| 摘要 |
PROBLEM TO BE SOLVED: To prevent lubricant lubricating a joint mutually connecting two crankshafts from being mixed into gas on a crank mechanism part side. SOLUTION: A rotation-reciprocation device connects two parallel crankshafts 3, 5 by gears 29, 31 in such a manner that the same can rotate in mutually reverse direction at one-to-one speed ratio. A gear chamber 11 holding the gears 29, 31 and a crank chamber 9 provided with the crank mechanism are set hermetically by a bulkhead 13 and sealed. Lubricant 32 is filled in the gear chamber 11. COPYRIGHT: (C)2009,JPO&INPIT |
