| 摘要 |
A tank venting system which avoids soiling of the negative pressure protection valve which can cause problems in functional capability. The negative pressure protection valve is preceded by the intake air filter of the engine, so that with the negative pressure protection valve opened, a pressure equalization between the atmosphere and the tank venting system takes place by means of intake air filtered by the intake air filter. The tank venting system according to the invention is used to vent a fuel tank of a mixture-compressing internal combustion engine with externally supplied ignition.
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