| 摘要 |
A fluid pump for pumping fluidized materials comprises a motor, a material pump, and a closed-loop pressure hydraulic system interconnecting the motor and the material pump. The closed-loop hydraulic system further comprises a hydraulic pump, a pressure regulator, an impeller, and an expandable fluid reservoir. The motor includes an output to drive the hydraulic pump, which pumps hydraulic fluid throughout the closed-loop hydraulic system. As the hydraulic fluid flows throughout the closed-loop system, it passes through the impeller, which in turn drives the material pump to deliver the fluidized material from a material reservoir to an outlet valve for dispensing the material.
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