序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 압력 보상 유니트 및 이를 갖는 가변 용량형 축압 장치 KR1020070137697 2007-12-26 KR1020090069879A 2009-07-01 김근배; 김은정; 이정훈
A pressure compensation unit and a variable capacity type axis-compressing device including the same are provided to keep the charged capacity of working fluid, charged inside an accumulator, regular. A pressure compensation unit comprises: a housing(100) having regular length and a specific internal space; a bellows(120) of regular length connected with the internal space, installed at an one end part of the housing; and a controlling unit compensating for the inside pressure by varying the volume of the internal space of the housing relative to the temperature of the outside.
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