| 摘要 |
A vapor separator in an outboard machine which can continuously inject an accurate and stable fuel toward an intake pipe without sucking bubbles discharged from a pump chamber in a high pressure fuel pump and bubbles within the vapor separator by the high pressure fuel pump, structured such that a filter (2) is arranged in a bottom portion (1A) of a fuel pump receiving case (1), an upstream chamber (10) of the filter (2) is connected to a vapor separator (V) via a fuel inflow passage (1C), a fuel inflow passage (PA) of a high pressure fuel pump (PH) received and arranged within the fuel pump receiving case (1) is connected to a downstream chamber (5) of the filter (2), a vapor discharge chamber (9) is formed so as to face to a bottom portion (PF) of the high pressure fuel pump (PH), a vapor discharge port (PE) of the high pressure fuel pump (PH) is open to the vapor discharge chamber (9), the vapor discharge chamber is communicated with an annular chamber (11) formed by an outer periphery (PG) of the high pressure fuel pump (PH) and an inner periphery (1E) of the fuel pump receiving case (1), and the annular chamber (11) is communicated with a portion below and close to a fixed liquid surface (X-X) of the vapor separator (V) via a vapor discharge passage (1P).
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