Layered piston heat transfer test apparatus

The invention relates to a layered piston heat transfer test apparatus. A cylinder sleeve (4) is sleeved by a jacket (2), a water cavity (3) is arranged between the jacket (2) and the cylinder sleeve (4) in an enclosed mode, the contact portions of the upper ends and the lower ends of the cylinder sleeve (4) and the jacket (2) are respectively provided with an O-shaped rubber sealing ring (6) and a rubber ring (18), a piston composed of a piston head (11) and a piston body (17) is installed in the cylinder sleeve (4), the piston head (11) and the piston body (17) are connected through an adjusting pad (12), a gland (7) connects the cylinder sleeve (4) with the jacket (2) in a compacting mode through a bolt (10), a first ring (13) is arranged on the piston body (17), a second ring (14) is arranged on the piston body (17) and is disposed below the first ring (13), an oil ring (15) is arranged on the piston body (17) and is disposed below the second ring (14), oil cavities (16) are arranged inside the piston body (17), and a cooling nozzle (19) is arranged below the oil cavities (16). According to the invention, the piston top height is changed through the adjusting pad, and the heating state and the cooling state of the piston are effectively simulated.