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1. 发明公开

EP0056347A2 Low noise level internal combustion engine 失效
标题翻译： Brennkraftmaschine mit niedrigemGeräuschpegel。
公开(公告)号：EP0056347A2
公开(公告)日：1982-07-21
申请号：EP82400034.3
申请日：1982-01-08
申请人： NISSAN MOTOR CO., LTD.
发明人： Kikuchi, Kazuhiro , Ishibashi, Hideo
IPC分类号： F02F7/00 , F16C9/02 , F16M1/02
CPC分类号： F16C9/02 , F02F7/0053 , F02F7/008 , F16M1/02
摘要： An internal combustion engine (10) comprises a cylinder block having a skirt section (14), main bearing bulkheads (16), each bearing bulkhead being formed with a bearing section (16a) for receiving a crankshaft and including an upper part (16b) located above the level of the crankshaft axis, and a lower part (16c) located below the crankshaft axis level; and a main bearing cap (20) securely connected to each bearing bulkhead for being associated with the bulkhead bearing section (16a) so as to rotatably support the crankshaft.
The engine is characterized by a damping member (26) made of a material which is of high damping capacity and oil- and heat-resistance, the damping member being disposed between the bearing bulkhead lower part (16c) and the bearing cap (20).
The invention is useful for effectively damping the vibration of the bearing cap (20) in order to achieve noise reduction of the I cylinder block skirt section.
摘要翻译：内燃机（10）包括具有裙部（14）的气缸体，主轴承隔板（16），每个轴承隔板形成有用于接收曲轴并包括上部（16b）的轴承部分（16a）位于曲轴轴线的高度以上，下部（16c）位于曲轴轴线水平面以下; 以及主轴承盖（20），其牢固地连接到每个轴承隔板以与隔板支承部分（16a）相关联，以便可旋转地支撑曲轴。该发动机的特征在于由阻尼能力高且耐油和耐热的材料制成的阻尼件（26），阻尼件设置在轴承隔板下部（16c）和轴承盖（20）之间，。本发明对于有效地阻尼轴承盖（20）的振动是有用的，以便实现气缸体裙部的噪音降低。

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