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:
Dec. 06, 2022
Filed:
Nov. 15, 2019
Applicant:
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Inventors:
Markus Engert, Lauda-Königshofen, DE;
Angelika Klostermann, Gaisbach, DE;
Daniel Conrad, Langenbrettach, DE;
Assignee:
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/44 (2006.01); F04D 17/12 (2006.01); F04D 29/30 (2006.01);
U.S. Cl.
CPC ...
F04D 29/444 (2013.01); F04D 17/122 (2013.01); F04D 29/30 (2013.01);
Abstract
A return geometry fluidically connects a first and a second compressor stage of the turbocompressor. The return geometry has multiple partial helices that are evenly or unevenly distributed in the circumferential direction. The multiple partial helices extend at least in part in the circumferential direction. They form flow channels that extend at least in some sections, separately from each other, to fluidically connect the first and second compressor stages.