| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for feeding fluid, stably feeding the fluid to a place under high pressure exceeding 100 MPa, by suppressing pulsation and constantly controlling the fluid to an optional flow rate. SOLUTION: In the method for feeding the fluid by constantly controlling a discharge flow rate by the use of a reciprocating pump feeding the fluid to the place under high pressure, a pressure loss generating mechanism composed of a capillary tube or an orifice is provided on the discharge side of the pump to measure anteroposterior differential pressure, the flow rate is calculated from the pressure loss, the discharge flow rate of the pump is constantly controlled based on data, and pulsation is suppressed, thereby the fluid is stably fed. COPYRIGHT: (C)2008,JPO&INPIT
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