Pic. 2.45. Oil Spray Nozzle Valve: 1 - nozzle; 2 - valve body; 3 - spring; 4 - oil; 5 - oil channel; 6 - check ball valve
Oil spray nozzle valves installed in the cylinder block (in the root neck). The effectiveness of the piston cooling by splash oil is improved by optimizing the placement of valves that are directed to the bottom of each piston. Oil spray nozzle valves are designed to maintain optimal oil pressure in the engine when spraying (pic. 2.45).