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. 27, 2006
Filed:
Mar. 26, 2004
Jeff H. Miller, Simi Valley, CA (US);
Xinhong J. Zheng, Valencia, CA (US);
Steven P. Grota, Thousand Oaks, CA (US);
Khin C. Phui, Pomona, CA (US);
Jeff H. Miller, Simi Valley, CA (US);
Xinhong J. Zheng, Valencia, CA (US);
Steven P. Grota, Thousand Oaks, CA (US);
Khin C. Phui, Pomona, CA (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
An improved rotor assembly shroud includes at least one reinforcing flange on the upper surface of the shroud. The strength provided by the reinforcing flange allows for a smaller shroud thickness resulting in a net reduction of shroud mass. The lower shroud mass reduces the centrifugal stress on the rotor assembly blade during operation. The strength provided by the reinforcing flanges also significantly reduces the centrifugal bending stress on the shroud during operation. The shroud mass may be further reduced by tapering the shroud leading and trailing edges or, for shrouds incorporating a damper, by providing a damper cavity with a lower diameter surface defining an opening therethrough.