Rotary engine
OwnerSeiki TATHUZAKIinventor
Life of this patent
Estimating the term…
Abstract
A rotary engine that performs intake-exhaust, compression and explosive combustion without having moving piston heads in the rotor, is capable of obtaining large output with simpler construction. A flywheel rotor is arranged inside a cylinder that is inside a housing of a rotary engine, and is integrated into a single unit with a piston head that comes in contact with the inner wall. Direction of rotation of the rotor, An exhaust valve, an explosion pressure stopper valve and a fuel-intake closing valve are provided in the cylinder, Each of these valves operate via active pins that are engaged in guide grooves on the outer surface of the rotor and a guide groove on a cam of the output shaft, to execute the intake-exhaust, compression and explosive combustion.
Claims7
A rotary engine, comprising:
- a rotor housing having a cylindrical cylinder in which a fuel-intake path and an exhaust-gas discharge path that open up into that cylinder are formed, and a combustion chamber that opens into the inner wall of the cylinder is formed between the opening of said fuel-intake path and said exhaust-gas discharge path;
- a cylindrical flywheel rotor that is located on an output shaft that passes through the center of said cylinder, and together with forming a circular space between the flywheel rotor and inner wall of said cylinder, has a piston head that is formed at a location on the outer surface of the flywheel rotor such that the piston head comes in contact with said inner wall of said cylinder;
- a spark plug that is provided,in said cylinder such that the tip end thereof is inside said combustion chamber;
- a fuel-intake and circular-space closing valve that is located in said cylinder near the combustion chamber on the downstream side in the direction of rotation of the rotor such that it can freely move out of or back into said cylinder, and can be switched between a first position and a second position, said first position being capable of selecting a state of opening the fuel-intake path and closing the circular space between the opening of the fuel-intake path and the opening of the combustion chamber and another state of blocking the fuel-intake path and opening the circular space, and said second position blocking the fuel-intake path and closing the circular space;
- fuel-intake and circular-space closing valve drive means for operating said fuel-intake and circular-space closing valve;
- an explosion pressure stopper valve that is located in said cylinder near said combustion chamber on the upstream side in the direction of rotation of said rotor such that it can freely move out of or back into said cylinder, and can be switched between closing and opening said circular space;
- explosion pressure stopper valve drive means for operating said explosion pressure stopper valve;
- an exhaust valve that opens and closes said discharge path;
- and
- exhaust valve drive means for operating said exhaust valve;
- wherein
- by operating said fuel-intake and circular-space closing valve, said explosion pressure stopper valve and said exhaust valve;
- it is possible to selectively perform:
- a fuel-intake and exhaust-gas discharge process wherein, with said fuel-intake and circular-space closing valve in said first position, said explosion pressure stopper valve closes said circular space and said exhaust valve opens said discharge path;
- a compression process wherein, with said fuel-intake and circular-space closing valve in said second position, said explosion pressure stopper valve opens said circular space and said exhaust valve closes said discharge path;
- and
- an explosive combustion process wherein, with said fuel-intake and circular-space closing valve in said first position, said explosion pressure stopper valve closes said circular space;
- and
- in said explosive combustion process said spark plug fires.
Dependencies are inferred from the claim text.