Electromagnetic synchronizing and shifting clutch
US5052534A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Oct 30, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2023/0643
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic clutch includes a fixed field shell with a multiple turn coil, a rotor rotatable with and slidable along a splined input shaft, and a rotatable armature disposed in axially opposing relation with the rotor. An internally splined locking ring is coupled to rotate with the armature and is supported to rotate with and slide along a splined output shaft. When the coil is first energized, the armature is drawn into engagement with the rotor by magnetic flux and acts through the locking ring to cause the output shaft to rotate at substantially the same speed as the input shaft. Thereafter, the magnetic flux causes the rotor and the armature to move axially as a unit toward the field shell so as to shift the locking ring into meshing engagement with the input shaft and thereby couple the output shaft for rotation with the input shaft via the splined coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.