Damper device
US10323716B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 25, 2015 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Feb 28, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2045/0268
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damper device includes first inner springs configured to transmit a torque between a drive member and an intermediate member, second inner springs configured to transmit a torque between the intermediate member and a driven member, and a rotary inertia mass damper including a sun gear serving as a mass body rotating with relative rotation of the drive member to the driven member. The rotary inertia mass damper is provided in parallel to a torque transmission path including the intermediate member, the first inner springs and the second inner springs. A damping ratio ζ of the intermediate member determined based on a moment of inertia J2 of the intermediate member and rigidities k1 and k2 of the first and the second inner springs and is less than a value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.