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公开(公告)号：US20200166148A1
公开(公告)日：2020-05-28
申请号：US16637608
申请日：2018-12-03
Applicant: KYB Corporation
Inventor： Takeshi TERAO , Atsushi FUJII , Nobuyoshi YOSHIDA
Abstract: A valve device includes a relief valve configured to be opened when a pressure in a fluid pressure circuit reaches a predetermined pressure and to relieve a working fluid, a tank passage connected to a tank, a main relief passage connecting the relief valve and the tank passage, and a sub relief passage branching from the main relief passage and connected to the tank passage separately from the main relief passage.
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