Variable displacement pumps with fixed and active displacement control modes
US12421956B2 · kind B2 · utility
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15References
20Claims
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Key dates
| Filing date | Dec 5, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jun 28, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system includes a variable displacement pump (VDP) having a pump inlet, a pump outlet, and a pump control line configured to receive a control pressure to actuate a variable displacement mechanism of the VDP. A controller is operatively connected to the pump control line to actively control actuation of the variable displacement mechanism in a first mode for variable displacement pumping and in a second mode for fixed displacement pumping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.