Title:
LIQUID PRESSURE CALIBRATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/142892
Kind Code:
A1
Abstract:
A liquid pressure calibration apparatus, a first liquid path (200) and a second liquid path (300) having different pressure output ranges being arranged in parallel between a liquid pressure introduction port (A) and a liquid pressure output port (B) of the liquid pressure calibration apparatus; the pressure output range of the first liquid path (200) is continuous with the pressure output range of the second liquid path (300); a target pressure to be output is compared with a switching pressure; the first liquid path (200) or the second liquid path (300) is selected to supply pressure to the liquid pressure output port (B) according to the comparison result; and the target pressure is output.
Inventors:
GAO HONGJUN (CN)
DONG FENGSHAN (CN)
LIU QING (CN)
SU XINAN (CN)
ZHANG CHUNYING (CN)
JI WEI (CN)
WANG GANG (CN)
CAI XIAOXIA (CN)
JIANG XIAOHUI (CN)
WAN CHUNHUI (CN)
LI YINDE (CN)
SUN YANWEI (CN)
DONG FENGSHAN (CN)
LIU QING (CN)
SU XINAN (CN)
ZHANG CHUNYING (CN)
JI WEI (CN)
WANG GANG (CN)
CAI XIAOXIA (CN)
JIANG XIAOHUI (CN)
WAN CHUNHUI (CN)
LI YINDE (CN)
SUN YANWEI (CN)
Application Number:
PCT/CN2022/144152
Publication Date:
August 03, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
BEIJING CONST INSTRUMENTS TECH INC (CN)
International Classes:
F15B13/02; F15B3/00; F15B19/00; G01L25/00
Foreign References:
| CN114483695A | 2022-05-13 | |||
| CN114459677A | 2022-05-10 | |||
| CN107063563A | 2017-08-18 | |||
| CN212409956U | 2021-01-26 | |||
| CN107764476A | 2018-03-06 | |||
| CN201852675U | 2011-06-01 | |||
| GB859090A | 1961-01-18 |
Attorney, Agent or Firm:
CHINABLE IP (CN)
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