Patent · US Active

Electrical drive machine having a stator and a rotor

US8513827B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Faber · Schweich, DE
Michael Bayer · South Euclid, US
Sven Hartmann · Stuttgart, DE
Dirk Buehler · Laufenburg (Baden), DE

Key dates

Filing date	Nov 27, 2008
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Jun 11, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02K23/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric drive machine having a stator and a rotor, the rotor carrying a rotor winding, in slots, which is able to be supplied with electric current by a power supply system made up of a commutator and sliding contacts, the sliding contacts pressing on the surface of the commutator having at least two pairs each made up of one positive sliding contact and one negative sliding contact, and in the case of at least one first pair of a positive sliding contact and a negative sliding contact, the positive sliding contact and the negative sliding contact being opposed at an angle γ, which deviates from 180°.

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