Patent ID: 7308884
Filing Date: 2007-12-18
Classification: F01C,F02B,Y02T

Abstract:
1. A rotary engine comprising: a rotor housing that is formed with a cylindrical-shaped hollow section; a flywheel rotor that is formed into a circular column shape having an outer diameter that is less than the inner diameter of said rotor housing so that a ring-shaped space is formed from the inner peripheral wall of said rotor housing, and is supported by an output shaft so that it is capable of rotating in the circumferential direction inside said rotor housing with the center of said hollow section as the center of rotation; a spark plug that is located in said rotor housing so that electric discharge is possible inside a combustion chamber, where said combustion chamber is said ring-shaped space that is formed between the inner peripheral wall of said rotor housing and the outer peripheral wall of said flywheel rotor; an intake valve that is located at a specified location inside said rotor housing further downstream in the direction of rotation of said flywheel rotor than the location of said spark plug, and is constructed such that said intake valve can partition off said combustion chamber during an intake valve partitioning operation and open up said combustion chamber during non-partitioning intake valve operations, said intake valve introduces or cuts off the flow of a fuel-air mixture to said combustion chamber; an exhaust valve that is located at a specified location inside said rotor housing further upstream in the direction of rotation of said flywheel rotor than the location of said spark plug, and is such that said exhaust valve can connect said combustion chamber with or cut off said combustion chamber from the outside and exhaust combustion gas that is combusted in said combustion chamber to the outside; an airtight-sealing valve that is located at a specified location inside said rotor housing between said spark plug and said exhaust valve, and is constructed so that said airtight-sealing valve can partition off said combustion chamber during an airtight-sealing valve partitioning operation and open up said combustion chamber during a non-partioning air-tight sealing valve operation, and where said air-tight sealing valve partitioning operation is linked with the intake valve partitioning operation so that said fuel-air mixture is moved and compressed, said airtight sealing valve is linked with said exhaust valve to exhaust said combustion gas to the outside; and a piston head that is located in part of the outer peripheral wall of said flywheel rotor so that said piston head oscillates between being in sliding contact with the inner peripheral wall of said rotor housing and being released from sliding contact.