Valve timing in electronically commutated hydraulic machine
US11649727B2 · kind B2 · utility
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3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jan 28, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2205/13
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronically commutated hydraulic machine is coupled to a drivetrain. Working chambers of the hydraulic machine are connected to low and high pressure manifold through electronically controlled valves. The phase of opening and closing of the valves has a default. In order to avoid cycle failure due to acceleration events, for example due to backlash in the drivetrain, the phase of opening or closing of the electronically controlled valves is temporarily advanced or retarded from the default timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.