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:
Jun. 21, 2022
Filed:
Nov. 17, 2017
Vestas Wind Systems A/s, Aarhus N., DK;
Christian Bager, Herne, DE;
Noel Yambeh Yambaha, Berlin, DE;
Vestas Wind Systems A/S, Aarhus N, DK;
Abstract
The present invention relates to an insulated shaft joint () for electrically insulating a rotational member () from an end section of a shaft () to which the rotational member () is connected. The insulated shaft joint () comprises a plurality of first grooves () arranged in an outer surface of the end section of the shaft () and extending in an axial direction of the shaft (), one or more rows of electrically insulating members (), and an annular electrically insulating cage () arranged circumferentially around the plurality of first grooves (). The insulating cage () comprises one or more rows of through-going openings (), arranged circumferentially. The through-going openings () is being shaped and dimensioned so that they are adapted to surround and guide the insulating members (). The rotational member () is arranged circumferentially around the annular electrically insulating cage (). The rotational member () comprises a plurality of second grooves () arranged in an inner surface of the rotational member () and extending in an axial direction of shaft (). The through-going openings () in the insulating cage () are arranged aligned with the plurality of first grooves () and the plurality of second grooves (). The insulating members () are arranged in the through-going openings () of the insulating cage () and in the first and second grooves, so as to be adapted to transfer torque from the shaft to the rotational member () via the insulating members ().