Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-04-30
1995-07-18
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 92, 310263, H02K 106, H02K 4900
Patent
active
054344611
ABSTRACT:
A drive has a hub with first and second end portions and a shoulder located thereon. An armature and sheave assembly is located on bearings on the hub first end portion. The armature forms a cavity for receiving an electromagnet, which abuts against the shoulder. Slip rings are coupled to the electromagnet by way of a fan and a slip ring shaft. The slip rings, which are adjacent to the second end of the hub, can be of a small diameter to extend brush life. In addition, the same size slip rings can be used on different sizes of the drive. Two piece brush holders are provided for each brush. Each brush holder can be disassembled into its respective pieces for cleaning. The brush holders and slip rings can be protected from the environment by a cover. In another embodiment, a brushless drive has a coil mounted to bearings by way of a coil mount. The bearings are located on a hub. The coil mount is anchored to a fixed object. The pole pieces are coupled together by a nonmagnetic material to form a cavity that receives the coil.
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ABC Of Adjustable Speed with Ampli-speed Magnetic Drive, E-M Synchronizer, Special Issue 200-SYN-64, Electric Machinery Mfg., pp. 1,6 7, last page.
EM Ampli-Speed Magnetic Drive Horizontal and Vertical, McGraw-Edison, Electric Machinery brochure 5100-PRD-312A, Sep. 1981.
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EM-Ampli-Speed Magnetic Drive Vertical, Dresser-Rand, Electric Machinery brochure 5200-PRD-313A, Sep. 1981.
Haszko D. R.
Mantooth Geoffrey A.
Stephan Steven L.
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