| 主权项 |
1. A vibration-damping device in which at least one of a first liquid chamber and a second liquid chamber has an elastic body as a portion of a wall surface thereof, the vibration-damping device comprising:
a tubular first attachment member joined to one of a vibration generating unit and a vibration receiving unit; a second attachment member joined to the other of the vibration generating unit and the vibration receiving unit; an elastic body which joins the first attachment member to the second attachment member; and a partition member which partitions a liquid chamber in the first attachment member in which a liquid is sealed into the first liquid chamber and the second liquid chamber, wherein the partition member is formed with a vortex chamber unit through which the first liquid chamber communicates with the second liquid chamber, the vortex chamber unit is provided with an annular vortex chamber, a first communicating section through which the vortex chamber communicates with the first liquid chamber, and a second communicating section through which the vortex chamber communicates with the second liquid chamber, and at least one of the first communicating section and the second communicating section includes a rectifying passage which extends outward in a radial direction from a portion of the partition member which is more inward in a radial direction of the vortex chamber than the vortex chamber and are open at an inner circumferential surface of the vortex chamber which faces the outside in the radial direction in a circumferential direction of the vortex chamber, and the vortex chamber is formed to rotate a liquid flowing into the vortex chamber from the rectifying passage in accordance with a flow velocity thereof. |
