Differential-speed-controlled transmitting coupling
US6299538A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D43/284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling for transmitting torque between two parts which are rotatable relative to one another, which coupling comprises a friction coupling whose friction plates are each non-rotatably connected to the one and to the other of the parts which are rotatable relative to one another, having a pressure chamber which is filled with a highly viscous fluid and which is formed by a housing formed in one of the rotatable parts and by a displaceable piston sealed relative to said housing, and having a pump unit in which there rotates a conveying member connected to the other one of the rotatable parts, wherein a reservoir for a highly viscous fluid is provided in the housing, which reservoir is connected to the pump unit, wherein the pressure chamber is supplied by the pump unit and the piston loads the friction coupling and wherein the pump unit is provided in the form of an internally toothed rotor pump and the conveying member forms an externally toothed rotor which is concentrically connected to the other one of the parts which are rotatable relative to one another, and wherein an internally hollow gear constitutes a runner which is eccentrically supported and is dragged along by the e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.