| 摘要 |
<p>Provided is a float valve device wherein the lifting action of a float valve body can be reliably guided and the up-suction of fuel that has flowed into a housing from a through-hole can be prevented. This float device comprises a housing (20) provided with a valve chest (34) and a draft chamber (35) that have disposed therebetween a partition (33) having an opening (33a), and a float valve body (60) that is disposed within the valve chest (34) so as to be liftable. A plurality of housing side guide ribs (37) are provided in the upper part of the valve chest (34) on the inner periphery thereof. Float side guide ribs (67) are provided to the lower part of the float valve body (60) on outer periphery thereof, and are formed to a length that will not interfere with the housing side guide ribs (37) when the float side guide ribs (67) come into contact with the opening (33a). A wide gap region (C) is provided between the housing side guide ribs (37) and the float side guide ribs (67), and through holes (36) that communicate with the interior of a fuel tank are formed in the wide gap region (C) of the housing (20).</p> |
