Drehflügler-Querstromgebläsesysteme mit Variabler Schubkraft

Details

Veröffentlichungs-Nr.

EP3281862

Aktenzeichen

EP16188806

Anmeldetag

14. September 2016

Veröffentlichung

28. November 2018

Erteilung

28. November 2018

Rechtsraum

EP

IPC

F04D29/36B64C11/00B64C27/06B64C27/82B64C39/00F04D17/04

Abstract

In some embodiments, a rotorcraft includes a fuselage (10), a tailboom (24), a drive system (38) and a variable thrust cross-flow fan system (32; 100). The cross-flow fan system (32; 100) includes a cross-flow fan assembly (102) that is mechanically coupled to a drive shaft (108) and operable to rotate with the drive shaft about a longitudinal axis. The cross-flow fan assembly (102) includes first and second driver plates (104, 106) having a plurality of blades (110a-110g) rotatably mounted therebetween. The blades are disposed radially outwardly from the longitudinal axis and have a generally circular path of travel when the cross-flow fan assembly (102) rotates about the longitudinal axis. The blades (110a-110g) are moveable between a plurality of pitch angle configurations. A control assembly (130, 134a-134g, 142a-142g) is coupled to the blades. The control assembly (130, 134a-134g, 142a-142g) is operable to change the pitch angle configuration of the blades (110a-110g) to generate variable thrust at a substantially constant rotational speed of the cross-flow fan assembly (102).

Anmelder

Firma

Bell Helicopter Textron Inc.

Land

🇺🇸 USA

Fachgebiete