公开(公告)号：US20210070430A1

公开(公告)日：2021-03-11

申请号：US17063712

申请日：2020-10-05

Applicant: Bell Textron Inc.

Inventor： Douglas Andrew Goodwin ,  David Andrew Prater ,  Eric Stephen Olson ,  David Bryan Roberts ,  Chia-Wei Su ,  Michael David Trantham ,  Charles Eric Covington

IPC: B64C27/12 ,  B64D35/08 ,  F16D41/04

Abstract: A multimode clutch assembly is positioned in a powertrain of a rotorcraft. The clutch assembly includes a freewheeling unit having a driving mode in which torque applied to the input race is transferred to the output race and an overrunning mode in which torque applied to the output race is not transferred to the input race. A bypass assembly has an engaged position that couples the input and output races of the freewheeling unit. An actuator assembly shifts the bypass assembly between engaged and disengaged positions. An engagement status sensor is configured to determine the engagement status of the bypass assembly. In the disengaged position, the overrunning mode of the freewheeling unit is enabled such that the clutch assembly is configured for unidirectional torque transfer. In the engaged position, the overrunning mode of the freewheeling unit is disabled such that the clutch assembly is configured for bidirectional torque transfer.

公开(公告)号：US20200232781A1

公开(公告)日：2020-07-23

申请号：US16840996

申请日：2020-04-06

Applicant: Bell Textron Inc.

Inventor： David Bryan Roberts ,  Charles Eric Covington ,  Brady Garrett Atkins

IPC: G01B7/30 ,  G01D5/249 ,  B64C29/00 ,  G01B11/04 ,  G01D5/347 ,  G01B11/26 ,  G01B7/04

Abstract: A method and system to measure a parameter associated with a component, device, or system with a specified accuracy, including: providing one or more sensors operably disposed to detect the parameter; obtaining a coarse measurement of the parameter within a first range using the one or more sensors, wherein the first range includes minimum and maximum values for the parameter; obtaining a fine measurement of the parameter within a second range using the one or more sensors, wherein the second range is smaller than the first range and has a specified ratio to the first range that provides the specified accuracy; determining a current value of the parameter by combining the coarse and fine measurements; and providing the current value of the parameter to a communications interface, a storage device, a display, a control panel, a processor, a programmable logic controller, or an external device.