| 摘要 |
<p>PROBLEM TO BE SOLVED: To compensate a pressure surely even in a pollutable installation area by holding a case cap on the filter element fixed to the connection member for compensating pressure, in the pressure compensating valve, provided on a fuel tank, for flowing in the outer air by opening at the generation time of a negative pressure. SOLUTION: This pressure compensation valve 10 installed on the tank wall 4 of a tank, in which the power fuel for a working machine such as a power chain saw is stored, is composed of a combined valve 1 covered by the filter element 2 for carrying a case cap 3. A spot faced part 5 opened to the outside is provided in the tank wall 4. The combined valve 1 is stored in the storage 7 provided on the center of the bottom 6 of the spot faced part 5. The dome shape filter element 2 is inserted in the connection member 20 of the tank wall and the case cap 3 having an air duct 40 on its oneside is supported so as to be placed to the cut head conical end 32.</p> |
