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. 20, 2017
Filed:
Apr. 17, 2014
Applicant:
Alstom Technology Ltd, Baden, CH;
Inventors:
Assignee:
ANSALDO ENERGIA SWITZERLAND AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 15/12 (2006.01); F01D 25/36 (2006.01);
U.S. Cl.
CPC ...
F01D 25/36 (2013.01); Y10T 74/18056 (2015.01);
Abstract
A device for positioning the rotor of a gas turbine by linearly actuating a piston rod that actuates on its end a ratched wheel that moves the rotor of the gas turbine. The device includes an eccentric wheel and a synchronous motor. The piston rod is moved through the eccentric wheel, which is connected to the synchronous motor. The device also includes an incremental counter controlling the angular position of the synchronous motor. The device can permit accurate positioning of the rotor for boroscopic inspection.