FILTRATION DEVICE FOR HEAVY FUEL OIL FOR MARINE DIESEL ENGINE

WIPO Patent Application WO/2012/057182

A1

Provided is a filtration device for heavy fuel oil for a marine diesel engine, capable of reliably collecting solid impurities mixed in the fuel and capable of being produced at reduced cost. Filters (5) vertically provided within a tank body (1) each comprise: a cylindrical frame body (10) for reinforcement; and a cylindrical filter element (11) fitted around the outside of the frame body (10) for reinforcement. The filter element (11) is configured by forming filtration holes (11A) in a thin cylindrical seamless nickel film. The filtration holes (11A) expand in a horn shape from the outside toward the inside of the filter element (11). In a filtration operation, the fuel is supplied from a fuel inlet opening (2) and the fuel is filtered as the fuel flows from the outside toward the inside of the filter element (11). In the reverse washing of the filter (5), solid impurities are removed by causing the fuel to flow into the filter (5) from a fuel discharge opening (4) and causing the fuel to reversely flow from the inside toward the outside of the filter element (11).

TANIGAKI Tadaaki (3-10-8, Miyamaedaira Miyamae-ku, Kawasaki-sh, Kanagawa 06, 〒2160006, JP)

JP2011/074626

May 03, 2012

October 26, 2011

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TANIGAKI SHOKAI CO., LTD. (1-18-2, Shimbashi Minato-k, Tokyo 04, 〒1050004, JP)
株式会社谷垣商会 (〒04 東京都港区新橋一丁目１８番２号 Tokyo, 〒1050004, JP)
AGUA JAPAN Co., Ltd. (1-22-5, Nishishimbashi Minato-k, Tokyo 03, 〒1050003, JP)

F02M37/22; B01D24/42; B01D24/44; B01D29/11; B01D29/50; B01D29/66; B01D29/90; B01D29/92; B01D29/94; B01D35/02; B01D39/20

INTECT INTERNATIONAL PATENT OFFICE et al. (Sunline 7th Bldg. 4F, 4-7-2 Kojimachi, Chiyoda-k, Tokyo 83, 〒1020083, JP)

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