Homopolar motor with dual rotors

Title: Homopolar motor with dual rotors

Full Record
Other Related Research

Abstract

A homopolar motor (10) has a field rotor (15) mounted on a frame (11) for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor (17) mounted for rotation on said frame (11) within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor (15). The two rotors (15, 17) are coupled through a 1:1 gearing mechanism (19), so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed.

Inventors:

Hsu, John S ^[1]

Oak Ridge, TN

Issue Date:: 1998-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 872013

Patent Number(s):: 5844345

Assignee:: Lockheed Martin Energy Research Corporation (Oak Ridge, TN)

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES

Show more

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K16/005 - {Machines with only rotors, e.g. counter-rotating rotors
H02K31/02 - with solid-contact collectors

Show less

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: homopolar; motor; dual; rotors; 10; field; rotor; 15; mounted; frame; 11; rotation; rotational; direction; producing; electromagnetic; armature; 17; counter; coupled; gearing; mechanism; 19; travel; speed; opposite; directions; doubles; output; voltage; power; compared; rotated; embodiments; disclosed; rotational direction; opposite direction; output voltage; opposite directions; electromagnetic field; magnetic field; output power; homopolar motor; /310/

Citation Formats


                    Hsu, John S. Homopolar motor with dual rotors.  United States: N. p., 1998. 
        Web.

Copy to clipboard


                    Hsu, John S. Homopolar motor with dual rotors.  United States.

Copy to clipboard


                    Hsu, John S. Thu .  
        "Homopolar motor with dual rotors".  United States.  https://www.osti.gov/servlets/purl/872013.

Copy to clipboard


                    
@article{osti_872013,

  title        = {Homopolar motor with dual rotors},

  author       = {Hsu, John S},

  abstractNote = {A homopolar motor (10) has a field rotor (15) mounted on a frame (11) for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor (17) mounted for rotation on said frame (11) within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor (15). The two rotors (15, 17) are coupled through a 1:1 gearing mechanism (19), so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Homopolar motor with dual rotors

Patent Hsu, J S

A homopolar motor has a field rotor mounted on a frame for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor mounted for rotation on said frame within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor. The two rotors are coupled through a 1:1 gearing mechanism, so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed.more » 7 figs.« less
Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

Patent Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operationmore »« less
Full Text Available
Method using a electrostatic generator/motor rotor electrode system suitable for installation on the outer surface of an EMB rotor

Patent Post, Richard F.; Hagler, Lisle B.

Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
Full Text Available
Electrostatic generator/motor rotor electrode system suitable for installation on the outer surface of an EMB rotor

Patent Post, Richard F.; Hagler, Lisle B.

Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
Full Text Available
Electrostatic generator/motor electrodes located on the inner surface of an electromechanical battery rotor

Patent Post, Richard F.

A geometric design of E-S generator/motor electrodes mounted on the inner surface of a fiber-composite rotor is provided. The electrode configuration is able to sustain very high g levels. The rotor may be formed of carbon-fiber wound on top of an inner E or S-glass fiber composite core. The electrode design provides the needed area to satisfy the power requirements of the storage system and utilizes a stacked wedge-like electrode array that both solves the high-g problem and results in a doubling or tripling of the electrode area, relative to that of electrodes that conform to the inner cylindrical surfacemore » of the rotor.« less
Full Text Available

Similar Records