Mechanical damper for air pad instability
US7023952B2 · kind B2 · utility
14Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Oct 3, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2316/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a diagnostic imaging apparatus, a stationary gantry (24) and a rotating gantry (22) are interfaced by a plurality of air bearing elements (40). Lower air bearing elements bear the weight of the rotating gantry (22) which induce air hammering phenomena at a characteristic vibration frequency. To counteract the air hammering, a damping assembly (44) is mounted to at least one lower bearing element (40). The damping assembly (44) includes a damping mass (46) and an elastomeric connector (48) that are tuned to a frequency near the air hammer frequency to absorb the vibrational energy and damp the air hammer vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.