FUEL SYSTEM HAVING VENT POINT VALVE
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United States of America Patent
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Sep 28, 2017
filing date -
Mar 29, 2015
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Abstract
A fuel tank system includes a fuel tank, a liquid trap and a tank venting assembly. The fuel tank defines a first vapor space and a second vapor space. The tank venting assembly includes a vent valve, a first vent line, a second vent line and a third vent line. The vent valve can have a movable member that is configured to move between a first open position wherein a front vent point is open and a second closed position wherein the front vent point is closed. The first vent line can be fluidly connected between the liquid trap and the vent valve. The second vent line can be fluidly connected between the vent valve and an auxiliary vent point. The third vent line can connect to an upper vent point. In a closed position, the auxiliary vent point and the upper vent point remain open and vented.
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