The present invention suppresses an increase in pressure of internally contained lubricating oil and reduces leakage of the lubricating oil. This actuator is provided with: an accumulator which has a gas compartment at the top filled with gas, and in which a lubricating oil is contained under the gas compartment; a housing internally provided with the accumulator; a shaft of which one end side is contained in the housing and another end side is disposed outside the housing, and which is moveable in an axial direction; and an oil seal disposed between a first opening portion which is formed in the accumulator and through which the shaft penetrates, and the shaft. The housing has formed therein a pipe channel providing communication between a space on the side opposite to the inner side of the accumulator with respect to the oil seal and the gas compartment of the accumulator.
ACTUATOR AND AIRCRAFT CONTROL SURFACE DRIVE SYSTEM
2021-02-11
Patent
Electronic Resource
English
AIRCRAFT ACTUATOR, AIRCRAFT ACTUATOR DRIVE METHOD, AND AIRCRAFT ACTUATOR SYSTEM
European Patent Office | 2020
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