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. 30, 2019
Filed:
Jul. 25, 2016
United Technologies Corporation, Farmington, CT (US);
Daniel Bernard Kupratis, Wallingford, CT (US);
Arthur W. Utay, South Windsor, CT (US);
Tania Bhatia Kashyap, West Hartford, CT (US);
Thomas N. Slavens, Moodus, CT (US);
Kevin L. Rugg, Fairfield, CT (US);
Mark F. Zelesky, Bolton, CT (US);
Brian D. Merry, Andover, CT (US);
Gabriel L. Suciu, Glastonbury, CT (US);
United Technologies Corporation, Farmington, CT (US);
Abstract
An auxiliary power unit may comprise a twin centrifugal compressor including a first blade. A turbine may be disposed aft of the twin centrifugal compressor. The turbine may include a second blade. The first blade comprises a first material and the second blade comprises a second material. The first material may the same as the second material. The twin centrifugal compressor may include forward centrifugal compressor and an aft centrifugal compressor disposed aft of the forward centrifugal compressor.