Patent · US Expired

Motor with axially displaceable rotor

US4877987A · kind A · utility

17Cited by

6References

24Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Heinz Flaig · Bochum, DE
Udo Neumann · Leonberg, DE
Heinz Hasselmann · Hagen, DE
Karl Zacharias · Schwerte, DE
Rainer Horbach · Witten, DE
Harald Bitsch · Witten, DE

Key dates

Filing date	Dec 23, 1986
Grant date	Oct 31, 1989
Priority date	—
Expiry date	Dec 23, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH02K7/125
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The rotor is held on a shaft by means of a membrane providing an easy resilient deflection in axial direction and being stiff for torque transmission in azimuthal direction. The membrane is star-shaped, or has spiral arms or is of polygonal configuration. A membrane carrier is connected to a central part of the membrane or to polygon corner points; the rotor, through a sleeve extension of a short circuiting ring is connected to peripheral points of the membrane. The carrier is splined to or slip friction coupled to the shaft.

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