Safety air supply for diesel engine shutdown systems

A pneumatic shutdown system for use on Diesel engines for moving the fuel injectors between an operative position and an inoperative position comprising;

• an air cylinder having a movable piston operatively connected to the fuel injectors of the engine whereby movement of the piston causes movement of the fuel injectors between an operative firing position and an inoperative nonfiring position,
• an enclosed air reservoir tank capable of being pressurized to contain a supply of pressurized air,
• air control means on said reservoir tank including one-way valve means operative to allow air to enter said tank up to a predetermined pressure and thereafter maintaining a pressurized supply of air contained within said tank, and outlet means connected to the inlet of the air cylinder for moving the piston.
• operator control means for selectively moving said valve means to an open position allowing the contained pressurized air in said tank to be directed through said outlet means to the inlet of the air cylinder of the existing pneumatic shutdown system thereby supplying sufficient air pressure to move the piston,
• said operator control means comprising a solenoid valve cooperative with said air control means and controlled remote from the engine compartment for selectively releasing the contained pressurized air in said tank to the inlet of the air cylinder, and
• the movement of said piston causing movement of the fuel injectors between an operative firing position and an inoperative nonfiring position.