Patent · US Expired

Electric machine

US6841901B2 · kind B2 · utility

2Cited by
8References
23Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 14, 2002
Grant dateJan 11, 2005
Priority date
Expiry dateFeb 14, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K9/06
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In the case of an electrical machine, in particular an alternator for a motor vehicle, having a housing (2), a rotor (6) that is supported in the housing (2) in a manner that allows it to rotate around an axis of rotation (5) and that has at least one rotor winding (14) and at least one fan wheel (21) mounted on the rotor (6) for generating convection in the housing (2) and for dissipating heat from the at least one rotor winding (14), the at least one fan wheel (21) is joined with the rotor (6) at least in a linear manner in order to better cool the rotor (6).

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