Crankshaft chain wheel and installation structure of crankshaft chain wheel

• Main Authors: HARA YOSHIKAZU, MIYASHIRO HIROKI, MANABE KAZUYOSHI
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides a crankshaft sprocket capable of suppressing transmission of vibration and a mounting structure of the crankshaft sprocket. The crankshaft sprocket according to the present invention is attached to one axial end side of a crankshaft of an internal combustion engine and around which a timing chain is wound, and is characterized in that: the crankshaft sprocket is provided with a sprocket base and a damping resin layer formed on the inner peripheral surface or tooth surface of the sprocket base; the vibration-damping resin layer contains a heat-resistant resin and a vibration-damping filler that converts vibration energy into heat energy. 本发明提供能够抑制振动的传递的曲轴链轮及曲轴链轮的安装结构。本发明的曲轴链轮安装于内燃机的曲轴的轴向的一端侧且供正时链条卷绕，其特征在于，上述曲轴链轮具备链轮基体和形成在上述链轮基体的内周面或齿面上的减振树脂层，上述减振树脂层包含耐热性树脂和将振动能转换为热能的减振填料。