Title:
FLOWMETER-EQUIPPED PUMP, AND METHOD FOR CONTROLLING FLOW RATE THROUGH PUMP
Document Type and Number:
WIPO Patent Application WO/2016/185815
Kind Code:
A1
Abstract:
This flowmeter-equipped pump is provided with a pump main body, a flowmeter main body, and a control unit. A flow path of the flowmeter main body is provided with a laminar flow region capable of causing a fluid to flow in a laminar-flow state. The flowmeter main body is configured so as to be capable of measuring the pressure difference between the flow pressure at a first pressure-measurement position located upstream in the flow direction in the laminar flow region, and the flow pressure at a second pressure-measurement position located downstream in the flow direction in the laminar flow region. The control unit is configured such that at least the pressure difference between the first and second pressure-measurement positions is used to specify the flow rate of the fluid flowing through the laminar flow region, and control a drive mechanism such that said flow rate corresponds to or approaches a set flow rate.
Inventors:
SHIBATA MASATOSHI (JP)
KOJIMA KENTARO (JP)
KOJIMA KENTARO (JP)
Application Number:
PCT/JP2016/061119
Publication Date:
November 24, 2016
Filing Date:
April 05, 2016
Export Citation:
Assignee:
SIBATA SCIENT TECH LTD (JP)
International Classes:
F04B43/02; F04B45/04; G01F1/34
Foreign References:
| JP2004124928A | 2004-04-22 | |||
| JPS54140564A | 1979-10-31 | |||
| JPS5837516A | 1983-03-04 | |||
| JPS512453A | 1976-01-10 | |||
| JP2009299871A | 2009-12-24 |
Attorney, Agent or Firm:
KISARAGI ASSOCIATES (JP)
きさらぎ国際特許業務法人 (JP)
きさらぎ国際特許業務法人 (JP)
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