VALVE AND COMBUSTION-TYPE POWER TOOL

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PROBLEM TO BE SOLVED : To provide a valve capable of automatically adjusting a gas injection quantity by a simple structure, and to provide a combustion-type power tool. SOLUTION : The valve 12 which receives supply of fuel from a gas being attached thereto and injects the fuel to a combustion chamber of a placing machine has a measuring cap 14A which stores the fuel supplied from the fuel container and is provided with a measuring chamber inner surface defining a measuring chamber 15a for storing a fixed amount of fuel to be injected to the combustion chamber. The measuring cap 14A has a recess 14b and a resin sheet 14C which is a portion of the measuring inner surface and seals the recess 14b. A rare gas is sealed in the closed recess 14b to increase or decrease the internal capacity of the measuring chamber 15a according to a drop or rise of atmospheric temperature. COPYRIGHT : (C)2013, JPO&INPIT