公开(公告)号：US20190337629A1

公开(公告)日：2019-11-07

申请号：US15967831

申请日：2018-05-01

Applicant: Bell Helicopter Textron Inc.

Inventor： Colton James GILLILAND ,  Mark Alan PRZYBYLA ,  Eric Stephen OLSON

IPC: B64D27/02 ,  B64D27/10 ,  B64D27/24 ,  B64C29/00

Abstract: An exemplary tiltrotor aircraft with a hybrid drive system includes a first propulsion system having a first engine and a first supplemental driver operably coupled to a first proprotor that is operable between a helicopter mode and an airplane mode and a second propulsion system having a second engine and a second supplemental driver operably coupled to a second proprotor that is operable between a helicopter mode and an airplane mode.

公开(公告)号：US20190323596A1

公开(公告)日：2019-10-24

申请号：US15961370

申请日：2018-04-24

Applicant: Bell Helicopter Textron Inc.

Inventor： Eric Stephen OLSON ,  David BOCKMILLER

IPC: F16H57/04

Abstract: An exemplary passive oil system includes a reservoir housing configured in operation to rotate around a rotational axis, the reservoir housing defining a reservoir between a top wall, a bottom wall, innermost side, and an outer sidewall; and an outlet positioned adjacent the outer sidewall to discharge a lubrication fluid contained in the reservoir in response to the reservoir housing rotating around the rotational axis.

公开(公告)号：US20200182679A1

公开(公告)日：2020-06-11

申请号：US16213575

申请日：2018-12-07

Applicant: Bell Helicopter Textron Inc.

Inventor： Eric Stephen OLSON

IPC: G01F23/296

Abstract: An exemplary liquid tank level measurement system includes a tank having a wall, an accelerometer attached to the wall and configured to measure a vibration in the wall, and an instrument electronically connected to the accelerometer, the instrument configured to communicate a liquid level condition responsive to a vibration measurement received from the accelerometer.