Simulation measurement device for temperature of engine oil in cold oil duct in piston

The utility model discloses a piston inner cooling oil duct engine oil temperature simulation measurement device, which comprises an engine oil box and a test piston, a piston top surface heater and a piston top surface temperature sensor are arranged on the top surface of the test piston, and a piston ring shore heater and a piston ring shore temperature sensor are arranged on the ring shore part of the test piston; two opposite sides of the test piston are respectively provided with an inner cooling oil channel oil inlet and an inner cooling oil channel oil outlet, and an oil outlet temperature sensor module is arranged below the inner cooling oil channel oil outlet; the top of the engine oil box is provided with an oil conveying pipe, the top end of the oil conveying pipe is provided with a piston spraying ditch, and an oil inlet of the inner cooling oil way is opposite to the piston spraying ditch. The engine oil box is connected with the oil conveying pipe through an oil guide pipe, an engine oil pump is