Back to results
US 4,786,833 AGranted
Casing for air cooled electric machines
AssigneeZschokke Wartmann AG
InventorRobert Knobel
Life of this patent
Estimating the term…
Abstract
The casing of an electric machine has ribs welded onto a casing jacket, the ribs displaying a U-shaped profile. The legs of the ribs can be secured by resistance projection welding to the casing jacket. One rib can be somewhat larger than the other ribs and used as a support for a foot.
Claims9
A device for an air cooled electrical machine, said device comprising:
- an elongated cylindrical metal casing jacket having an axis extending in the direction of elongation, said jacket having oppositely directed outer and inner cylindrical surfaces;
- a plurality of spaced apart elongated metal cooling ribs disposed along the outer surface of the jacket, all of said ribs extending in the axial direction, each rib having two spaced apart legs having outer and inner edges, the outer edges of the two legs being connected by a straight web extending therebetween and outwardly displaced from the jacket, the inner edges of the legs being secured to the jacket, each rib in transverse cross section having a generally trapezoidal shape defined by the web and the separation between the legs being a maximum at the web and a minimum at the inner edges, two spaced apart ribs being bases;
- and
- two spaced apart feet, each foot being adjustably connected to a corresponding one of the base ribs.
1 more element
Dependencies are inferred from the claim text.