Thermal-difference power generating machine

The utility model belongs to the technical field of the power machine application technique and discloses a temperature difference power machine. The temperature difference power machine is composed of shape memory spring power output structure and cold and hot water supplying structure. An active piston cold and hot water chamber is arranged in an active piston and a memory alloy spring is arranged between the active piston and the upper end of a bearing seat. A power-assisted spring is arranged between the active piston and a pressing disk and a pillar piston pump, a cold and hot water heating tank, an energy storing device body and a two-position five connection valve are used to supply the cold and hot water for the memory alloy spring in the active piston. The purpose of using the cold and hot water as the energy source of the power machine can be achieved.