| 摘要 |
PROBLEM TO BE SOLVED: To prevent storage oil in a crank chamber from intruding into negative pressure operation chambers of a negative pressure actuator even if an engine is overturned with a negative pressure output port facing down. SOLUTION: In the negative pressure actuator device of the engine connected with the negative pressure operation chambers 44, 45 of the negative pressure actuator V with an upper part space of the crank chamber 2a of the engine E via a negative pressure conduit 57, an end of the negative pressure conduit 57 is connected with the negative pressure output port 56 arranged at one side of the crank chamber 2a, the negative pressure actuator V is connected with the other end of the negative pressure conduit pipe 57. The negative pressure actuator V is arranged above the crank chamber 2a at an opposite side of the negative pressure output port 56 across an oil level of the storage oil O in the crank chamber 2a when the engine E is overturned with the negative pressure output port 56 facing down. COPYRIGHT: (C)2010,JPO&INPIT
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