Gear unit lubrication
US7214157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Mar 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19991
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear unit includes a planet gear rotatable about a sun gear and supported by a planet carrier, the planet carrier including an annular formation for flow of lubricant and which is substantially concentric with the major axis about which the planet carrier is rotatable, and the gear unit including a housing having at least one lubricant supply position provided at a position radially aligned with the annular formation of the planet carrier as considered relative to the major axis about which the planet carrier rotates, and the planet carrier including flow paths for flow of lubricant from the annular formation to a planet gear bearing. The invention also discloses a method of lubricating a gear unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.