Sound damping armature assembly for an electromagnetic coupling
US6194803A · kind A · utility
12Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Feb 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53161
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic clutch in which an annulus of sound dampening material is sandwiched between an armature disc and a hub assembly, particularly a web portion thereof. The annulus and web coact to define a constrained-layer damping system for reducing noise when the armature disc is snapped into engagement with the rotor of the clutch, slipping prior to lockup, while the armature is magnetically locked to the rotor, and also during slipping and disengagement of the armature disc. The design provides a reduced axial-length package relative to prior armature assemblies incorporating constrained-layer techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.