Patent ID: 6928987

Claim:
A nozzle fixing structure which fixes a fuel injection nozzle used in an engine having a cylinder block and a cylinder head, the nozzle fixing structure comprising: a nozzle pressing arm which fixes a fuel injection nozzle positioned above a combustion chamber of the engine to the cylinder head, the nozzle pressing arm comprising a through hole; a fixing bolt which is passed through the through hole in the nozzle pressing arm and tightened to the cylinder head in order to fix the nozzle pressing arm above the cylinder head; and a cylinder head bolt which is passed through the cylinder head and tightened to the cylinder block in order to fix the cylinder head to the cylinder block, an upper end of the cylinder head bolt supporting the nozzle pressing arm and constituting a pivot part for the nozzle pressing arm; wherein the nozzle pressing arm comprises: a pressing part formed on one side of the through hole, the pressing part causing a load to act on the fuel injection nozzle in an axial direction of the fuel injection nozzle when the fixing bolt is tightened to the cylinder head; and a supported part formed on another side of the through hole, the supported part being supported by the upper end of the cylinder head bolt, and the supported part constituting the pivot part for the nozzle pressing arm together with the upper end of the cylinder head bolt.