METHOD FOR USING PENDULUM PISTON AS ENERGY CONSERVATION CYCLE AND DEVICE THEREFOR

摘要

PROBLEM TO BE SOLVED: To raise a compression ratio as well as raising heat efficiency and a ratio output in the same compression ratio, and reduce environmental pollution while making the combustion close to constant-volume combustion by setting non-constant-volume combustion to an energy storage cycle as nearly isolation combustion in a main combustion chamber whose diameter is contracted limiting to the vicinity of a dead point. SOLUTION: Isolation combustion in a main combustion chamber whose diameter is contracted is much used to 30 deg. after a dead point, the use rate of heat energy is set to a minimum level. The length of a diameter contracted piston 9 is regulated, and an isolation combustion term is selected. Multiple annular recessed/projections 10 which are perpendicular to the operating condition of a double-ended diameter enlarged piston 1 are arranged on the outer peripheral surface of the piston 9. A plurality of agitating groove 44 slantly extending to the operating direction of the piston 1 are arranged on the outer peripheral surface. A diameter contracted main combustion chamber 8 and a diameter enlarged combustion chamber 17 are communicated with each other as the isolation combustion in the diameter contracted main combustion chamber 8, and one way air flow passage 21 which a check valve is arranged in the diameter contracted main combustion chamber 8 is arranged on a cylinder head 16. It is thus possible to improve combustion as a similar constant-volume combustion so as to reduce frictional loss.