Pilot Operated Piston Oil Cooling Jet Control Valve

A pilot operated piston oil cooling jet control valve configured to be in communication with a main oil galley, an oil pan, and a cooling jet, the pilot operated piston oil cooling jet control valve comprising:

• a valve body defining a main valve seat;
• a pilot housing arranged within the valve body and defining an oil pan vent arranged in communication with the oil pan, a pilot valve seat, a check valve seat, and a main oil galley port;
• a pilot poppet arranged within the pilot housing and movable between a pilot closed position where the pilot poppet engages the pilot valve seat and a pilot open position where the pilot poppet does not engage the pilot valve seat;
• a check valve arranged within the pilot housing and in selective engagement with the check valve seat;
• and
• a main stage poppet slidingly received within the pilot housing and movable between an open position where the main stage poppet does not engage the main valve seat and flow is provided between the main oil galley and the cooling jet, and a closed position where the main stage poppet engages the main valve seat and flow is inhibited between the main oil galley and the cooling jet.

A pilot operated piston oil cooling jet control valve configured to be in communication with a main oil galley and at least one cooling jet, the pilot operated piston oil cooling jet control valve comprising:

• a valve body defining a spring chamber arranged therein;
• a pilot poppet arranged within the valve body and moveable between a pilot open position where fluid communication is provided from the spring chamber to the cooling jet and a pilot closed position where fluid communication is inhibited between the spring chamber and the cooling jet;
• a main poppet arranged within the valve body and movable between an open position where fluid communication is provided from the main oil galley and the cooling jet, and a closed position where fluid communication is inhibited between the main oil galley and the cooling jet;
• and
• a variable orifice arranged within the valve body,
• wherein when the main poppet moves toward the open position, the variable orifice is configured to close to increase a pressure drop across the main poppet.