Means for feeding oil between counterrotating shafts
US4453784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1983 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | May 2, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2210/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Concentric, counterrotating shafts include means for bringing oil from within the inner shaft across an annular gap between the two shafts into oil scoops which rotate with the outer shaft. To minimize the splashing of oil as it travels across the annular gap between the two shafts a plurality of separate, circumferentially spaced apart oil compartments are disposed around the outer circumference of the inner shaft and rotate therewith. Oil from within the inner shaft travels radially outwardly through passageways in the shaft into the oil compartments whereupon the radial velocity of the oil is reduced to zero. The oil leaves the compartment through outlets and is slung across the gap between the shafts whereupon it is captured by oil scoops and is fed to its final destination, such as to a bearing race disposed radially outwardly of the outer shaft. By reducing the radial velocity of the oil to zero after it is passed through the inner shaft and prior to its being slung across the annular gap between the shafts, the amount of splashing of the oil is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.