Operating assembly for low temperature start of improved motor vehicle

The invention provides an operating assembly for engine low temperature start of an improved motor vehicle, which comprises a shell, wherein a double-layer vacuum heat-preserving vessel and a miniature straight-flow water pump are arranged in the cavity of the shell. The operating assembly is characterized in that the original double-layer vacuum heat-preserving vessel with a single cavity is changed into a cofferdam type vessel so that the double-layer vacuum heat-preserving vessel is provided with double cavities; and one of the double cavities is used for storing the heat energy from the cooling liquid in the running process of the engine, and the other cavity is used for storing the heat energy from the lubricating oil in the running process of the engine. The invention not only can store and utilize the heat energy from the cooling liquid in the running process of the engine, but also can store and utilize the heat energy from the lubricating oil in the running process of the engine and output the coolin