| 摘要 |
PROBLEM TO BE SOLVED: To intend to reduce engine noise, by suppressing vibration transmitted from a cylinder block to an oil pan. SOLUTION: An oil pan 6 is mounted through a sealing elastic unit 5 in a bottom part of a cylinder block 1, and also this oil pan 6 is supported on an upper part of the cylinder block 1 by connection members 11 with its one end mounted on an upper part of the cylinder block 1 and the other end mounted in the oil pan 6. The upper of the cylinder block 1 is so smaller in vibration level than other parts that noise is reduced because of decrease of vibration transmitted to the oil pan 6 through the connection members 11. A mounting point on an upper part side of the cylinder block 1 of the connection members 11 is preferably set to a node of the vibration in the upper part of the cylinder block 1.
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