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. 18, 2020
Filed:
Apr. 19, 2018
Siemens Energy, Inc., Orlando, FL (US);
Andrew Adam, Saint Charles, MO (US);
Mark Roberts, Wentzville, MO (US);
Grant Hennessey, Tega Cay, SC (US);
Alan Fortner, Mint Hill, NC (US);
Brent Mazingo, Charlotte, NC (US);
Randy Edward Whitener, Oviedo, FL (US);
Michael D. Garmon, Orlando, FL (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
An assembly and a method for preventing an axial migration of a spring in a generator rotor are presented. The assembly includes a step pin radially disposed through an amortisseur and inserted into a spring of the generator rotor. The step pin is arranged axially apart from an adjacent radial vent passage and radially extends through the spring into a slot clearance between the spring and a creepage. The amortisseur includes a counter bore to retain a pin head and a pin shoulder. The spring includes a pin hole for a pin body extending therethrough. Diameters of the counter bore and the pin hole are smaller than diameters of amortisseur radial vent aperture and spring radial vent aperture. The step pin prevents an axial migration of the spring in rotor slots.