Invention Grant
US09476312B2 Swashplateless active blade pitch control with a mechanical delta-3 restraint having an instantaneous blade pitch-flap coupling response
有权
具有瞬时叶片间距 - 翼片耦合响应的机械三角-3限制的无切槽主动叶片俯仰控制
- Patent Title: Swashplateless active blade pitch control with a mechanical delta-3 restraint having an instantaneous blade pitch-flap coupling response
- Patent Title (中): 具有瞬时叶片间距 - 翼片耦合响应的机械三角-3限制的无切槽主动叶片俯仰控制
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Application No.: US13841390Application Date: 2013-03-15
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Publication No.: US09476312B2Publication Date: 2016-10-25
- Inventor: Christopher E. Foskey , Frank B. Stamps
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: BELL HELICOPTER TEXTRON INC.
- Current Assignee: BELL HELICOPTER TEXTRON INC.
- Current Assignee Address: US TX Fort Worth
- Agency: Chalker Flores, LLP
- Agent Daniel J. Chalker; Edwin S. Flores
- Main IPC: B63H1/06
- IPC: B63H1/06 ; F01D7/00 ; B64C27/605 ; B64C27/72
Abstract:
An apparatus comprising a hub configured to couple to a mast, a grip configured to couple to the hub and a rotor blade, a pitch actuator coupled to the grip and configured to change a pitch of the rotor blade relative to the mast, and a delta-3 restraint coupled to the pitch actuator, wherein the delta-3 restraint is fixed relative to the mast. An apparatus comprising a hub configured to couple to a mast, a grip configured to couple to the hub and a rotor blade, a pitch actuator coupled to the grip and configured to change a pitch of the rotor blade relative to the mast, and a delta-3 restraint coupled to the pitch actuator, wherein the delta-3 restraint is configured to control the pitch of the blade relative to the mast when the pitch actuator fails, and wherein the delta-3 restraint provides an instantaneous blade pitch-flap coupling response.
Public/Granted literature
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