| 摘要 |
An oil filtering device disposed at a position apart from a crankshaft in a crankcase. An oil filtering device 24 is constituted in that a filter storage 34 formed in a left half case body 1a of a crankcase 1 contains a filter element 37, and a lid 47 of a filter flange 46 is fitted in an opening 36 of the filter storage 34. An extension part 48 extending outward from the lid 47 is formed in the filter flange 46, and the filter flange 46 has a communication passage 53 inside. Then, an oil passage 57 communicating with the tip of a crankshaft 16 is formed in a crank cover 1b. A connection part 50 formed on the tip of the extension part 48 of the filter flange 46 is fitted in a flange connection part 58 which communicates with the oil passage 57. Oil is supplied to the tip of the crankshaft 16 from the oil filtering device 24. The filter flange 46 is supported by the left half case body 1a and the crank cover 1b.
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