| 摘要 |
PURPOSE: An air damping engine mount is provided to improve the vibration damping efficiency of an engine by damping the vibration by the flow resistance the air passing a through hole of a separating partition plate and the displacement of a bellows plate due to pressure change of a lower chamber. CONSTITUTION: An air damping engine mount is composed of a main rubber(20), a hollow main pipe(30), a bellows plate(80), and a separating partition plate(60). A center bolt(10) for coupling a vehicle engine is inserted in the main rubber. The main pipe supports the main rubber and is contacted closely to the main rubber. The bellows plate is contacted closely to one end of the main pipe so that a damping chamber(50) is formed in a space between the bellows plate and the main rubber. The displacement is generated by the pressure change in the bellows plate. The separating partition plate is mounted in the damping chamber to be divided into an upper chamber and a lower chamber. The separating partition plate has a through hole(61) to mutually connect the upper chamber and the lower chamber.
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