Rotational coupling device with improved lubrication
US8881882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Feb 9, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/0214
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotational coupling device having improved lubrication is provided. The device includes a hub disposed about a rotational axis. A rotor is supported on, and configured for rotation about, the hub and defines a radially extending wall and a chamber on one side of the wall surrounding said hub and defining a sump containing a fluid. An armature is supported on the hub for rotation therewith within the chamber and axially spaced from the wall. Clutch plates are disposed between the rotor wall and armature and rotatably coupled to the rotor or armature. A field shell is disposed on an opposite side of the rotor wall from the armature and houses a conductor. One or more tubes have an end submerged in the fluid and extend through apertures in the armature. Rotation of said armature draws fluid through the tubes and onto the clutch plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.