| 摘要 |
PURPOSE: A flywheel having variable inertia according to an operation state of an engine is provided to improve a car performance and an NVH(Noise-Vibration-Harshness) by improving response of the engine and to improve a continued ratio. CONSTITUTION: A flywheel having variable inertia according to an operation state of an engine includes a first flywheel mass body(3), a space part(7), a second flywheel mass body(4), a slider(10), a weight body(11), and a return spring(12). The first flywheel mass body is connected to a rear end of a crank shaft(2). The space part has a long rectangular section to extend in a diameter direction through the center from an outer surface of the first flywheel mass body, and a central portion communicating with a main oil supply hole(9) of the crank shaft. The second flywheel mass body is mounted on an outer surface of the first flywheel mass body to prevent communication between the space part and the outside, and serves as a cover of the space part. The slider slides in a radial direction by oil pressure when oil is introduced from the main oil supply hole to the center of the space part. The weight body is hold by the slider. The return spring elastically pushes the slider in a central direction against the oil pressure.
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