公开(公告)号：US09656746B2

公开(公告)日：2017-05-23

申请号：US14609905

申请日：2015-01-30

Applicant: Bell Helicopter Textron Inc.

Inventor： Geoffrey C Latham ,  Carlos A Fenny ,  Jean-Sébastien Plante ,  Brady Atkins ,  Guifré Julio ,  Marc Denninger ,  Charles Eric Covington ,  Paul Wilson

IPC: B64C27/68 ,  B64C27/56 ,  B64D43/00

CPC classification number: B64C27/68 ,  B64C27/56 ,  B64D43/00

Abstract: According to one embodiment, a trim actuator for a pilot input device includes a driven member and a driving member configured to receive mechanical energy from a power source. A magnetorheological (MR) fluid is disposed between the driving member and the driven member and configured to transmit a variable amount of mechanical energy from the driving member to the driven member. An output member configured to be coupled between the driven member and the pilot input device. A magnetic circuit configured to deliver a magnetic field towards the MR fluid. The magnetic circuit is configured to control movement of the pilot input device by varying the strength of the magnetic field delivered towards the first MR fluid.

公开(公告)号：US09656745B2

公开(公告)日：2017-05-23

申请号：US14960482

申请日：2015-12-07

Applicant: Bell Helicopter Textron Inc.

Inventor： Geoffrey C Latham ,  Albert G Brand ,  Jean-Sébastien Plante ,  Guifré Julio ,  Marc Denninger

IPC: B64C27/64 ,  B64C27/56 ,  B64C27/68

CPC classification number: B64C27/64 ,  B64C27/56 ,  B64C27/68 ,  B64D31/04 ,  B64D31/14 ,  F16D37/02 ,  F16D2037/001 ,  F16D2037/007

Abstract: According to one embodiment, a trim actuator for a pilot input device includes a driven member and a driving member configured to receive mechanical energy from a power source. A magnetorheological (MR) fluid is disposed between the driving member and the driven member and configured to transmit a variable amount of mechanical energy from the driving member to the driven member such that the driven member moves in a first direction. An output member configured to be coupled between the driven member and the pilot input device. A spring is in mechanical communication with the output member and configured to apply a force in a second direction opposite of the first direction. A magnetic circuit is configured to control movement of the pilot input device by varying the strength of a magnetic field delivered towards the first MR fluid.