Title:
PRESSURE CONTROL VALVE AND SUPERCRITICAL FLUID CHROMATOGRAPH
Document Type and Number:
WIPO Patent Application WO/2017/130316
Kind Code:
A1
Abstract:
A pressure control valve of the present invention is provided with a pressure control block. The pressure control block has: an opening that is provided in one outer surface; a pressure control surface that is provided as a flat surface at a bottom portion of the opening; and two internal flow channels, each of which has an end portion opening in the pressure control surface. In the opening of the pressure control block, a sheet-like elastic valve body is provided, said valve body being disposed to cover the pressure control surface. On the side opposite to the pressure control surface with the valve body therebetween, a valve body drive unit is provided, said valve body drive unit adjusting a gap amount between the valve body and the pressure control surface by pressing the valve body to the direction perpendicular to the pressure control surface. The pressure control surface has a hardness that is higher than that of hard materials.
Inventors:
KORA CHIHIRO (JP)
OKADO TAKAO (JP)
OWA MICHIAKI (JP)
IWATA YOSUKE (JP)
OKADO TAKAO (JP)
OWA MICHIAKI (JP)
IWATA YOSUKE (JP)
Application Number:
PCT/JP2016/052304
Publication Date:
August 03, 2017
Filing Date:
January 27, 2016
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
F16K7/16; F16K25/00; G01N30/32
Domestic Patent References:
| WO2015029252A1 | 2015-03-05 |
Foreign References:
| JP2014520250A | 2014-08-21 | |||
| JPH09292039A | 1997-11-11 |
Attorney, Agent or Firm:
NOGUCHI Shigeo (JP)
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