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. 20, 2018
Filed:
Dec. 16, 2014
Thomas Mokulys, Wuerenlingen, CH;
Sebastiano Mauri, Zurich, CH;
Marcel Bühler, Urdorf, CH;
Damian Schärz, Berikon, CH;
Christian Rufer, Elgg, CH;
Thomas Mokulys, Wuerenlingen, CH;
Sebastiano Mauri, Zurich, CH;
Marcel Bühler, Urdorf, CH;
Damian Schärz, Berikon, CH;
Christian Rufer, Elgg, CH;
MAN Energy Solutions SE, Augsburg, DE;
Abstract
In a radial compressor stage for a radial compressor having a rotor side, the radial compressor stage includes a stator; and an impeller configured to rotate relative to the stator. The impeller has multiple impeller blades on the rotor side. Each of the multiple impeller blades has: a flow inlet edge, a flow outlet edge, a suction side extending between the flow inlet edge and the flow outlet edge, a pressure side, and an outer surface facing the stator. At least one groove is arranged in the outer surface of at least one of the multiple impeller blades, the at least one groove being bounded by a longitudinal web both on the suction side and on the pressure side. Each of the longitudinal webs forms a sealing tip of the respective impeller blade towards the stator.