Patent · US Active

Electric power tool with an electric motor

US8698362B2 · kind B2 · utility

3Cited by

14References

28Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Florian Esenwein · Echterdingen, DE
Peter Wassermann · Weil der Stadt, DE

Key dates

Filing date	Oct 10, 2008
Grant date	Apr 15, 2014
Priority date	—
Expiry date	Oct 1, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B23/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an electric machine tool, particularly an angle grinder, having an electric motor that can be forcibly cooled by a cooling air flow. The electric motor includes an armature and a field iron package disposed concentrically to the armature which are disposed in a cooling air flow. The invention proposes that the armature and the field iron package be disposed in series in the cooling air flow.

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