Patent · US Expired

Eddy current speed reducers

US4309633A · kind A · utility

5Cited by
6References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 19, 1979
Grant dateJan 5, 1982
Priority date
Expiry dateOct 19, 1999

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K5/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

It is an eddy current speed reducer whose stator comprises a ring of coils 2 having their axes parallel to the axes of the speed reducer and whose rotor comprises two discs 3 framing the stator. The support for the coils is formed by a non-magnetic closed annular housing 9 containing the windings 6 of these coils and formed from two half-shells clamped axially one against the other by screwing flared pole pieces 7 on the cores 5 of the coils, these cores passing jointingly through openings 11 in the housing. A preferred application is to speed reducers developing relatively low braking torques.

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