Variable cycle engine passive mechanism

Details Variable cycle engine passive mechanism Variable cycle engine passive mechanism

1989-10-17

1990-12-18

Wayner, William E.

Fluid reaction surfaces (i.e., impellers)

Radially extensible or retractible rotor working member

Having pitch adjustment

416143, B63A 106

Patent

active

049782860

ABSTRACT:
A mechanism for varying the cycle of a power plant comprising a turbine ene 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.

REFERENCES:
patent: 2117788 (1938-05-01), Cable et al.
patent: 2442291 (1948-05-01), Hamel
patent: 2510216 (1950-06-01), Figley
patent: 2986218 (1961-05-01), Wagner et al.
patent: 3273655 (1966-09-01), Girard
patent: 3501248 (1970-03-01), Brocker
patent: 3561883 (1971-02-01), Berry
patent: 3763835 (1973-10-01), Miller et al.

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