Invention Grant
- Patent Title: Elastomeric double Hooke's joint
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Application No.: US16561516Application Date: 2019-09-05
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Publication No.: US11136116B2Publication Date: 2021-10-05
- Inventor: Andrew Ryan Maresh , Chyausong Tzeng , Russell Mueller
- Applicant: Bell Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Bell Textron Inc.
- Current Assignee: Bell Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Agency: Fogarty LLP
- Main IPC: B64C27/41
- IPC: B64C27/41 ; B64C27/35 ; B64C27/12

Abstract:
Embodiments are directed to a double Hooke's joint gimbal in a rotor system. An upper Hooke's joint has four arms extending radially outward to define first and second axes, and a lower Hooke's joint has four arms extending radially outward to define third and fourth axes. A pair of connectors couple the upper Hooke's joint and the lower Hooke's joint. A first set of bearings are positioned between arms on the upper and lower Hooke's joints and the connectors. The first set of bearings comprise an elastomer, such as elastomeric journal bearings. The upper Hooke's joint is coupled to a yoke and rotor blades by a driver assembly that allows rotor blade flapping. The lower Hooke's joint is coupled to and driven by a mast. A spherical bearing allows the upper Hooke's joint to move laterally along the mast.
Public/Granted literature
- US20210070432A1 ELASTOMERIC DOUBLE HOOKE'S JOINT Public/Granted day:2021-03-11
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