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:
Apr. 18, 2023
Filed:
Jul. 20, 2022
Applicant:
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Inventors:
Assignee:
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F04D 29/30 (2006.01);
U.S. Cl.
CPC ...
F04D 29/283 (2013.01); F04D 29/30 (2013.01);
Abstract
A centrifugal or diagonal impeller has impeller blades () that are curved in the circumferential direction about an axis of rotation and are formed from a single-layer sheet metal. Each blade () has a suction side () and a pressure side () as well as a blade leading edge () and a blade trailing edge (). At least the blade leading edge () of the impeller blades () adjacent to their suction side () have a geometric edge modification in the form of a rounding () over a predetermined partial length of a blade thickness (SD) of the impeller blades ().