Constant value method for detecting and evaluating internal leakage of hydraulic cylinder and detection device thereof
US12092135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2024 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Jan 9, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/864
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A constant value method for detecting and evaluating internal leakage in a hydraulic cylinder and a detection device. The method comprises: step (1) measuring an accurate pressure drop value Δp of the internal leakage in the hydraulic cylinder; step (2), determining whether the detected hydraulic cylinder meets a standard: if the product of the accurate pressure drop value Δp of the internal leakage in the hydraulic cylinder and a corresponding hydraulic stroke L, is less than a standard parameter C for evaluating the internal leakage in the hydraulic cylinder, the internal leakage in me hydraulic cylinder meets the standard. Otherwise, the internal leakage in the hydraulic cylinder does not meet the standard. The detection device comprises a motor, a hydraulic pump, a directional valve, a detected part, a pipeline disassembly joint and a pressure sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.