Lubricant retaining valve for universal joint
US5660589A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85938
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cross member for a universal joint includes a body portion having at least one trunnion extending radially outwardly from the body portion, the trunnion including an outer bearing surface. A bearing cup having an open end and an inner bearing surface is mounted on the trunnion such that the inner bearing surface of the bearing cup is disposed co-axially about the outer bearing surface of the trunnion. A bearing is disposed between the inner bearing surface of the bearing cup and the outer bearing surface of the trunnion to enable rotation of the trunnion relative to the bearing cup. A trunnion bore is positioned within the trunnion and it communicates with the bearing to enable lubricant within the trunnion bore to reach the bearing. A lubrication conduit communicates with the trunnion bore to supply a lubricant to the trunnion bore. A retention valve is positioned within the lubrication conduit for preventing drainback of the lubricant within the lubrication conduit. The retention valve includes a valve body extending along a portion of the length of the conduit, with the valve body having an outer surface approximately the same size as the inner surface of the lubrication condu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.