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摘 要：直列四缸四冲程发动机由于其自身结构特点，在运转时其二阶往复惯性力不能自身平衡，由此给发动机带来较大的振动。因此，根据OEM的要求，在发动机上增加双轴平衡机构以降低二阶往复惯性力对发动机振动的影响。本文介绍了一种双轴平衡机构应用于某四升直列四缸四冲程柴油机上的试验研究成果，研究结果表明：双轴平衡机构可以有效地降低直列四缸四冲程柴油机的振动；同时，还可以降低匹配的车辆驾驶室内振动和噪声。
关键词：直列四缸四冲程发动机；二阶往复惯性力；双轴平衡机构；振动与噪声
中图分类号：U464.133 文献标识码：A 文章编号：1005-2550（2015）03-0062-05
Abstract： As structural features of inline four-cylinder four-stroke engine， the second order reciprocating inertia forces can’t be balanced by itself while running. The forces bring large engine vibration. Therefore， biaxial balance mechanism is to be added onto the engine to reduce the vibration caused by the unbalanced forces according as OEM’s requirement. This paper introduced a sort of biaxial balance mechanism applied to 4L inline four-cylinder four-stroke diesel engine. Test results showed biaxial balance mechanism can effectively reduce the vibration level of inline four-cylinder four-stroke diesel engine， and then noise
关键词：直列四缸四冲程发动机；二阶往复惯性力；双轴平衡机构；振动与噪声
中图分类号：U464.133 文献标识码：A 文章编号：1005-2550（2015）03-0062-05
Abstract： As structural features of inline four-cylinder four-stroke engine， the second order reciprocating inertia forces can’t be balanced by itself while running. The forces bring large engine vibration. Therefore， biaxial balance mechanism is to be added onto the engine to reduce the vibration caused by the unbalanced forces according as OEM’s requirement. This paper introduced a sort of biaxial balance mechanism applied to 4L inline four-cylinder four-stroke diesel engine. Test results showed biaxial balance mechanism can effectively reduce the vibration level of inline four-cylinder four-stroke diesel engine， and then noise