Pig. 2. Cross section of engine SULZER S20

1 - oil (deep) sump; 2 - big-end bearing; 3 - cylinder liner; 4 - camshaft; 5 - piston; 6 - fuel injection pump; 7 - fuel injection nozzle; 8 - exhaust system; 9 - exhaust valve; 10 - lub oil cooler; 11 -connecting rod; 12 - engine block; 13 - crankshaft; 14 - main bearing cap; 15 - main bearing; 16 -crankcase opening; 17 - tic-rods (horizontal)

ihreisi face (flat, rateed edge)

fillet t»dh»

Fig. 3. Connecting rod design

exhaust valve

hausing water space

piston skirt' piston cooling oil inwater jacket

Fig. 4. Combustion camber

Vatve pocket area bowl

Iron band

Ring grooves

Snap ring groove

Semislipper skin

Fig. 5. View of mink-type piston design

ring lands

Fig.6. View of mink-type piston design

Typical valvespecifications a - intake: A - valve seating angle (30°);

В - valve seating width (0.055 to 0.069 mm); C- valve seat angle (29°); D - valve head minimum thickness (0.035 in), valve head depth in relation to cylinder head face (minimum permissible, 0.023 in).

b - exhaust: E - valve seating width (0.097 to 0.110 in); F- valve seating angle (45°); G - valve head minimum thickness (0.035 in), valve head depth in re-lation to cylinder head face (minimum permissible, 0.041 in.)

valve-spring retainer я*

cylinder-head cap screw washer injector seal seal

valve-spring seat adjusting screw locknut ^crosshead crosshead guide valve-stem guide ^expansion plug pipe plug groove pin

expansion plug valve-seat insett-< exhaust valve

•cylinder head

intake valve insert intake valve grommeis

Read gasket

Fig 7 Exploded view of К Model cylinder head components (Cummins engine) connecting-rod journals

upper-main-bearing halves (shells)

thrust bearings

^-»-— inruiii ocanngs |

crankshaft gear

^Wr^ «D ^

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journal hoteT"^¹"^"'""¹"^ _ balance

inimriL - ••—> »w« • J.Jiiir-. t> „.-МП I^M watiaUfcC

ffi Ъ ^ЦНЛЬ 'sb ^^

towr-main-bearing halves (shells)

Fig. 8. Crankshaft

partly open fully open (plot spray)

DELAY NOZZLE

Fig.15 Spray patterns ofvariousnozzle types

1.Exhaust (outlet) valve;

2.Exhaust gases;

3-Exhaust manifold;

4.Gas turbine wheel

5.Gas outlet; 6.Air inlet;

7.Air compressor impeller;

8.Air cooler;

9. Induction manifold;

10Cooled compressed air

11 .Inlet (admission) valve.

Fig. 16. Turbocharging system on 4-stroke engine.

Fig. 17. Parts of a small turbocharde.

turbine wheel

Fig. 18. ВВС turbocharger components

Liquid seal and flushing water supply

Top disc

Disc slack

Sludge port

Drain valve

Dosing ring chamber

Closing and make-up waler supply

Opening water supply