Invention Grant
- Patent Title: System for controlling the pitch of the propeller blades of a turbomachine, and a turbomachine with a propeller for an aircraft with such a system
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Application No.: US14264366Application Date: 2014-04-29
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Publication No.: US09677408B2Publication Date: 2017-06-13
- Inventor: Sébastien Tajan , Christophe Jacquemard , Adrien Fabre
- Applicant: SNECMA
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR1353924 20130429
- Main IPC: F01D7/00
- IPC: F01D7/00 ; B64C11/06 ; B64C11/32 ; B64D27/00
Abstract:
A control system includes a power actuator coaxial with the axis of rotation of the propeller, and a transmission device connecting the power actuator to pivots, of the blades to be controlled, arranged substantially radially with respect to the axis of rotation. The actuator is a rotary jack whose mobile part rotates about the axis of rotation and is connected to the transmission device by a mobile mechanical connection which transforms the rotation imparted by the mobile part of the jack about the axis of rotation into a rotation of the blades about the axes of the pivots which are perpendicular to the axis of rotation.
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