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. 25, 2011
Filed:
Mar. 28, 2008
Thomas Heinz-schwarzmaier, Birmenstorf, CH;
Sven Olmes, Villigen, CH;
Ronald Wifling, Waldshut-Tiengen, DE;
Thomas Heinz-Schwarzmaier, Birmenstorf, CH;
Sven Olmes, Villigen, CH;
Ronald Wifling, Waldshut-Tiengen, DE;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A gap seal () radially seals a gap () which extends axially and radially between two blades () of a turbomachine which are adjacent in the circumferential direction (). The two blades () have, in each case, an axially extending longitudinal slot (), which is open towards the gap (), on its respective blade root (). A band-form or strip-form sealing element () engages with its longitudinal sides () in the two longitudinal slots () and bridges the gap (). The one blade () has a projection () on its blade root (), which projects from the blade root () in the circumferential direction () and extends in the circumferential direction () and radially, at least in the region of the respective longitudinal slot (), and bridges an axial longitudinal end of the gap () in the process. The other blade () has a step-shaped recess () on its blade root (), complementary to the projection () of the one blade () and in which the projection engages. The projection () has a transverse slot () which extends in the circumferential direction () and is open towards the gap (). The sealing element () engages with an end face () in the transverse slot ().