Invention Grant
- Patent Title: Mount systems for pylon assemblies with coaxial rotors
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Application No.: US16717095Application Date: 2019-12-17
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Publication No.: US11203418B2Publication Date: 2021-12-21
- Inventor: Frank Bradley Stamps , Michael Reaugh Smith , Michael Scott Seifert
- Applicant: Textron Innovations Inc.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations Inc.
- Current Assignee: Textron Innovations Inc.
- Current Assignee Address: US RI Providence
- Agency: Lawrence Youst PLLC
- Main IPC: B64C27/10
- IPC: B64C27/10 ; B64C29/00 ; B64C27/12 ; B64C27/52 ; B64C27/82 ; B64C27/32 ; B64C27/00

Abstract:
A mount system for tiltably supporting a pylon assembly of a rotorcraft. First, second, third and fourth pylon links are each coupled between the pylon assembly and the airframe of the rotorcraft. The first pylon link has a first axis, the second pylon link has a second axis, the third pylon link has a third axis and the fourth pylon link has a fourth axis. Each of the axes intersects at a focal point located proximate a coaxial rotor system having counter-rotating upper and lower rotor assemblies such that the focal point provides a virtual pivot point about which the pylon assembly tilts to generate a control moment about a center of gravity of the rotorcraft that counteracts lateral and fore/aft moments generated by the upper and lower rotor assemblies during rotorcraft maneuvers.
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