Hydraulically-driven double-acting mud pump
US10612531B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2017 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jul 19, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B17/05
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a hydraulically-driven double-acting mud pump, comprising power motors, pressure oil pumps, a three-position four-way hydraulically-actuated directional valve, a hydraulic power end and a mud pump head, the power motors being connected to the pressure oil pumps in a conventional way, the pressure oil pumps being communicated with a port P of the three-position four-way hydraulically-actuated directional valve via a pipeline, a port T of the three-position four-way hydraulically-actuated directional valve being communicated with an oil tank via a pipeline, a port A and a port B of the three-position four-way hydraulically-actuated directional valve being both connected to the hydraulic power end, the hydraulic power end being connected to the mud pump head in a conventional way, a lower end of the mud pump head being communicated with a low-pressure manifold and two sides of the mud pump head being communicated with a high-pressure manifold. The hydraulically-driven double-acting mud pump of the present invention allows for more stable instantaneous flow and pressure of the discharged liquid from the mud pump and reduced fluctuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.