| 摘要 |
Disclosed herein is a fluid circuit in which a compressible fluid and an incompressible fluid flow in a mixed state including an upstream side space and a downstream side space in which internal pressures repeatedly alternate between high pressure and low pressure, and a pump unit having an inlet connected to the upstream side space and an outlet connected to the downstream side space. The pump unit has two check valves arranged in series in a direction in which fluid movement is allowed from the upstream side space to the downstream side space, and a middle part, having a predetermined capacity, formed between the check valves.
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