| 摘要 |
The conventional screw coupling between cylinder head and liner is reinforced externally by the addition of a number of bolts arranged around the circumference of the head and extending parallel with the longitudinal axis of the head through a distance whereby at least the threads of the screw coupling are entirely compassed; each bolt is accommodated by a relative socket incorporated into the head casting, secured with a relative nut and torqued in such a way as to tension the section of the head surrounding the coupling.
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