| 摘要 |
PURPOSE: A cylinder head structure is provided to effectively disperse an impact load caused by explosive power by forming the cross section of top and bottom water jackets in a tapered shape. CONSTITUTION: A cylinder head structure comprises middle necks(120). The middle necks face each other. An injector mounting unit(110) is formed between the middle necks, and is connected to a combustion chamber. A partition(123) divides the middle necks into top water jackets(121) and bottom water jackets(122). The cross sections of the top and bottom water jackets are tapered. The bottom inner surfaces of the top and bottom water jackets are curved.
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