Honda Motor Co., Ltd.
VIBRATION DAMPING DEVICE FOR VEHICLE

Abstract:

A vibration damping device for a vehicle includes: a first attachment member attached to a first member; a second attachment member attached to a second member; a first liquid chamber and a second liquid chamber configured to change volumes according to relative displacement between the first attachment member and the second attachment member; and an orifice passage configured to cause a liquid to flow between the first liquid chamber and the second liquid chamber according to changes in the volumes of the first liquid chamber and the second liquid chamber. The liquid contains a non-Newtonian fluid whose viscosity decreases as a shear rate increases, the orifice passage includes a first communication port communicating with the first liquid chamber and a second communication port communicating with the second liquid chamber, and an opening area of the first communication port is different from an opening area of the second communication port.