Arrangement for bearing lubrication and cooling of a hydrodynamic coupling
US5323610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Jun 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Arrangement for effective oil supply to a working chamber in a hydrodynamic coupling flushed through with oil, and lubrication of the bearings of the coupling. The working chamber is supplied with oil through a channel in the stationary part of the coupling via a main bearing forming part of the coupling and bearing the turbine in the pump wheel. A second main bearing bearing the pump wheel in the stationary part receives a continuously limited throughflow of lubricating oil via a throttle in communication with the flow of oil to the first main bearing. By means of the invention, a steady flow of oil to the working chamber of the coupling is obtained, and at the same time all the main bearings receive a continuous throughflow of lubricating oil which does not cause any great oil friction losses in the bearings during stationary running. The invention is advantageously applied to hydrodynamic couplings in internal combustion engine units of the compound type, where a turbine driven by exhaust gas transmits surplus energy from the exhaust gases via the coupling to the crankshaft of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.