| 摘要 |
<p>A suction-limiting check valve for a crankcase ventilating line which is connected to the engine intake downstream of the carburetor, the valve having two valve devices arranged for parallel operation, each including a spring-biased diaphragm which closes against a valve mouth at a predetermined level of negative pressure, one valve mouth being much smaller than the other to produce an earlier reopening of that valve device under elevated suction on the outlet side of the valve.</p> |
