Hydromechanical torque transmission device
US4748810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Aug 28, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2037/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydromechanical torque transmission device comprises three coaxial rotatable bodies. These are a driving body, an intermediary body and a driven body. The driving and driven bodies are adapted to be coupled to respective coaxial shafts that are to be coupled together in rotation. A speed correlator system is adapted to maintain the speeds of the driving and driven bodies relative to the intermediary body in a predetermined ratio. The intermediary body comprises a hydraulic circuit. The driving and intermediary bodies define a first pump adapted to cause a flow of fluid in this hydraulic circuit. The intermediary and driven bodies define a second pump also adapted to cause a flow of fluid in the hydraulic circuit. One at least of the first and second pumps has a variable volumetric capacity. The device also comprises means for controlling variations in this variable volumetric capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.