Synchronous pneumatic machine

The utility model relates to a synchronous pneumatic machine, including urceolus, inner tube, water conservancy diversion pivot, characterized by: urceolus outer wall cross section is circular, the inner wall cross section is oval, before the urceolus, be equipped with front end housing and rear end cap on the back port respectively, before water conservancy diversion pivot and the urceolus, the rear end cap passes through the bearing and connects, the inner chamber rear end of inner tube is convex, the back port of inner tube is fixed with the water conservancy diversion pivot, at the preceding port of water conservancy diversion pivot with the urceolus, be equipped with the water conservancy diversion cover between the front end housing, the water conservancy diversion cover is fixed with the urceolus front end housing, rotate with the water conservancy diversion pivot and be connected, it has the water conservancy diversion hole to open along the axial at the preceding end face centre of water conservancy diversion pivot, be equipped with a set of above interval distribution's inlayer flabellum group in the water conservancy diversion pivot, sheathe in at the water conservancy diversion, the front portion in water conservancy diversion cover exhaust hole is equipped with adjusts palirrhea cover, on the outer wall of inner tube according to the circumference equidistant be equipped with outer quiet, the moving vane. Its advantage is: rational in infrastructure, energy conversion efficiency is high.