| 摘要 |
PROBLEM TO BE SOLVED: To surely seal a space between a fuel injection valve and a combustion chamber, and prevent temperature up of a nozzle part by inserting the fuel injection valve into a shaft hole part formed on a cylinder head through a cylindrical support member and interposing a seal material between the cylindrical support member and the nozzle part of the fuel injection valve. SOLUTION: A mounting hole 91 is formed on a head main body 8a of a cylinder head 8, a shaft hole part 91a having a small diameter is formed on a combustion chamber 90 side, a seat part 91b is formed on an outside of the shaft hole part 91a, and a cylindrical support member 92 is pressed in. After a nozzle part 13b of a fuel injection valve 13 is inserted into a cylindrical body 92a of the cylindrical support member 92, a fixing part 76a of a fixing metal fitting 76 wherein a push part 76b is locked with a flange part 13a of the fuel injection part 13 is fastened to the head main body 8 by a bolt 77. A seal material 93 such as a disk spring and the like mounted on an outer periphery of the nozzle part 13b is pushed and broken between a support surface 13c of the fuel injection valve 13 and a flange 92b of the cylindrical support member 92, and it is obstructed by the seal material 93 that combustion gas is leaked from the combustion chamber 90.
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