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US 4,497,288 AGranted
Intake device for an engine
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYoshikatsu Nakano, Masaaki Matsuura, Minoru Akiyama
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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYoshikatsu Nakano, Masaaki Matsuura, Minoru Akiyama
Estimating the term…
An intake device for an engine including the first intake valve located at the downstream end of the first intake passage that is connected to the primary carburetor. A second intake valve is located at the downstream end of the second intake passage that is connected to the secondary carburetor in a cylinder. Both intake passages are connected to each other through a pathway situated in the middle of said intake passages. A check valve located in said pathway allows flow from the first intake passage to the second intake passage. In accordance with a second embodiment, the primary and secondary carburetors are configured so that operation of the secondary carburetor is a function of negative pressure in the primary system to remain closed under minimal load conditions.
An air intake device for an internal combustion engine comprising an air inlet, a cylinder having inlet valve means, a primary carburetor receiving air from said air inlet and delivering an air/fuel mixture to a first intake passage coupled to said inlet valve means;
Dependencies are inferred from the claim text.