Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Air or combustible mixture entering the combustion chamber...
Patent
1979-05-22
1981-06-09
Lazarus, Ronald H.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Air or combustible mixture entering the combustion chamber...
123308, 123193P, 123193CP, F02M 2506
Patent
active
042718031
ABSTRACT:
An internal combustion engine comprises a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to the first raised portion with respect to the axis of the piston, and a third raised portion formed on the inner wall of the cylinder head above the second raised portion. A first flat squish area is formed between the flat peripheral top face of the piston and the flat bottom face of the first raised portion. A second spherical shell shape squish area is formed between the spherical bottom wall of the third raised portion and the spherical rear face of the second raised portion. A secondary throttle valve is arranged in the intake passage located downstream of the throttle valve of a carburetor. A secondary intake passage is branched off from the intake passage located between the secondary throttle valve and the throttle valve of the carburetor and opens into the intake port at a position near the intake valve. The secondary throttle valve is closed when the engine is operating under a light load, while the secondary throttle valve is opened when an engine is operating under a heavy load.
REFERENCES:
patent: 2028585 (1936-01-01), Blake
patent: 2843103 (1958-07-01), Wyczalek
patent: 3543736 (1970-12-01), Suzuki
patent: 4182279 (1980-01-01), Sato
patent: 4194474 (1980-03-01), Endo
Deguchi Ryuichi
Nakanishi Kiyoshi
Okumura Takeshi
Tanahashi Toshio
Lazarus Ronald H.
Toyota Jidosha Kogyo Kabushiki Kaisha
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