| 摘要 |
<p>PROBLEM TO BE SOLVED: To restrict the suction of air.SOLUTION: An oil suction device comprises: a first suction pipe 30 including a connection 30b connected to an oil suction pipe 26 and an opening 30a opened in an oil storage chamber; a buoyancy closing plate 31 provided in the opening 30a of the first suction pipe 30 so as to be movable between an opening side expanding a channel of the opening 30a and a block side contracting the channel; a flap plate 32 provided in the connection 30b of the first suction pipe 30 so as to be movable between the opening side expanding a channel of the connection 30b and the block side contracting the channel; a second suction pipe 40 including a connection 40b connected to the oil suction pipe 26 and an opening 40a opened in the oil storage chamber; a buoyancy closing plate 41 provided in the opening 40a of the second suction pipe 40 so as to be movable between the opening side expanding a channel of the opening 40a and the block side contracting the channel; and a flap plate 42 provided in the connection 40b of the second suction pipe 40 so as to be movable between the opening side expanding a channel of the connection 40b and the block side contracting the channel.</p> |
