Patent ID: 9249857
Filing Date: 2016-02-02
CPC Classification: F16F

Claim Text:
1. An anti-vibration apparatus comprising: a cylindrical first mounting member connected to one of a vibration generating portion and a vibration receiving portion; a second mounting member connected to the other of the vibration generating portion and the vibration receiving portion; a first rubber elastic body for elastically connecting the first and the second mounting members to each other; and a dividing member that divides an inner part of the first mounting member into a primary liquid chamber in which a liquid is sealed by making the first rubber elastic body a part of a first partition wall and an inner volume thereof is changed due to the deformation of the first rubber elastic body and a secondary liquid chamber in which a second partition wall is formed in a deformable manner and the liquid is sealed; wherein between an outer peripheral surface of the dividing member and an inner peripheral surface of the first mounting member, an orifice passage for linking the primary liquid chamber with the secondary liquid chamber is formed and the liquid is sealed in the primary liquid chamber and the secondary liquid chamber, the liquid contains a first liquid and a second liquid that are mutually insoluble, the second liquid having a higher vapor pressure and a lower weight percentage included in the liquid than those of the first liquid, and the liquid, includes 20 wt % or less of the second liquid such that the second liquid is dispersed into a plurality of places in the first liquid in a state in which the second liquid is separated from the first liquid, when receiving a vibration.