Method for balancing a propeller shaft
US4724708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Jul 28, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This method is for balancing a propeller shaft which includes a slide type constant velocity joint which has an internal cavity for receiving lubricant. In the specified order: first, the slide type constant velocity joint is slid in to substantially the maximum amount possible therefor, so as to reduce its internal cavity to substantially its minimum volume; second, lubricant is packed into this internal cavity to a fill ratio of substantially 100%, while the constant velocity joint remains thus substantially fully slid in; and, third, while the constant velocity joint still remains thus substantially fully slid in, the propeller shaft is balanced. Thereby, unbalance of the propeller shaft due to the lubricant such as grease received in the internal cavity of the constant velocity joint becoming collected preferentially on one side of the internal cavity during the balancing process is positively prevented. Optionally, during the packing process and/or the balancing process the slide type constant velocity joint may be held by a clamp in its maximum slid in state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.