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US 6,662,786 B2Granted
Vapor separator for outboard motor
AssigneeYamaha Marine Kabushiki Kaisha
InventorHitoshi Watanabe
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AssigneeYamaha Marine Kabushiki Kaisha
InventorHitoshi Watanabe
Estimating the term…
An engine for an outboard motor includes an engine body and at least one piston, together defining a combustion chamber. An air intake system is arranged to introduce air to the combustion chamber. The intake system includes an intake conduit extending along the engine body. A fuel injection system also is arranged to spray fuel for combustion in the combustion chamber. The fuel injection system includes a vapor separator that contains the fuel and removes vapor from the fuel. The vapor separator is disposed between the engine body and the intake conduit. The vapor separator has a drainage mechanism to drain the fuel and an atmosphere introduction mechanism to introduce atmosphere that replaces a volume of the drained fuel. The atmosphere introduction mechanism has an operating member that has an axis along which the operating member moves. The axis preferably does not intersect with the intake conduit.
An internal combustion engine for an outboard motor comprising an engine body, a moveable member moveable relative to the engine body, the engine body and the moveable member together defining at least one combustion chamber, an air intake system communicating to the combustion chamber, the intake system including an intake conduit extending along at least part of the engine body, and a fuel delivery system arranged to deliver fuel to the combustion chamber, the fuel delivery system including a vapor separator that contains a volume of fuel, the vapor separator being disposed between the engine body and the intake conduit, the vapor separator having a drainage mechanism and an atmosphere introduction mechanism, the atmosphere introduction mechanism comprising an operating member, the operating member being adapted to move along an axis that does not intersect with the intake conduit.
An internal combustion engine for an outboard motor comprising an engine body, a member moveable relative to the engine body, the engine body and the member together defining at least one combustion chamber, a fuel injection system arranged to spray fuel for combustion in the combustion chamber, the fuel injection system including a vapor separator that contains a volume of fuel, the vapor separator having a drainage mechanism, and an atmosphere introduction mechanism, the atmosphere introduction mechanism being manually operable to introduce purge air to replace fuel.
Dependencies are inferred from the claim text.