| 摘要 |
A pressure equalization system serves to prevent an undesired pressure level in a fuel tank of an internal combustion engine. An air/fuel mixture is fed to the internal combustion engine via the carburetor. The carburetor is, on one hand, connected to the clean air side of an intake air filter via an intake channel and, on the other hand, inducts fuel from a control chamber filled with fuel. This fuel flows from a fuel tank via an inlet valve into the control chamber, with the inlet valve being controlled by a control membrane. A start-assist device includes an intake line connected to the control chamber and a return line connected to the fuel tank. A pressure equalization valve connected to the return line of the start-assist device is provided for the fuel tank, with the pressure equalization valve also being connected to the intake channel.
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