Patent ID: 6901943
Filing Date: 2005-06-07
Classification: B60K,F16K,Y10T

Abstract:
1. An apparatus for inhibiting fuel from flowing out of fuel tanks, the apparatus comprising: a housing fixed to a top of a fuel tank, and having an evaporator opening communicating with a canister, wherein a major-diameter major through-hole is formed in a side surface of the housing, and the major-diameter major through-hole communicates the inside of the housing with the outside of the housing, and the major-diameter major through-hole has an opening width that is sharply reduced from wide to narrow in the direction from a bottom thereof to a top thereof, such that filling-up of the fuel tank with the liquid fuel is detected through an increase in gas pressure within the fuel tank when the level of the liquid fuel within the fuel tank is adjacent to the top end of the major-diameter major through-hole; and a floating valve accommodated in the housing, wherein the floating valve floats on a liquid fuel, and moves up and down in accordance with up-and-down movements of a level of the liquid fuel to open or close the evaporator opening, wherein the evaporator opening is closed with the floating valve when the level of the liquid fuel rises abnormally.