Vibration damping device
US10760641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2224/025
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A restricted passageway (24) is provided with a first communication part (26) which is formed in a first barrier wall (34) facing a first liquid chamber and opens to the first liquid chamber, a second communication part (27) which is formed in a second barrier wall (35) facing a second liquid chamber and opens to the second liquid chamber, and a main body flow path (25) that is configured to cause the first communication part (26) and the second communication part (27) to communicate with each other. At least one of the first communication part (26) and the second communication part (27) includes a plurality of fine holes (26a) that pass through the first barrier wall (34) or the second barrier wall (35). A vortex chamber (29) is disposed in a connection portion with at least one of the first communication part (26) and the second communication part (27) on the main body flow path (25), figured to form the swirling flow of a liquid depending on a flow velocity of the liquid from the other of the first communication part (26) and the second communication part (27), and is configured to cause the liquid to flow out through the fine holes (26a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.