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:
Jul. 01, 1980
Filed:
May. 18, 1978
Erich Weghaupt, Mulheim, DE;
Gerhard Krieger, Mulheim, DE;
Kraftwerk Union Aktiengesellschaft, Mulheim, DE;
Abstract
A water-cooled turbogenerator rotor mounted on a rotor shaft and having water-cooled end turn leads surrounded by a rotor end-bell and further having radial current-contact pins contacting ends of exciter current lines disposed in the rotor shaft, the pin being cooled by cooling water fed thereto through high-pressure insulating hoses from cooling-water distribution chambers provided on the rotor shaft, the pins being connectible at radially outer ends thereof to the water-cooled end turn leads disposed in slots formed on the rotor shaft and to the high-pressure insulating hoses, a device for cooling and electrically connecting the exciter current lines includes respective widened contact straps formed at respective ends of the end turn leads extending out from the rotor end bell and at the respective radially outer ends of the current-contact pins, the widened contact straps of the end turn leads and the current-contact pins being received in a slot formed in the surface of the rotor shaft and being in mutually abutting relationship, and a connecting strap overlying the widened contact straps and electrically, hydraulically and mechanically connecting the widened contact straps, the connecting straps being formed with cooling-water channels and means for connecting the cooling-water channels to the high-pressure insulating hoses.