Single-stroke internal combustion engine

A single-stroke internal combustion engine, comprising a cylinder seat and a power wheel, characterized in that the cylinder seat comprises a circular cylinder for accommodating the power wheel, at least one or more than one inwardly concave first explosion chamber formed on a peripheral surface of a cylinder wall, and at least an ignition system, a fuel supply system, a compression means, an exhaust means and an intake means are installed on each first explosion chamber and configured to be corresponsive to the external periphery of the cylinder seat and communicated with the cylinder, wherein the ignition system is configured to be corresponsive to the first explosion chamber;

• the compression means includes an elastically actuated gas barrier member, and the gas barrier member elastically abuts and airtightly seals the peripheral surface of the power wheel;
• the power wheel is freely rotatable and slidably coupled to the circular cylinder of the cylinder seat, and at least one or more than one compression chamber and second explosion chamber disposed adjacent to one another on the peripheral surface, and the compression chamber and the second explosion chamber are rotated in corresponsive to the first explosion chamber, the fuel supply system, the compression means, the exhaust means and the intake means of the cylinder seat;
• wherein, the compression chamber and the second explosion chamber are rotated and provided for accommodating fresh air supplied by the intake means and the fuel gas inputted by the fuel supply system;
• and the compression chamber is rotated and provided for elastically pressing and entering a gas barrier member of the compression means and maintaining a mutual airtight contact.