Engine, supercharger, air inlet connecting pipe and supercharger connecting structure

The supercharger comprises a supercharger body, and a first limiting convex shoulder protruding in the radial direction is arranged on the side, close to a volute, of an air inlet pipe of the supercharger; the outer diameter of the first limiting protruding shoulder is larger than that of the air inlet pipe, and the right air inlet pipe body serves as an assembling section and is used for being connected with an air inlet connecting pipe. The invention has the advantages of compact structure, small occupied assembly space and the like. 本发明公开了一种增压器，包括增压器本体，所述增压器的进气管靠近涡壳侧设有径向凸起的第一限位凸肩；第一限位凸肩的外径大于进气管的外径，其右侧进气管管体作为装配段，用于连接进气接管。本发明具有结构紧凑、占用装配空间少等优点。