| 摘要 |
PURPOSE: A cylinder base block, a cylinder head block, and a liner assembly structure are provided to reduce the strength of a part where a notch unit is formed as the notch unit is placed near a seat with bolts. CONSTITUTION: A cylinder base block, a cylinder head block, and a liner assembly structure comprise a cylinder base block(10) and a liner. The base block comprises a seat(14) at the corner of a bore(12) and a top surface(16), and a plurality of female screws(18) are formed around the bore. As to the liner, a flange is formed on the upper outer periphery, and settled on the seat to guide a piston. A notch unit(100) is formed lower than the surface of the seat.
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