RAM AIR TURBINE STOWING SYSTEM

摘要

A ram air turbine (RAT) stowing system includes a closed loop hydraulic circuit configured to hold a quantity of a hydraulic fluid to be utilized only by the RAT stowing system and a RAT actuator disposed in fluid communication with the closed loop hydraulic circuit. A pump system is connected to the hydraulic circuit to selectively pump the hydraulic fluid to a stow reservoir portion of the RAT actuator to move the RAT actuator from a deployed position to a stowed position. A control valve is connected to the hydraulic circuit between the RAT actuator and the pump to selectively allow the hydraulic fluid to be drained from the stow reservoir portion of the RAT actuator in a drain state and to allow the hydraulic fluid to be pumped into the stow reservoir portion of the RAT actuator in a pump state.

主权项

1. A ram air turbine (RAT) stowing system, comprising:
a closed loop hydraulic circuit configured to hold a quantity of a hydraulic fluid to be utilized only by the RAT stowing system; a RAT actuator disposed in fluid communication with the closed loop hydraulic circuit; a pump system connected to the hydraulic circuit to selectively pump the hydraulic fluid to a stow reservoir portion of the RAT actuator to move the RAT actuator from a deployed position to a stowed position; and a control valve connected to the hydraulic circuit between the RAT actuator and the pump to selectively allow the hydraulic fluid to be drained from the stow reservoir portion of the RAT actuator in a drain state and to allow the hydraulic fluid to be pumped into the stow reservoir portion of the RAT actuator in a pump state.