Lubricating structure of friction engaging device
US6968934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2004 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Feb 9, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0484
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lubricating structure of a friction engaging device including a rotating drum which is a cylindrical rotating body, around a perimeter of which there is provided a friction member, and which is engaged with/disengaged from a predetermined coupling member via the friction member; and a ring gear which is spline-coupled to an inner surface of the rotating drum and which is positioned while contacting an inward flange that is integrally provided with the rotating drum. In the lubricating structure, a centrifugal oil passage which is formed between the ring gear and the inward flange, and which introduces lubricating oil inside the rotating drum to a spline-coupled portion of the ring gear and the rotating drum by centrifugal force, and a plurality of through holes which are formed in the rotating drum and through which the lubricating oil, that has flowed into the spline-coupled portion, flows to an outside of the rotating drum where the friction member is provided are formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.