Title:
Aircraft flood valve
Document Type and Number:
Japanese Patent JP6368610
Kind Code:
B2
Abstract:
An aircraft hydraulic valve (20) includes a housing (30), a check valve (67), a valve opening component (40), and an auxiliary hydraulic pressure supply mechanism (38). The housing includes a first port (31) communicated with a first chamber (11A) of a hydraulic actuator (11), a second port (32) communicated with a switch valve (15) bypass-communicating a second chamber (11B) of the hydraulic actuator with the first chamber (11A), and an oil channel (37) connecting the first and second ports. The check valve interrupts oil flow from the first port to the second port. The valve opening component is configured to open the check valve with pilot pressure supplied from the second chamber. The auxiliary hydraulic pressure supply mechanism obtains hydraulic pressure, for opening the check valve, from a closed hydraulic pressure section (37A), which is defined in the oil channel between the check valve and the first port.
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Inventors:
Koji Ito
Application Number:
JP2014202912A
Publication Date:
August 01, 2018
Filing Date:
October 01, 2014
Export Citation:
Assignee:
Nabtesco Co., Ltd.
International Classes:
B64C13/40; F16K15/18
Domestic Patent References:
| JP6144385A | ||||
| JP1312204A | ||||
| JP1312205A |
Foreign References:
| US3943968 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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