Gear box idle lubrication system
US5031725A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2210/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In order to provide lubrication of the bearings (16) and clutch (22) of an output shaft (14), even when the output shaft (14) is driven externally, a gear box (10) has a primary lubrication system (24) for circulating a lubricant (26) from a sump (28) into a lubricating flow path (30). The lubricating flow path (30) extends into and through a cavity (20) containing the bearings (16) and clutch (22) which support the output shaft (14) which is selectively operably interconnectable with a rotary input (12) and the primary lubrication system (24) is operable only with the rotary input (12). In addition to the primary lubrication system (24) for circulating the lubricant (26) from the sump (28) into the lubricating flow path (30), and to ensure lubrication whenever the output shaft (14) rotates, the output shaft (14) includes a pump (32) at one end of the lubricating flow path (30 ) to draw lubricant (26) from the sump (28) to lubricate the bearings (16) and clutch (22) and the pump (32) is adapted to return the lubricant (26) to the sump (28).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.