Turbine engine having a pair of propellers for an aircraft
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United States of America Patent
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Mar 27, 2018
Issued Date -
N/A
app pub date -
Feb 3, 2015
filing date -
Feb 3, 2014
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An engine includes systems for changing the pitch of propeller blades, a system for an upstream propeller including a linear actuator and a transmission mechanism connecting the actuator to the blades to transform the sliding of the actuator into a rotation of the blades, the upstream propeller including a rotatable housing rigidly connected to a rotatable shaft supported in a static housing of the turbine engine by an upstream bearing and by a downstream bearing. The rotatable housing of the upstream propeller includes a support rigidly connected to the rotatable housing and surrounding the static housing. The actuator is annular and fixed outside to the support, the transfer mechanism includes connecting rods and rotatable radial arms traversing the gaseous flow path, and the downstream bearing is radially located between the static housing and the support.
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