| 摘要 |
PURPOSE:To prevent leakage of evaporated gas through a pot, by a method wherein the base side of a fuel retaining cylinder, the upper part side thereof, and the forward end of a return pipe are inserted into a fuel stowing part, a fuel filtrating part, and the fuel stowing part, respectively. CONSTITUTION:A fuel stowing cylinder 16 is provided with a fuel stowing part 17 having a lower half part on the base side, most of which is made of a metallic plate, and a fuel filtrating part 18 having a peripheral surface which is formed by a filterating mesh on the upper side thereof. A return pipe 20 runs from the bottom side surface of a pot 4, the return pipe 20, extending through a base plate 2, is interposed in the fuel retaining cylinder through an opening part at the upper end of the fuel retaining cylinder 16, and the forward end of the pipe 20 is placed within the fuel retaining part 17. This causes the opening at the forward end of the return pipe 20 to be normally held in a closed condition irrespective of the amount of fuel (a) in a fuel storing part 15. This permits evaporating gas in the pot 4 to be prevented from being leaked to the outside through the return pipe 20. |
