Diesel engines for land and marine work . 284 CONSTRUCTION OF DIESEL MARINE ENGINE 285 short levers, and necessitates the employment of the longvertical (or nearly vertical) hollow connecting rods seen in the. bD c illustration. It may be mentioned that this method has beenadopted by some other manufacturers in their four-cycleengines, and notably Messrs. Krupp, who do not, however, 286 DIESEL ENGINES FOR LAND AND MARINE WORK build large engines of this type. When this design is em-ployed, it is of the utmost importance that the connectingrods should be rigid, as their motion is so slight for
Diesel engines for land and marine work . 284 CONSTRUCTION OF DIESEL MARINE ENGINE 285 short levers, and necessitates the employment of the longvertical (or nearly vertical) hollow connecting rods seen in the. bD c illustration. It may be mentioned that this method has beenadopted by some other manufacturers in their four-cycleengines, and notably Messrs. Krupp, who do not, however, 286 DIESEL ENGINES FOR LAND AND MARINE WORK build large engines of this type. When this design is em-ployed, it is of the utmost importance that the connectingrods should be rigid, as their motion is so slight for openingthe valves that any small amount of play is most undesir-able and will lead to some trouble. Lack of attention tothis point has already been the cause of much difficulty insome engines. From the illustrations it can be seen how the shorthorizontal valve levers are arranged for operating the valves,and it will be noticed that all the valves open downward,this being exceptional for the fuel inlet valve, which usuallyopens upwards. The former method somewhat simplifiesthe construction and apparently gives good results asregards efficiency. In the earlier pages, the general means of reversing Diesel
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