Hydraulic mount having double idle rate dip frequencies of dynamic stiffness
US8157250B2 · kind B2 · utility
2Cited by
17References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Feb 10, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An hydraulic mount providing double idle rate dip frequencies of dynamic stiffness, the idle rate dips being vibration orders of an internal combustion engine corresponding to one and two times firing frequencies. The double idle rate dip is achieved by providing the first idle rate dip at the first vibration order via resonance tuning of the idle inertia track, and providing the second idle rate dip at the second vibration order via additional resonance tuning of a tunable air conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.