Hydraulic Aircraft/Stores Cartridge.
DEPARTMENT OF THE NAVY WASHINGTON DC
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A hydraulic cartridge suitable for releasing stores in aircraft relies on a pressurized piston rod which extends upon release of hydraulic pressure. The piston rod is enclosed in a cylinder and connected to a source of hydraulic fluid. Upon arming of the piston rod a hydraulic liquid is pumped into the piston rod and forces out a gas via an accumulation piston. Upon complete filling of the piston rod, a trigger is held in place by the pressurized fluid. upon release of pressure, the pressure on the trigger becomes unbalanced and a spring release releases the trigger from the piston rod permitting it to extend. Author