Resources Contact Us Home
Engine starting and charging device

Image Number 2 for United States Patent #4894553.

A field coil is divided into the plural number, and each of these field coils is connected in parallel in relation to a battery at the time of engine starting, and in series during the generation of the electric current after engine starting, so that sufficient field electromotive force can be maintained in the event of a battery voltage drop during engine starting, and also a necessary, sufficient field electromotive force can be produced with little current at the time of voltage recovery during generator operation. Consequently, the amount of copper to be used for the field coils and a winding space can be decreased; therefore the present invention is effective to provide a light-weight, small and unexpensive engine starting and charging device.

  Recently Added Patents
Illumination unit for a direct-view display
Process for production of nickel oxide-stabilized zirconia composite oxide
Wiring structure in a semiconductor device, method of forming the wiring structure, semiconductor device including the wiring structure and method of manufacturing the semiconductor device
Client-managed group communication sessions within a wireless communications system
ASICs having programmable bypass of design faults
Method to quantify siRNAs, miRNAs and polymorphic miRNAs
  Randomly Featured Patents
Water containment block
Catalytic conversion of formamides to isocyanates
Duty cycle controller for power factor correction circuit
Dispensing apparatus for plastic bags
Pickup tent cover and tent apparatus
Managing structure for umbilical member of industrial robot
Message insert for a trailer hitch receiver
Slip-controlled brake system for automotive vehicles
Slide segment with integral ball bearing mount
Expanded implantation of contact holes