F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/60
F02M 7/00 (2006.01)
Patent
CA 1056239
ABSTRACT OF THE DISCLOSURE This invention relates to a novel internal combustion engine. The engine comprises a piston, a cylinder block and a cylinder head which together define a single combustion chamber. An intake and an exhaust port are provided which communicate with the chamber with a main intake passage for introducing the air-fuel mixture into the intake port and a throttle valve in the intake passage. A spark plug is provided at a predetermined position within the chamber. A sub-intake valve is provided in the form of a sub-piston reciprocable with a cylindrical bore in the head and a sub-intake passage opens unto an inner peripheral wall of the cylindrical bore. An injection passage communicates with the cylindrical bore at one end and a means is provided for supplying gas to the sub-intake passage. The arrangement is such that the reciprocation of the sub-piston opens and closes communication between the sub-intake passage and the injection passage. The sub-intake valve opens at least during a suction stroke of the first piston and the sub-piston moves towards one end of the cylindrical bore during a compression stroke of the first piston. In doing so, a high speed of gas is injected from the injection passage into the combustion chamber during a suction and a compression stroke to promote a swirling action and turbulence in the fuel- air mixture. This improved mixing produces a more efficiency engine thereby reducing fuel consumption and the production of pollutants, particularly during idling.
299703
Akishino Katsuo
Hori Kenji
Kiyota Yuhiko
Nakagami Tatsuro
Nakamura Hirokazu
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