The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 1995
Filed:
Jul. 07, 1993
Applicant:
Inventor:
Antero Arkkio, Espoo, FI;
Assignee:
High Speed Tech Oy Ltd., Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310166 ; 310 45 ; 310180 ; 310261 ; 310262 ;
Abstract
The invention relates to an asynchronous electric machine, wherein a rotor rotating relative to a stator is provided with an electrically conductible coating. An air gap (.delta.) between the rotor and the stator is designed according to the following formula ##EQU1## in which D.sub.r =outer rotor diameter (mm),