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Patent Searching and Data


Title:
FUEL TANK VENTING CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2019/142464
Kind Code:
A1
Abstract:
A fuel tank venting control valve (3) is provided in a venting passage which provides communication between the inside and outside of a tank (2). The fuel tank venting control valve is provided with a float (54) which floats on the surface of fuel and moves vertically. The fuel tank venting control valve is provided with a valve mechanism (23) which moves in coordination with the float and switches the passage cross-sectional area of the ventilation passage between an open state and a restricted state in which the passage cross-sectional area is more restricted than in the open state. The float has, between the float and a third case (53), a volume chamber (61) having a volume which changes in size in coordination with the vertical movement of the float. A control gap (67) serving as a flow rate regulation mechanism is formed between a cylindrical wall (54a) of the float and a cylindrical wall (53c) of the case. The control gap causes the volume chamber to function as a damper.

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Inventors:
SUGIYAMA Akinari (C/O KYOSAN DENKI CO. LTD, 11-3, Okazat, Koga-city Ibaraki 06, 〒3060206, JP)
MUKASA Yuusuke (C/O KYOSAN DENKI CO. LTD, 11-3, Okazat, Koga-city Ibaraki 06, 〒3060206, JP)
TADOKORO Takuya (C/O TOYOTA JIDOSHA KABUSHIKI KAISHA, 1 Toyota-ch, Toyota-shi Aichi 71, 〒4718571, JP)
Application Number:
JP2018/041571
Publication Date:
July 25, 2019
Filing Date:
November 09, 2018
Export Citation:
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Assignee:
KYOSAN DENKI CO., LTD. (11-3, Okazato Koga-city Ibaraki, 06, 〒3060206, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
International Classes:
F02M37/00; B60K15/035; F02M25/08; F16K24/00; F16K31/22
Foreign References:
JP2001254650A2001-09-21
JP2006200469A2006-08-03
JP2008247157A2008-10-16
JP2000034958A2000-02-02
Attorney, Agent or Firm:
JIN Shunji (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-k, Nagoya-city Aichi 03, 〒4600003, JP)
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