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
Tool selection and implementation of port adapters
Bitmap compare mechanism
Fuse chambers on a substrate
Performing scenario reduction using a dominance relation on a set of corners
Method and apparatus for developing process
  Randomly Featured Patents
Light sensitive co-condensates
Interfaces between enterprise customers and suppliers
Clamp system used for television signal
Water jet/abrasive jet cutting head
Secondary high explosive booster, and method of making and method of using same
Methods and compositions for modifying plant biosynthetic pathways
Powdered metals extracted from acid mine drainage and their use in the manufacture of pressed metal articles
Combined pen and toy
Device for uncurling thermal sensitive recording paper
Fluorescent valve jet ink