Internal-combustion engines – Valve – Valve head cooperates with manifold
Patent
1983-05-18
1985-03-12
Lazarus, Ira S.
Internal-combustion engines
Valve
Valve head cooperates with manifold
123308, F02F 142
Patent
active
045038198
ABSTRACT:
An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion and the helical portion. The separating wall has an upstream end portion centrally located between the opposed side walls of the intake port. A rotary valve is arranged in the bypass passage and is actuated by a vacuum-operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of the engine is increased beyond a predetermined value.
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Inoue Tokuta
Kanda Mutsumi
Kotani Takeshi
Nakanishi Kiyoshi
Okumura Takeshi
Lazarus Ira S.
Toyota Jidosha & Kabushiki Kaisha
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