Patent ID: 8042564
Filing Date: 2011-10-25
Classification: B60K,F16K,Y10T

Abstract:
1. A fuel cutoff valve that is mounted on an upper wall of a fuel tank, and opens and closes a connecting passage to connect the fuel tank and outside, as well as to connect with a valve mechanism, the fuel cutoff valve comprising: a casing having (i) a valve chamber that connects the fuel tank and the connecting passage, (ii) a first pipe line that is connected to the valve mechanism and situated above the connecting passage, (iii) a second pipe line that is connected to the outside and situated above the connecting passage, (iv) an outside-communicating chamber that is situated in a space above the valve chamber and connect the connecting passage, the first pipe line and the second pipe line with each other, a float mechanism housed to be able to rise and fall in the valve chamber and adapted to open and close the connecting passage according to a fluid level in the fuel tank, wherein the casing includes a closure plate that is disposed in the outside-communicating chamber and in a facing arrangement with the connecting passage, the closure plate being configured to include (i) a vent hole that is formed to divert a passage of the outside-communicating chamber, connecting between the connecting passage and the second pipe line, and (ii) a barrier wall that is situated in a facing arrangement with the first pipe line and that is formed to divert a passage of the outside-communicating chamber, connecting between the first pipe line and the second pipe line, and the vent hole is arranged facing the barrier wall and situated to direct liquid fuel and fuel spray outflowing from the first pipe line towards the valve chamber.