| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic valve for an aircraft capable of suppressing an increase in size even if a flow rate of oil in a hydraulic servo mechanism is increased.SOLUTION: A hydraulic valve 20 includes: a first port 31 connected to a first hydraulic chamber of a hydraulic actuator that drives a wing; a second port 32 connected to a selector valve that bypasses the second hydraulic chamber and the first hydraulic chamber of the hydraulic actuator; a housing 30 where an oil passage 37 connecting the first port 31 and the second port 32; a check valve 67 for blocking the oil flow from a first port 31 side to a second port 32 side in the oil passage 37; a valve opening element 40 for opening the check valve 67 by pilot pressure supplied from the second hydraulic chamber; and an auxiliary oil passage 38 as auxiliary hydraulic pressure supply means for taking out the hydraulic pressure for opening the check valve 67 from a closed hydraulic pressure part 37A which is a part on a first port 31 side of the oil passage 37 with respect to the check valve 67.SELECTED DRAWING: Figure 2 |
