A cylinder structure of a rotary piston internal combustion engine, wherein the cylinder structure comprises a rotating shaft, the two sides of the rotating shaft are installed on machine bases, front deflector rods and rear deflector rods are fixed to the two outer ends of the rotating shaft respectively, the included angles between the front deflector rods and the rear deflector rods are 29 degrees, the front deflector rods at the two outer ends are arranged in the radial direction of the rotating shaft at 180 degrees, and the rear deflector rods at the two outer ends are arranged in the radial direction of the rotating shaft at 180 degrees;
- a combustion device and a compression device are sequentially arranged between the two machine bases, the combustion device comprises a rotary drum fixed to the rotating shaft, a piston strip is fixed to the surface of the rotary drum in the axial direction, a combustion cylinder is arranged outside the rotary drum and fixed to the machine bases, a flashboard groove is formed in the top of the combustion cylinder in the axial direction, and a flashboard in clearance fit with the flashboard groove is arranged on the flashboard groove;
- two spaces are formed by the inner surface and the two inner end faces of the combustion cylinder, the surface of the rotary drum, the two opposite faces of the piston strip and the two opposite faces of the flashboard, the space gradually shrunk in the rotating direction of the rotary drum is an exhaust cavity, and the space gradually enlarged in the rotating direction of the rotary drum is a combustion cavity;
- an air inlet pipe and an exhaust pipe are connected to the two sides of the flashboard groove of the combustion cylinder respectively, a fuel injector and an electric spark controller are further arranged on the combustion cylinder on one side of the air inlet pipe, the two ends of the exhaust pipe communicate with the atmosphere and the exhaust cavity respectively, the two ends of the air inlet pipe are connected with an air storage tank and the combustion cavity respectively, and an air valve is arranged on the air inlet pipe;
- the compression device comprises a rotary drum fixed to the rotating shaft, a piston strip is fixed to the surface of the rotary drum in the axial direction, a compression cylinder is arranged outside the rotary drum and fixed to the machine bases, a flashboard groove is formed in the top of the compression cylinder in the axial direction, and a flashboard in clearance fit with the flashboard groove is arranged on the flashboard groove;
- two spaces are formed by the inner surface and the two inner end faces of the compression cylinder, the surface of the rotary drum, the two opposite faces of the piston strip and the two opposite faces of the flashboard, the space gradually shrunk in the rotating direction of the rotary drum is a compression cavity, and the space gradually enlarged in the rotating direction of the rotary drum is a negative pressure cavity;
- an air suction pipe and an air outlet pipe are connected to the two sides of the flashboard groove of the compression cylinder respectively, the two ends of the air suction pipe communicate with the atmosphere and the negative pressure cavity respectively, the two ends of the air outlet pipe are connected with an air storage tank and the compression cavity respectively, and a one-way valve is arranged on the air outlet pipe;
- the piston strip on the rotary drum in the compression device and the piston strip on the rotary drum in the combustion device are arranged at an angle of 180 degrees;
- each front deflector rod moves forwards by 10 degrees in the rotating direction of the rotary drum in the radial direction where the piston strip on the rotary drum on the same side is located;
- two sets of lever mechanisms are installed on the machine bases on the two sides respectively, each set of lever mechanism comprises a bracket fixed to the corresponding machine base and a lever hinged to the corresponding bracket, the inner end of each lever is hinged to the flashboard on the rotary drum on the same side, an idler wheel is installed at the outer end of each lever, each idler wheel makes instantaneous contact with the front deflector rod rotating on the same side, each front deflector rod rapidly presses down the outer end of the corresponding lever during contact, then each idler wheel makes instantaneous contact with the rear deflector rod rotating on the same side, and each rear deflector rod quickly jacks up the outer end of the corresponding lever during contact, so that each flashboard hinged with the inner end of the corresponding lever vertically moves up and down.