Driver device for an aircraft

US11479356B2 · kind B2 · utility

Assignee

• Cyclotech GmbH · GB

Inventors

• Michael Winderl · Dietkirchen b. Neumarkt, DE
• Stephan Lanser · Alberndorf, AT

Key dates

• Filing date: Dec 11, 2018
• Grant date: Oct 25, 2022
• Expiry date: Jul 13, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64U30/20
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a propulsion device for an aircraft, comprising a blade (2) which can be rotated about an axis of rotation (51) of the propulsion device along a circular path (52) and is mounted for pivoting about a blade bearing axis parallel to the axis of rotation; a pitch mechanism having a coupling device (31) and a bearing device (33); and an offset device (4) to which the blade is coupled, the offset device defining an eccentric bearing axis (41) which is mounted at an adjustable offset distance. The coupling device is coupled to the blade at a coupling point (32) which is positioned in such a way that the plane that comprises the blade bearing axis and the coupling point and the tangential plane to the circular path through the blade bearing axis include a certain, non-vanishing angle (wα) when the offset distance is set to zero. According to a second aspect the blade bearing axis is shifted toward the axis of rotation by a certain distance relative to the plane that extends through the center of mass of the blade and that extends parallel to the axis of rotation and to the chord of the blade.