Redundantes Hubschraubersteigungswinkeländerungslager

Details

Veröffentlichungs-Nr.

EP3587845

Aktenzeichen

EP19182757

Anmeldetag

27. Juni 2019

Veröffentlichung

3. August 2022

Erteilung

3. August 2022

Rechtsraum

EP

IPC

F16C19/52B64C11/32B64C27/59B64C27/605B64C27/78B64C27/82F16C19/54// F16C39/02

Abstract

An aircraft rotor system includes a rotating pitch change shaft which rotates about an axis, a translating element disposed within the rotating pitch change shaft and movable along the axis and a pitch change bearing assembly which transfers movement of the translating element to the pitch change shaft. The pitch change bearing assembly includes a primary bearing and a secondary bearing coupled to the rotating pitch change shaft via the translating element when the primary bearing is in a first mode. A thrust shoulder is coupled to the translating element. The thrust shoulder is movable into engagement with the secondary bearing in response to failure of the primary bearing such that in a second mode, movement of the translating element is primarily transferred to the pitch change shaft via the secondary bearing.

Anmelder

Firma

Sikorsky Aircraft Corporation

Land

🇺🇸 USA

Fachgebiete