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. 17, 2004
Filed:
Nov. 25, 2002
Wei Tong, Clifton Park, NY (US);
Zhang Qing Zhuo, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A ventilation pathway for a cooling gas to flow extends on a radial axis in a generator stator core. The ventilation pathway comprises at least two magnetic laminations and a plurality of space blocks extending radially in the generator stator core. The space blocks are fastened and disposed between the magnetic laminations. At least one of the space blocks includes a wavy longitudinal profile that includes an alternating pattern of peaks and valleys with respect to the radial axis of the generator stator core. Alternatively, at least one of the space blocks has a plurality of protrusions defining a pattern of peaks and valleys extending from a sidewall of the space block. Several different shapes of vortex generators are punched in the lamination are located within the ventilation pathway.