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.

Date of Patent:
Apr. 28, 2026

Filed:

Jun. 23, 2025
Applicant:

Arianegroup Gmbh, Taufkirchen, DE;

Inventors:

Louis Souverein, Riemerling, DE;

Alessandro Cappiello, BB Delft, NL;

Matteo Pini, AR Delft, NL;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/444 (2013.01);
Abstract

A guide vane arrangement for use in a turbopump having a first guide vane and a second guide vane. The second guide vane is arranged adjacent to the first guide vane such that a flow channel is defined between a leading surface of the first guide vane and a trailing surface of the second guide vane. The trailing surface of the second guide vane has a trailing portion arranged adjacent to a trailing edge of the second guide vane and which is arranged at a first angle with respect to a trailing edge of the first guide vane and the trailing edge of the second guide vane, a leading portion which is arranged adjacent to a leading edge of the second guide vane and which is arranged at a second angle with respect to the trailing edge of the first guide vane and the trailing edge of the second guide vane, and an intermediate portion arranged between the trailing portion and the leading portion and which is arranged at a third angle. The second angle is larger than each of the first and third angles.


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