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:
Nov. 29, 2011
Filed:
Jan. 23, 2007
Matthias Neef, Mülheim an der Ruhr, DE;
Norbert Sürken, Mülheim a.d. Ruhr, DE;
Karl Urlichs, Röthenbach, DE;
Matthias Neef, Mülheim an der Ruhr, DE;
Norbert Sürken, Mülheim a.d. Ruhr, DE;
Karl Urlichs, Röthenbach, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The invention relates to a multistage brush seal of a steam turbine that comprises several brushes which in turn comprise several bristles. A plurality of brushes are arranged next to each other and are configured different from each other with regard to the length of the bristles, or to the bristle thicknesses, or to the bristle rigidities, or to the lay angle of the bristles, or to the height of a first guard ring in front of or behind the brush seal in the flow direction, which delimits this brush seal, or to a gap between the bristles and an opposing surface.