Variable cycle engine passive mechanism

摘要

A mechanism for varying the cycle of a power plant comprising a turbine engine having a housing connected to the rotating spool of the turbine engine with a plurality of propeller blades slideably attached to the housing such that at maximum rotational speed of the turbine engine the blades are extended beyond the cowling of the engine providing external airflow. A nonlinear spring is used for causing the propeller blades to stow within the confines of the cowling of the engine at minimum rotational speed of the engine thus providing no external airflow.