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 Expert  108403

Expert in Motor and Generator Design and Development

Available for your Consulting and Expert Witness Needs

Minnesota (MN)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
COMPUTER-AIDED DIRECT CURRENT (DC) MOTOR DESIGN; DC MOTOR DEVELOPMENT; FERRITE MOTOR. The most significant portion of Expert's work for the past 5 years has involved computer-aided design and product development of a variety of permanent magnet (PM) brushless DC motor/controller packages ranging from very small FH.P. motors to 6.0 H.P. motors. Expert uses AutoCAD and his own design software to develop these, mostly high efficiency, neodymium and ferrite designs. Expert is also expert at the computer design and development of standard brush-type DC commutator motors. These motor designs range from FH.P. to 6.0 H.P., and include one 9.0 H.P. high performance design. He has designed several switched-reluctance motors using special computer modeling software, specifically very small FHP low-cost designs.

COMPUTER-AIDED ALTERNATING CURRENT (AC) GENERATOR DESIGN; SYNCHRONOUS GENERATORS. Expert has worked on computer-aided design of brushless synchronous generators for the past 20 years. The AC generators he designs are of both low and high voltage, low and high R.P.M. (60 and 400 Hz), and range from 1KW to 5000KW.

COMPUTER-AIDED SYNCHRONOUS AND INDUCTION MOTOR DESIGN; THREE-PHASE INDUCTION MOTOR. Expert has also been very involved in the computer design of both synchronous and induction motors, ranging from FH.P. to 1000 H.P. In the case of induction motors, his work has included both 3-phase and 1-phase designs. The 1-phase induction designs have been split-phase resistance and capacitor start types.

ELECTRIC MOTOR PRODUCT DESIGN AND DEVELOPMENT; ELECTRIC MOTOR PROTOTYPING. Expert has made a specialty of contracting with companies, such as Rockwell International, Ford Motor Company, General Electric, Williams International, and Maxtor Corporation, for complete design, development, and prototype building using a small, but highly experienced network of venders, including electronic designers, machine shops, and laser cutting shops.

SWITCHED RELUCTANCE ELECTRIC MOTOR. Expert has acquired significant software for computer designing switched reluctance motors. He has successfully designed, built, and tested several small FHP switched reluctance motors.

Expert has enlarged his specialty area to include turnkey design and development of systems incorporating robotics, actuators, and motor-driven actuators. His experience in the design and development of a wide variety of brushless DC motors integrates well with this broader effort.


alternating-current generator


alternating-current generator design


alternating-current synchronous generator


brush motor


brushless direct-current motor


computer-aided alternating-current generator


computer-aided direct-current motor design


computer-aided electric motor design


computer-aided inductor motor design


computer-aided synchronous motor design


direct-current motor


direct-current motor design


direct-current motor development


electric generator


electric motor


electric motor development


electric motor prototyping


ferrite permanent-magnet motor


miniature direct-current motor


rotating generator


synchronous generator


synchronous motor


three-phase induction motor


alternating-current motor


electric motor design


fractional horsepower motor


diesel standby generator

Expert utilizes AutoCAD in all of his electric machine design drawings and usually supply copies to his clients by attaching to e-mail or by sending copies on disk. He has also utilized both commercially available design modeling software and computer design software that he has written and utilized over the years.

computer-aided electric machine design

Expert has spent considerable time and effort in the last five years designing and developing a highly unique disk drive motor with patent pending intended for use on the next generations of high density, high speed disk drives.

disk drive motor

Recently, Expert has undertaken to design, develop, and prototype larger machines of a robotic nature that incorporate electric motor actuation or other electric control and input. The most recent was a large robotic machine for the U.S. Post Office to be used to apply cardboard sleeves over trays of letter mail.

electrical product development

This category relates to work that Expert has done with the design and development of very high speed brushless DC motors up to 50,000 RPM and up to 5.0 HP. One of the applications was a very high speed electrically-driven air conditioning compressor to operate in automobiles which also incorporated refrigeranat cooling of the motor itself.

high-speed motor

Many of the smaller generators that Expert has designed and developed recently utilize permanent magnets of various types and grades as the source of the magnetic field. Some of the designs have been for military engine-driven generators, and some have been for hybrid alternators using both magnet produced field and wound field components. Currently, he is working on a PM generator concept that will be regulatable by means of very low power with very small conventional regulators, in contrast to using series electronic voltage regulation.

permanent-magnet generator


generator design

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Minneapolis, Minnesota;  Saint Paul, Minnesota;  Rochester, Minnesota;  Burnsville, Minnesota;  Saint Cloud, Minnesota;  Eden Prairie, Minnesota;  and Minnetonka, Minnesota.

Often requested
with this expert:

Electric Motors, Generators, Wind Energy, Voltage...
Brushless DC Motors
AC Motor Drives, Electric Machinery, Power Electronics for...
Power Electronics and Renewable Energy Systems

Year   Degree   Subject   Institution  
1961   B.S.   Electrical Engineering   University of Minnesota  

Work History:
Years   Employer   Department   Title  

1974 to


(Undisclosed Consulting Company)





1972 to 1974


ADC Products


New Product Development




1969 to 1972


Minnesota Electric



President and Chief Engineer


1966 to 1969


Kato Engineering (Reliance) Technology






Career Accomplishments:

Expert is a registered electrical engineer in the state of Minnesota.


He has received several awards for conducting seminars.

Publications and Patents Summary

Expert has authored a book on wind power, and has 25 patents.

Consulting Services:
Recent Client Requests:
  • Expert for consulting on PMG Brushless genarator for small scale wind turbine.
  • Expert for consulting on vibrating motor.
  • Electrical motor expert for consulting on Motor Problem.
  • Induction motor expert for evaluation of special AC induction motor design.
  • Expert needed for consulting on reciprocating generators.
  • Rotating electrical machinery expert for consulting on design of high temperature and high pressure generator for oil and gas industry.
  • Expert in bearing design services for consulting on motor bearing design for permenant magnet generator.
  • Expert in AC motor failure forensics to write report with conculsions on why motor failed.
  • Expert in 3000 HP DC motors for consulting on suggestions and improvements to increase the reliability.
  • Expert for consulting on Need some advice...
  • Expert in 68KW DC motor to assist with troubleshooting and assembly.
  • Electrical generator expert for consulting on 12kW low speed generators.
  • Expert for consulting on Assessment of Electrical Insulation materials.
  • Motor expert for consulting on gear motor .
  • Expert in Rooftop Generation of Power.
  • Expert in generator designs for consulting on generator design for wind mills.
  • Expert in designing brushless pm generators for consulting on renewable ocean energy.
  • Expert in electric motor for consulting on switched reluctance motor design.
  • Expert in brushless DC motors.
  • Expert in custom designed high output DC generators for consulting on high speed, high output DC or AC generators.
  • Induction generator design expert for consulting on Induction generator design.
  • Expert in permanent magnet generators for consulting on efficiency and longevity for wind industry.
  • Alternator expert for consulting on a low cost ($30ea. high quantity) 24v 25-30amp.
  • Expert in aerospace engineering for consulting on airline generator repair.
  • AC generator expert for consulting on a small grid connect machine we are developing.
  • Ac motor expert for consulting on Help determine if motor chosen will work in current application.
  • Expert for consulting on DC Motors.
  • Expert for consulting on Permanent magnet alternator design.
  • Expert in Induction Motors (1-500 HP) for energy conservation standards.
  • Expert in Nola technology.
  • Permanent magnet generator expert for consulting on renewable imagery firm designing a underwater generator.
  • Technical power expert for consulting on writing about the principles of power conversion.
  • Expert in brushless DC motors for consulting on hydraulic drive unit suppliers.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Expert in robotics for consulting on explosion-proof requirements for a robot used in an hazardous/explosive environment.
  • Expert in automotive electronics for shut off switch litigation.
  • Expert for consulting on amall electric chainsaw motor failure.
  • Electrical engineering and wind turbine expert for consulting on wind turbine crash case.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Foreign Language  

Additional Skills and Services:
Supplier and Vendor Location and Selection

Expert has experience locating vendors of brushless PM DC motor/controller systems, small FH.P. 1-phase high efficiency brushless fan motors, PM 1-phase and 3-phase alternators. He has access to personal contacts and printed materials.


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