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:
Aug. 27, 2019
Filed:
Jun. 23, 2017
Siemens Energy, Inc., Orlando, FL (US);
Michael D. Garmon, Orlando, FL (US);
Raul Ricardo Rico, Oviedo, FL (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
A system for cooling windings of generator rotor is presented. The system includes a cooling passage including inlet and outlet radial bores radially extending into rotor shaft extension, inlet and outlet axial bores axially extending within rotor shaft extension, first and second radial bores radially extending from cavities under two retaining rings into rotor shaft extension, and an axial passage through windings from cavity under retaining ring at turbine end side to cavity under retaining ring at excitation end side. A coolant flows through the cooling passage and directly cools windings by traveling through entire windings. The system uses non-explosive fluid as coolant eliminating using hydrogen as coolant and provides sufficient direct cooling of windings of a high power density generator rotor without extensive piping.