PRINCIPLES OF NAVAL ENGINEERING 



COPPER GASKET 



COOLING WATERi 

 INLET 



-CAMSHAFT 



•CYLINDER HEAD 

 HOLDDOWN NUT 



— CYLINDER HEAD 

 WATER SEAL RING 



WATER FERRULE 



•CYLINDER BLOCK 



CYLINDER LINER 



75.24X 



Figure 22-14.— Principal stationary parts of a cylinder assembly. 



The barrel or bore in which an engine 

 piston moves back and forth may be an in- 

 tegral part of the cylinder block or it may be 

 a separate sleeve or liner. The first type, 

 common in gasoline engines, has the disad- 

 vantage of not being replaceable. Practically 

 all diesel engines are constructed with re- 

 placeable cylinder liners. 



Six cylinder liners of the replaceable type 

 are shown in figure 22-15. These liners il- 

 lustrate some of the differences in the design 

 of liners and the relative size of the engines 

 represented. 



The liners or bores of an internal combustion 

 engine must be sealed tightly to form the com- 

 bustion chambers. In most Navy engines, except 



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