Patent · US Expired

Excitation arrangement for a long stator drive

US4636667A · kind A · utility

26Cited by
4References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 31, 1985
Grant dateJan 13, 1987
Priority date
Expiry dateJan 31, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K7/09
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An excitation arrangement for a long stator drive for rapid transit systems has combined generation of propulsive and portative forces. The arrangement comprises at least one heteropolar magnet which has a plurality of channels extending at right angles relative to the direction of the long stator, the channels being open at their pole plane lying opposite the long stator and magnetic coils are located in the channel. The channels have a rectangular cross section extending up to the pole plane and the conductors of the magnetic coils are wound in tight contact with one another and with the channel walls on the side of the poles. The magnet comprises at least one recess extending parallel to the channels beneath the pole plane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.