Rotational coupling device with integrated rotor and brake disc
US8978854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | May 30, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/0214
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotational coupling device is provided with an integrated rotor and brake disc to simplify design of the device and remove liquids from the device when used in a wet environment. The rotor is configured for rotation about a rotating hub and includes a first member defining one pole of the rotor and a second member defining a second pole of the rotor and a braking surface. The second member is coupled to the first member, but axially movable relative to the first member. During clutch engagement, an electromagnetic circuit used to engage the clutch urges the second member into engagement with the first member for rotation. When the clutch is disengaged, the second member disengages from the first member to create a fluid flow path between the members and engages a brake plate to halt rotation of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.