| 摘要 |
<p>Device (2) has ventilation line (20). Plate valve (3) operating as quick-acting valve is provided in the course of the ventilation line. Depending on the gas pressure from both sides of the plate valve, a gas flow is allowed in the direction from the crank case (11) to the suction tract (12) and the gas flow is blocked in the direction from the suction tract to the crank case .</p> |
