Abstract: A rotary engine with axially directly connected compression and power cylinders is disclosed, which includes a compression cylinder, a power cylinder, an intermediate cylinder wall located between the compression and the power cylinder to serve as a common inner-end wall of the two cylinders, and a combustion chamber unit fixed to a circumferential surface of the intermediate cylinder wall, so that the rotary engine has axially directly connected compression and power cylinders. A compression-side and a power-side rotational valve are separately fitted in two recessed end surfaces of the intermediate cylinder wall. The compression-side and the power-side rotational valve are provided with three L-shaped first and second openings, respectively.

Abstract: A rotary engine with axially directly connected compression and power cylinders is disclosed, which includes a compression cylinder, a power cylinder, an intermediate cylinder wall located between the compression and the power cylinder to serve as a common inner-end wall of the two cylinders, and a combustion chamber unit fixed to a circumferential surface of the intermediate cylinder wall, so that the rotary engine has axially directly connected compression and power cylinders. A compression-side and a power-side rotational valve are separately fitted in two recessed end surfaces of the intermediate cylinder wall. The compression-side and the power-side rotational valve are provided with three L-shaped first and second openings, respectively.

Abstract: A combustion chamber for rotary engine includes an inner chamber having a spherical interior wall surface and including a left-half and a right-half chamber tightly connected together; and an outer casing including an upper cover, a lower cover and a locating plate. The left-half chamber has an intake pipe arranged on a left end thereof and a spark-plug mounting pipe perpendicularly extended from a right end thereof; and the right-half chamber has an exhaust pipe arranged on a right end thereof. The upper and lower covers are fitted onto upper and lower sides of the inner chamber, respectively; and the locating plate is provided with a central opening for the spark-plug mounting pipe to extend therethrough. The upper and lower covers and the locating plate are screw-fastened together to form the complete outer casing, such that the inner chamber is confined in the outer casing to maintain an integral state.

Abstract: A combustion chamber for rotary engine includes an inner chamber having a spherical interior wall surface and including a left-half and a right-half chamber tightly connected together; and an outer casing including an upper cover, a lower cover and a locating plate. The left-half chamber has an intake pipe arranged on a left end thereof and a spark-plug mounting pipe perpendicularly extended from a right end thereof; and the right-half chamber has an exhaust pipe arranged on a right end thereof. The upper and lower covers are fitted onto upper and lower sides of the inner chamber, respectively; and the locating plate is provided with a central opening for the spark-plug mounting pipe to extend therethrough. The upper and lower covers and the locating plate are screw-fastened together to form the complete outer casing, such that the inner chamber is confined in the outer casing to maintain an integral state.