TANK INNER PRESSURE CONTROL SYSTEM FOR AUTOMOBILE
PURPOSE:To reduce discharge of a gasoline vapor during oil feeding and being left for a long time. CONSTITUTION:When an engine is stopped for oil feeding just after travel of a vehicle, a temperature sensitive valve 7 and a one directional valve 6 are closed. As an intake pipe negative pressure duri...
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Sprache: | eng |
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Zusammenfassung: | PURPOSE:To reduce discharge of a gasoline vapor during oil feeding and being left for a long time. CONSTITUTION:When an engine is stopped for oil feeding just after travel of a vehicle, a temperature sensitive valve 7 and a one directional valve 6 are closed. As an intake pipe negative pressure during travel is left in a diaphragm chamber 9 of a tank inner pressure controlling valve 3, a valve 14 is left open for a while and an inner pressure of a fuel tank is low. When the vehicle is left as it is after oil feeding, an engine temperature is gradually lowered and the valve 14 is closed gradually. Therefore, a fuel tank inner pressure is increased. |
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