| 摘要 |
A fuel tank, for a vehicle or heating plant, includes a flexible air container therein, forming a fuel space outside the air container. The air container seals the interior of the fuel tank to the exterior and the fuel vapors in the fuel tank are drawn off and directed into the engine and burned. The vapors can be so drawn off by the vacuum produced by the engine, or by a pump. Fresh air from the exterior is drawn into and through the air container and directed into the fuel mixture for combustion, clearing out any vapors that may have collected in the air container. A filter is controllably utilized for adsorbing, or absorbing the vapors, and fresh air is controllably drawn into the filter for clearing those vapors out and directing them into the fuel mixture for combustion.
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