UNDERWATER ACTUATOR AND UNDERWATER VEHICLE INCLUDING THE SAME

An underwater actuator includes: a housing to be immersed under water; a cylinder chamber formed in the housing; a piston accommodated in the cylinder chamber so the piston is movable in a sliding manner in the cylinder chamber, the piston dividing the cylinder chamber into a first and a second pres...

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Bibliographic Details
Main Authors OKADA, Takashi, TACHINAMI, Fumitaka, SAKAUE, Hiroshi, MUKAIDA, Minehiko, OKAYA, Noriyuki
Format Patent
LanguageEnglish
Published 06.09.2018
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Summary:An underwater actuator includes: a housing to be immersed under water; a cylinder chamber formed in the housing; a piston accommodated in the cylinder chamber so the piston is movable in a sliding manner in the cylinder chamber, the piston dividing the cylinder chamber into a first and a second pressure receiving chambers; a rod extending from the piston to the first pressure receiving chamber side, the rod penetrating the housing; a release chamber formed in the housing, having an internal pressure kept lower than a water pressure outside of the housing; and a switching mechanism including: a first switcher configured to switch a communication state between the second pressure receiving chamber and the outside of the housing to allow or block communication therebetween; and a second switcher configured to switch a communication state between the second pressure receiving chamber and the release chamber to allow or block communication therebetween.
Bibliography:Application Number: US201615759351