Patent · US Active

Thrust producing unit with at least two rotor assemblies and a shrouding

US11220325B2 · kind B2 · utility

9Cited by

15References

20Claims

0Family size

Assignee

AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

Uwe KIESEWETTER · Landsberg am Lech, DE
Sebastian Mores · Munich, DE
Marius Bebesel · Augsburg, DE
Rupert Pfaller · Riemerling, DE

Key dates

Filing date	Feb 27, 2018
Grant date	Jan 11, 2022
Priority date	—
Expiry date	May 1, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64U2101/61
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A thrust producing unit for producing thrust in a predetermined direction, comprising at least two rotor assemblies and a shrouding that accommodates at most one of the at least two rotor assemblies, wherein the shrouding defines a cylindrical air duct that is axially delimited by an air inlet region and an air outlet region, and wherein the air inlet region exhibits in circumferential direction of the cylindrical air duct an undulated geometry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.