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:
Oct. 27, 2015
Filed:
May. 24, 2012
Jaroslaw Leszek Szwedowicz, Bad Zurzach, CH;
Alexey Mozharov, Nussbaumen, CH;
Stefan Irmisch, Oberrohrdorf, CH;
Jaroslaw Leszek Szwedowicz, Bad Zurzach, CH;
Alexey Mozharov, Nussbaumen, CH;
Stefan Irmisch, Oberrohrdorf, CH;
ALSTOM TECHNOLOGY LTD, Baden, CH;
Abstract
A turbomachine which operates at enhanced operating temperatures includes a stationary component. A rotating component includes a clearance to avoid a rubbing contact between the stationary component and the rotating component, the clearance including a first value in a stationary state of the turbomachine and a second value in a steady-state operation of the machine, wherein during a transient operating phase between the stationary state and the steady-state operation, the clearance includes a value which traverses a curve having an extreme value on account of a different time variation of a rotational speed and a thermal expansion of different components. A compensating device includes a non-linear compensation mechanism configured to reduce or compensate the extreme value during the transient operating phase.