| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a blow-by gas reducing device capable of restraining oil from flowing out in an intake pipe via an oil return pipe for returning the oil to a crankcase from an oil separator, even if an oil liquid level in the crankcase abnormally rises. <P>SOLUTION: Blow-by gas exhausted from an engine 1 is recirculated to the intake pipe 13 of the engine 1 after separating the oil by the oil separator 11. A float valve 16 is arranged in the oil return pipe 15 for returning the oil separated by the oil separator 11 to the crankcase 6. The oil liquid level in the crankcase 6 abnormally rises, and when the oil enters the oil return pipe 15, a float of the float valve 16 floats on the oil liquid level and closes the oil return pipe 15, to thereby restrain the oil from flowing out in the intake pipe 13 via the oil return pipe 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
