Affusion, pressurization and oil-saving device for automobile

The utility model relates to the automobile fuel-saving technical field, in particular to an automobile water-filling supercharging fuel-saving device, comprising a water supply pipe connected with an automobile water tank, a cutoff valve arranged in the water supply pipe, and a triplet which is connected on the other end of the water supply pipe and also connected with an air inlet pipe of the automobile carburetor. Wherein, a connection component between the cutoff valve and the water supply pipe is a copper pipe or a stainless steel pipe, and the bore diameter of a water inlet of the triplet is 0.20 to 0.50mm. For the automobile whose air displacement is 2.4L, the bore diameter of the water inlet of the triplet is 0.30mm; for the automobile whose air displacement is 2.2L, the bore diameter of the water inlet of the triplet is 0.25mm; and for the automobile whose air displacement is 1.8L, the bore diameter of the water inlet of the triplet is 0.20mm. The automobile fuel-saving device only adds a water supply pipeline between the water tank and the carburetor. Through employing the high temperature in the combustion room, the water in the engine rapidly bulges, the power of the engine increases, and the rate of fuel saving reaches to more than 25%.