Apparatus with hydraulic machine controller
US11555293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2022 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6658
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A prime mover and hydraulic actuators, a hydraulic machine having a rotatable shaft engaged with the prime mover and having a plurality of working chambers, a hydraulic circuit extending between a group of working chambers of the hydraulic machine and the hydraulic actuators, each working chamber of the hydraulic machine having a low-pressure and a high-pressure valve regulating the flow of hydraulic fluid between the working chamber and a corresponding low-pressure manifold and a high-pressure manifold. The hydraulic machine controlling the low-pressure valves of the group of working chambers to select the net displacement of hydraulic fluid by each working chamber on each cycle of working chamber volume, and thereby the net displacement of hydraulic fluid by the group of working chambers, responsive to a demand signal, the apparatus further having a controller calculating the demand signal responsive to a measured property of the hydraulic circuit or an actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.