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аутекология
Содержание
- 1. аутекология
- 2. A slow speed or medium speedDiesel engine is a high pressure propulsion plantwith internal combustion.
- 3. sV-engine and in-line engine In a V-engine
- 4. Trunk engine Crosshead engine PISTON CRANK SPISTON X CRANKPIN
- 5. s2-stroke crosshead engine
- 6. The cylinder is filled with air.SDuring the compression stroke the air in the cylinder is compressed.cylinder
- 7. The atomizer (1)sprays the fuel into the
- 8. During the
- 9. The piston makes a reciprocating motion.Piston
- 10. 123The crosshead (1) serves as a
- 11. SThe crank (1)is connected to the crankshaft (2).12Crankshaft
- 12. SThe crank changes
- 13. SGearwheelsto drive the camshaft are driven by chains (“chaindrive”).camshaft
- 14. SThe campeak is fixed to the camshaft.campeakcampeak
- 15. sThe push rod (1)may be used as
- 16. SThe exhaust valve (1) is actuated (opened) by the rocking lever (2) (rocker arm).21
- 17. SThe exhaust valveis actuated (closed)by theexhaust valve spring (1).1
- 18. SThe scavenging air manifold (1)andscavenging ports (2)supply the scavenging airto remove theexhaust gases.1 2
- 19. SCROSSSCAVENGINGLOOPSCAVENGINGUNIFLOWSCAVENGING
- 20. SThe cylinder liner (1)and cylinder jacket (2)form the cylinder wall.12Cooling the cylinder:
- 21. A coolant (fresh water)is injected betweenliner and jacketto cool the cylinder.sCooling the cylinder:
- 22. sCooling the piston:The advantages of oil as
- 23. SOThe piston rings (1)form a
- 24. s4-stroke cycle
- 25. SDuring the air induction stroke(or inlet stroke,
- 26. SDuring thecompression strokethe air in the cylinder is compressed.Compression stroke
- 27. SDuring the power strokefuel is injected and burnt.Power stroke
- 28. SDuring theexhaust strokethe exhaust gases aredriven out of the cylinder by the piston.Exhaust stroke
- 29. Скачать презентанцию
A slow speed or medium speedDiesel engine is a high pressure propulsion plantwith internal combustion.
Слайды и текст этой презентации
Слайд 3s
V-engine and in-line engine
In a V-engine the cylinders are
placed in an oblique (or bevel) position, unlike the in-line
engine, where the cylinders are placed “in line”.V-engine
In-line
engine
Слайд 6
The cylinder is filled with air.
S
During the compression stroke the
air in the cylinder is compressed.
cylinder
Слайд 7
The atomizer (1)
sprays the fuel into the cylinder.
The nozzle
divides
the fuel into
small particles.
1
atomizer
Tip of the atomizer
(nozzle).
Слайд 8 During the
power stroke the fuel is injected and burnt.
This actuates the piston (1) and connecting rod (2). 1
2
Слайд 10
1
2
3
The crosshead (1) serves as a hinging connection between
piston rod (2) and connecting rod (3).
Crosshead guides and
crosshead
guide shoes (4)absorb the forces onto
the crosshead when the
piston goes down.
4
Слайд 12 S
The crank
changes the
reciprocating motion
of the
piston into a
rotary motion
of the crank shaft .
Слайд 18S
The scavenging air manifold (1)
and
scavenging ports (2)
supply the
scavenging air
to
remove the
exhaust gases.
1
2
Слайд 20S
The cylinder liner (1)
and cylinder jacket (2)
form the cylinder wall.
1
2
Cooling
the cylinder:
Слайд 21
A coolant (fresh water)
is injected between
liner and jacket
to cool the
cylinder.
s
Cooling the cylinder:
Слайд 22s
Cooling the piston:
The advantages of oil as
a coolant are:
.
it reduces noise;
. it purifies;
. it forms a seal;
. it
lubricates;. it is anti-corrosive;
. it has a higher resistance
to heat.
The piston is cooled by oil.
Слайд 23 SO
The piston rings (1)
form a seal around the
cylinder and
carry away the heat.
1
Piston rings
Слайд 25S
During the
air induction stroke
(or inlet stroke,
or suction stroke)
air
is drawn into
the cylinder.
Suction stroke
Слайд 28S
During the
exhaust stroke
the exhaust gases are
driven out of
the cylinder
by
the piston.
Exhaust stroke
