Hydraulic cylinder life prediction
US7120523B2 · kind B2 · utility
15Cited by
18References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2002 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C3/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Maintenance requirements for hydraulic cylinders used to actuate heavy equipment may be predicted by measuring actual use of the cylinders. Sensors measuring piston position within each cylinder are integrated and the results stored in histograms bins to provide a permanent record of motion. Hydraulic pressure and temperature are also recorded. Data are downloaded periodically and compared with data from laboratory tests and/or from other units in the field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.