Patent · US Expired

Synchronous machine, in particular generator for motor vehicle

US6013968A · kind A · utility

55Cited by

8References

25Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Juergen Lechner · Lambach, DE
Alexander Shendi · Asperg, DE
Sylvan Briand · Magor, GB

Key dates

Filing date	Jan 26, 1999
Grant date	Jan 11, 2000
Priority date	—
Expiry date	Jan 26, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH02K21/044
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A synchronous machine, in particular a generator for a motor vehicle, has an excitation system with a plurality of electrically excited individual poles in a rotor, preferably in form of claw poles which are excited by at least one common excitation coil, wherein for compensation of a magnetic stray flux, permanent magnets are inserted in free spaces between the axially oriented claw poles on the pole plates mounted on the axial ends of the rotors, and the permanent magnets are supported by a holder against centrifugal forces, so that the insertion of the permanent magnets is simplified and facilitated by a simple and inexpensive holder which reduces parts and mounting expenses.

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