Fuel-escape prevention device


A fuel-escape prevention device 10 for sealing in the top of a tank 30, which device 10 comprises a first housing component 11 having an evaporation passage 11b and a second housing component 12 fused with the first housing component 11 and containing a float valve member 16 capable of cutting off communication between the tank 30 and the evaporation passage 11b via engagement with a valve hole 12g in a partition 12h between the two housing components 11, 12. The second housing component 12 also includes an external circumferential shoulder 12a passable through a seal 31 upon installation in the tank 30. The float valve member 16 may comprise a disk 16d and a number of ribs 16a to guide it in the second housing component 12. Preferably, a pressure relief valve 20 is provided in the partition 12h. The first housing component 11 may have a lower end of greater diameter fused with a step of reduced diameter on the second housing component 12. Alternatively, the second housing component 12 may include an upper projecting portion of larger diameter fused with a lower part of the first housing component 11.




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Patent Citations (2)

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NO-Patent Citations (0)


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    CN-103459906-ADecember 18, 2013拉瓦尔农业合作社有限公司燃料阀
    EP-0950556-A1October 20, 1999Eaton CorporationFill limiting vent valve for a fuel tank
    RU-2593328-C2August 10, 2016Равал А.К.С. Лтд.Топливный клапан
    US-9434246-B2September 06, 2016Raval A.C.S. Ltd.Fuel valve
    WO-2012123941-A1September 20, 2012Raval A.C.S. Ltd.Soupape de carburant