gauge device, the strain gauge device transmits signals to a circuit, the transmitted signals include information on a failing bearing of the plurality of bearings. 6. The apparatus of claim 1, further comprising:a fan blade coupled to a hub and the shaft,a housing coupled to the plurality of motors, anda heat sink coupled to the housing. 7. The apparatus of claim 1, wherein the plurality of motors each rotate in one of a same direction and an opposite direction. 8. The apparatus of claim 1, further comprising one of a bushing, a bushing and a third bearing set, and a third bearing set. 9. The apparatus of claim 1, wherein the plurality of motors each having at least one pair of bifilar windings. 10. The apparatus of claim 9, wherein each of a plurality of single electrical pads are coupled to the at least one pair of bifilar windings an the plurality of motor control devices are each coupled to one of the plurality of single electrical pads. 11. The apparatus of claim 9, wherein each of a plurality of pairs of electrical pads are coupled to the at least one pair of bifilar windings, and at least two motor control devices of the plurality of motor control devices are coupled in parallel a single pair of the plurality of pairs of electrical pads. 12. A fan system comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality bearings arranged circularly, said first bearing set coupled to a first rotating sleeve, said second bearing set coupled to a second rotating sleeve where said first rotating sleeve and said second rotating sleeve are coupled with a frangible link,bearing a failure detection device coupled to the shaft,a fan blade coupled to a hub and the shaft,a housing coupled to the plurality of motors, anda heat sink coupled to the housing,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to rotate the fan blade upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings. 13. The fan system of claim 12, wherein the plurality of mot ors each rotate in one of a same direction and an opposite direction. 14. The fan system of claim 12, further comprising one of a bushing and a third bearing set, a bushing and a third bearing set, and a third bearing set. 15. The fan system of claim 12, wherein the bearing failure detection device includes an optical emitter/receiver device, the optical emitter/receiver device transmits signals to a circuit, the transmitted signals include rotation information. 16. The fan system of claim 12, wherein the plurality of motors each having at least one pair of bifilar windings. 17. An apparatus comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality of bearings arranged circularly, said first bearing set and said second bearing set sharing a common rotating sleeve disposed between said first bearing set and said second bearing set,a fan blade coupled to a hub and the shaft,a housing coupled to the plurality of motors,a heat sink coupled to the housing and to a multi-processor,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to control the shaft rotation speed upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings. 18. The apparatus of claim 17, further comprising:a bearing failure detection device coupled to the shaft. 19. The apparatus of claim 18, wherein the bearing failure detection device includes an optical emitter/receiver device, the optical emitter/receiver device transmits signals to a circuit, the transmitted signals include rotation information. 20. The apparatus of claim 18, wherein the bearing failure detection device includes at least one strain gauge device, the strain gauge device transmits signals to a circuit, the transmitted signals include information on a failing bearing of the plurality of bearings. 21. The apparatus of claim 17, wherein at least another sleeve is coupled to the plurality of bearings where the sleeves are coupled with a frangible link. 22. An apparatus comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a bearing failure detection device coupled to the shaft, anda first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality of bearings arranged circularly, said first bearing set and said second bearing set sharing a common rotating sleeve disposed between said first bearing set and said second bearing set,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to control the shaft rotation speed upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings, and wherein the bearing failure detection device includes an optical emitter/receiver device, the optical emitter/receiver device transmits signals to a circuit, the transmitted signals include rotation information. 23. The apparatus of claim 22, wherein at least another sleeve is coupled to the plurality of bearings where the sleeves are coupled with a frangible link. 24. The fan system of claim 22, wherein the plurality of motors each rotate in one of a same direction and an opposite direction. 25. A fan system comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a bearing failure detection device coupled to the shaft, anda first bearing set and a se cond bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality of bearings arranged circularly, said first bearing set and said second bearing set sharing a common rotating sleeve disposed between said first bearing set and said second bearing set,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to control the shaft rotation speed upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings, and wherein the bearing failure detection device includes at least one strain gauge device, the strain gauge device transmits signals to a circuit, the transmitted signals include information on a failing bearing of the plurality of bearings. 26. The apparatus of claim 25, wherein at least another sleeve is coupled to the plurality of bearings where the sleeves are coupled with a frangible link. 27. The fan system of claim 25, wherein the plurality of motors each rotate in one of a same direction and an opposite direction. 28. A fan system comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality bearings arranged circularly, said first bearing set coupled to a first rotating sleeve,a bearing failure detection device coupled to the shaft, the bearing failure detection device includes an optical emitter/receiver device, the optical emitter/receiver device transmits signals to a circuit, the transmitted signals include rotation information,a fan blade coupled to a hub and the shaft,a housing coupled to the plurality of motors, anda heat sink coupled to the housing,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to rotate the fan blade upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings. 29. The fan system of claim 28, said second bearing set couple to a second rotating sleeve, where said first rotating sleeve and said second rotating sleeve are coupled with a frangible link. 30. The fan system of claim 28, wherein the plurality of motor each having at least one pair of bifilar windings. 31. A fan system comprising:a plurality of motors coupled to a single drive shaft disposed through a center portion of said plurality of motors,a plurality of motor control devices coupled to the plurality of motors,a first bearing set and a second bearing set each coupled to the motors and the shaft, each of the plurality of bearing sets including a plurality bearings arranged circularly, said first bearing set coupled to a first rotating sleeve,a bearing failure detection device coupled to the shaft, the bearing failure detection device includes at least one strain gauge device, the strain gauge device transmits signals to a circuit, the transmitted signals include information on a failing bearing of the plurality of bearings,a fan blade coupled to a hub and the shaft,a housing coupled to the plurality of motors, anda heat sink coupled to the housing,wherein the plurality of motors, the plurality of motor control devices and the plurality of bearings continue to rotate the fan blade upon failure of one of the plurality of motors, the plurality of motor control devices, and the plurality of bearings. 32. The fan system of claim 31, said second bearing set coupled to a second rotating sleeve, where said first rotating sleeve and said second rotating sleeve are coupled with a frangible link. 33. The fan system of claim 31, wherein the plurality of motors each having at least one pair of bifilar windings.