| 摘要 |
PURPOSE: An engine mount is provided to improve ride comfort by damping vibration of an engine via a float in an orifice. CONSTITUTION: An engine mount comprises a liquid chamber(10), a partition(23), a connecting member(25), an upper case(30), an elastic member(35), a diaphragm(40), a combining member(45), an air chamber(50), and a float(80). When an engine vibrates slightly, the float member in a third orifice(70) formed in the center of the partition moves upwardly and downwardly. Then, vibration of the engine is damped. If the engine vibrates excessively, the float member moves upwardly and downwardly and the third orifice is closed. Flow of liquid between main and subsidiary liquid chambers(13,15) through the third orifice is restrained. Therefore, the liquid flows between the main liquid chamber and the subsidiary liquid chamber via first and second orifices(60,65) of the partition. Therefore, vibration of the engine is damped.
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