Title:
FLOAT DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/052647
Kind Code:
A1
Abstract:
Provided is a float device wherein the number of parts is reduced and buoyancy can be controlled with high precision during both ascent and descent. The float device comprises a float housing (11) having buoyancy, a motor (41) installed in the float housing (11), a plunger (44) which makes reciprocating motions according to the rotation of the motor (41), an oil tank (50) which contains operating oil, a cylinder (71) which is fitted in the housing (11) and opens to the outside, a buoyancy adjusting piston (72) which makes reciprocating motions in the cylinder (71) as operating oil comes in and goes out, a first connection opening (61a) which is connected to the plunger (44), a second connection opening (61b) which is connected to the oil tank (50), and a third connection opening (61c) which is connected to the cylinder (71). The float device is provided with a three-way valve (61) which switches between the flow connection between the first connection opening (61a) and the second connection opening (61b) and the flow connection between the first connection opening (61a) and the third connection opening (61c).
Inventors:
WATANABE, Kazuhiro (())
渡辺 和博 (())
SHIKAMA, Nobuyuki (())
渡辺 和博 (())
SHIKAMA, Nobuyuki (())
Application Number:
JP2010/069089
Publication Date:
May 05, 2011
Filing Date:
October 27, 2010
Export Citation:
Assignee:
The Tsurumi Seiki Co., Ltd. (2-2-20, Tsurumi-Chuo Tsurumi-ku, Yokohama-sh, Kanagawa 51, 〒2300051, JP)
株式会社鶴見精機 (〒51 神奈川県横浜市鶴見区鶴見中央２丁目２番２０号 Kanagawa, 〒2300051, JP)
JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY (2-15, Natsushima-cho Yokosuka-sh, Kanagawa 61, 〒2370061, JP)
独立行政法人海洋研究開発機構 (〒61 神奈川県横須賀市夏島町２番地１５ Kanagawa, 〒2370061, JP)
WATANABE, Kazuhiro (())
株式会社鶴見精機 (〒51 神奈川県横浜市鶴見区鶴見中央２丁目２番２０号 Kanagawa, 〒2300051, JP)
JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY (2-15, Natsushima-cho Yokosuka-sh, Kanagawa 61, 〒2370061, JP)
独立行政法人海洋研究開発機構 (〒61 神奈川県横須賀市夏島町２番地１５ Kanagawa, 〒2370061, JP)
WATANABE, Kazuhiro (())
International Classes:
B63B22/08
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (1-12-9 Toranomon, Minato-k, Tokyo 01, 〒1050001, JP)
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