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.

Date of Patent:
Mar. 11, 2014

Filed:

Jun. 28, 2011
Applicant:

Peter D. Silkowski, Middletown, CT (US);

Inventor:

Peter D. Silkowski, Middletown, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/057 (2006.01); F02C 9/00 (2006.01); F02G 3/00 (2006.01); F23R 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A turbomachine comprises a flow duct with coaxially arranged radially inner and outer endwalls, first and second sets of axially spaced rotor stages arranged between the inner and outer endwalls, and a plurality of variable endwall segments arranged along the inner endwall. The first set of rotor stages rotates in a first direction, and the second set rotates in a second direction. The first and second sets alternate in axial series along the flow duct, such that axially adjacent rotor stages rotate in different directions. The variable endwall segments are radially positionable, in order to regulate loading on the first and second sets of rotor stages by changing a cross-sectional flow area between the inner and outer endwalls.


Find Patent Forward Citations

Silkowski, Peter. (2014). Counter-rotating turbomachinery (U.S. Patent No. 8667773). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8667773

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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