Diesel engines for land and marine work . exhaust from all the cylinders of the engine deliversinto a common D shaped pipe and thence to a silencer,whilst the atmospheric air is drawn into the cylindersthrough horizontal inlet slotted pipes, as seen in the illustra-tion, this being a slight modification from usual practicewhere vertical inlet pipes are employed. This is the general design adopted for motors up to about1,500 , but in some recent engines of 2,000 modifications have been carried out. Engines of thispower are made with six cylinders, having a bore of 740mm. (29 in
Diesel engines for land and marine work . exhaust from all the cylinders of the engine deliversinto a common D shaped pipe and thence to a silencer,whilst the atmospheric air is drawn into the cylindersthrough horizontal inlet slotted pipes, as seen in the illustra-tion, this being a slight modification from usual practicewhere vertical inlet pipes are employed. This is the general design adopted for motors up to about1,500 , but in some recent engines of 2,000 modifications have been carried out. Engines of thispower are made with six cylinders, having a bore of 740mm. (29 inches) and a stroke of 1,100 mm. (43-4 inches),and run at a normal speed of 100 The main pointof difference lies in the method of supporting the cyUnders,for in the larger engines instead of having a continuousframing, made of four pieces and bolted together, thereis an A frame of very heavy construction over eachbearing, and the cylinder jackets of the six cylinders arecast in pairs of three each with feet which are bolted direct. Sale of Metns Fig. 155.—Section of Six-Cylinder Burmeistar & Wain2,000 Marine Engine. 288 CONSTRUCTION OF DIESEL AIARINE ENGINE 289 to the top of the A framing. In the front of the engine,Hght doors are fitted between the standards ^^•hich are oil-tight (since forced lubrication is adopted as with the othermotors), but are readily removable so that the engine,when they are taken away, is practically of the open the upper portions of the standards, however,stiffening pieces are bolted to which the crossheads guidesare fixed, and, moreover, there are steel columns runningright through from the bottom of the bed-plate to thecylinder covers through the cyUnder jackets, which serveto support the cylinder head. On theto23 of the A standarda light cover is fitted to the cylinder through which thepiston rod passes by means of a suitable gland. There isa tray fixed in this cover so that any lubricating oil droppingfrom the piston
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkdvannostran
