Method and arrangement to detect an oil leakage between sections of a hydraulic cylinder
US11549528B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2017 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Nov 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is an arrangement and a method to detect an oil leakage between a first section and a second section of a hydraulic cylinder. A movable piston is arranged between the first and second section in a way that the piston changes position between the sections. The change in position is done in dependency of a difference between a first force, which acts at the first section on a first cross sectional area of the piston, and a second force, which acts at the second section on a second cross sectional area of the piston. The first section comprises hydraulic oil with a predefined first pressure, while the first force is calculated based on this pressure and based on the first area. The second section comprises hydraulic oil with a predefined second pressure, while the second force is calculated based on this pressure and based on the second area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.