Title:
MULTIPLE VALVE DEVICE AND CARGO HANDLING DEVICE EQUIPPED WITH MULTIPLE VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/044526
Kind Code:
A1
Abstract:
Provided are a multiple valve device that enables the discovery of contaminants mixed into a working fluid, and a cargo handling device equipped with this multiple valve device. The multiple valve device (10) is provided with: a priority flow dividing valve (12) for dividing a working fluid into a priority flow and an excess flow and discharging the divided flows; a first line (L1) in which the priority flow flows; a second line (L2) in which the excess flow flows; a throttle unit (20) provided on the first line (L1) and/or the second line (L2); a first pressure gauge (22) for measuring the pressure of the working fluid on the upstream side of the throttle unit (20) in the first line (L1) and the second line (L2); and a control unit (26) for determining, from the pressure value of the first pressure gauge (22), that a contaminant has mixed into the working fluid.
Inventors:
KAKIO MASAFUMI (JP)
Application Number:
PCT/JP2019/034646
Publication Date:
March 11, 2021
Filing Date:
September 03, 2019
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
F15B21/041; F15B11/16; F15B20/00
Foreign References:
| JP2003095121A | 2003-04-03 | |||
| JPH0651508U | 1994-07-15 | |||
| JPS62105318U | 1987-07-04 | |||
| JP2003130012A | 2003-05-08 | |||
| JPH02227110A | 1990-09-10 |
Attorney, Agent or Firm:
KUSUMOTO, Takayoshi et al. (JP)
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