Apr 11, 1998 ... TDI diesel engine. EURO 2. Volkswagen AG, Wolfsburg. Volkswagen AG
reserves the right to introduce amendments or corrections at any time.
Volkswagen industrial engine AFD
1 02.97
Specifications for Volkswagen Industrial Engine AFD
1.9 ltr. TDI diesel engine EURO 2
Volkswagen AG, Wolfsburg
Volkswagen AG reserves the right to introduce amendments or corrections at any time without any obligation to implement these on engine already delivered. K-VSI 1961
Industrial Sales
04.11.98
Volkswagen industrial engine AFD
2 Characteristic curves (89/491/EEC) 02.97
Control unit 028 906 021 CS "Coding 01"
210
64
200
60
190
56
180
52
170
48
160
44
150
40
140
36
130
32
120
28
110
24
100
20
90
16
80
12
70
8
60
4
50
0
P red. kW
Tq. red. Nm
1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
3500
Engine speed / rpm
K-VSI 1961
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04.11.98
Volkswagen industrial engine AFD
3 Characteristic curve (89/491/EEC) 02.97
Control unit 028 906 021 CS "Coding 02"
210
64
200
60
190
56
180
52 P red. kW
Tq red. Nm
170
48
160
44
150
40
140
36
130
32
120
28
110
24
100
20
90
16
80
12
70
8
60
4
50
0
1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
4 Technical Data 02.97
Manufacturer’s declaration in accordance with Article 4, Paragraph 2 in conjunction with Appendix II, Section B of Directive 89/392/EEC in the version 93/44/EEC
Note The engine described is intended for installation in a machine in the sense of the EC Machines Guidelines. It is not permitted to take this engine into operation until it has been demonstrated that the machine into which this engine is to be installed complies with the stipulations of the EC Machines Guidelines (89/392/EEC, last amended by 93/44/EEC).
Introduction The Volkswagen industrial engine with the engine code AFD is a 1.9-litre watercooled 4-cylinder in-line diesel engine with direct injection, exhaust gas turbocharger and intercooler. With the numerous different areas of application for this engine, the notes on the following pages should be studied carefully prior to the development of new machines. This is to ensure problem-free operation and a long service life for the entire machine, under all operating conditions. Design:
Direct valve control via toothed-belt-driven overhead camshaft (ohc). Maintenance-free valve drive via hydraulic tappets. Distributor-injection pump electronically governed by control unit and driven by toothed belt.
Displacement Bore / stroke Compression ratio Firing sequence Output
cm3 mm
1896 79.5 / 95.5 19.5 : 1 1-3-4-2
(with IMO control unit part No. 028 906 021 CS )
Coding 01: Nmax at 3300 rpm Tmax at 1800 rpm upper idle lower idle
Charge pressure (overpressure) before intercooler after intercooler
5 Technical Data 02.97
bar bar
Installation angle
0.92 0.9 20
Distributor injection pump
Manufacturer
Bosch EDC
Control unit
Manufacturer
Bosch MSA 15
Fuel required cetane number CN as per EN
Diesel > 49 590
Fuel consumption
g / kWh
see page 8
Alternator 12 V
A
70
Starter motor 12V
kW
1.8
Battery 12V
A (Ah)
380 (63) minimum capacity
Glow plugs
V
12
Lubrication
Oil pressure at 2000 rpm and 80°C (176°F)
Oil consumption
Force feed lubrication with gear pump, oil filter in main stream
bar (overpressure)
min. 2.0
ltr./hr
0.05 - 0.1
Engine oil quality
Branded oils as per oil specifications given in instruction manual
Oil cooler
Oil / water heat exchanger
Cooling system
Sealed cooling system (pressurised system with separate expansion tank and pressure control valve)
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Volkswagen industrial engine AFD
Pressure control valve opens at
6 Technical Data 02.97
bar (overpressure)
Coolant
1.2 - 1.5
as anti-freeze and corrosion inhibitor, 60% water and 40% G12 A8D coolant additive (sufficient protection to cold start temperature
limit) Cold start temperature limit
°C (°F)
-25 (-13)
Moments of inertia Crankshaft, complete Flywheel Clutch Pressure plate
kgm2 kgm2 2 kgm kgm2
0.033 0.0935 0.0056 0.0473
Nm
50 radial or axial via crankshaft.
Additional power take off from pulley Permissible operating angle all directions
(%)
35 (70)
Weight dry engine
kg
ca. 135
ltr.
app. 5-6 (depending on cooling system)
Capacities Coolant circuit
For initial filling, gradually add the coolant mixture, constantly bleeding the cooling system, until the max mark is reached. Run the engine warm until the thermostat is fully open. Stop the engine and allow it to cool down before checking and correcting the coolant level. Oil circuit with filter change
ltr.
4.5
ltr.
app. 1.0
Difference in quantity between min and max marks on oil dip stick
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Volkswagen industrial engine AFD
7 Technical Data 02.97
Temperatures Coolant perm. temperatures
°C (°F)
105 (221) permanent
°C (°F)
118 (244) absolute limit
Thermostat starts opening fully open
°C (°F) °C (°F)
87 (189) 102 (216)
Temperature contact switch
°C (°F)
110 ± 3 (230 ± 5)
operation
Engine oil max. perm. temperature °C (°F) in oil sump
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130 (266)
04.11.98
Volkswagen industrial engine AFD
8 Specific consumption 02.97
240
235
230
225
220
215
be g / kWh 210
205
200
195
190
185 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
9 Noise level 02.97
110
105
Full load
Noise level dB(A)
100
Part load 95
90
85
80 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
10 Exhaust gas temperature 02.97
Measuring point: 150 mm after exhaust flange
580
560
540
Exhaust gas temperature °C
520
500
480
460
440
420
400 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
11 Exhaust gas back pressure 02.97
200
180
160
Exhaust gas back pressure mbar
140
120
100
80
60
40
20
0 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
12 Exhaust gas mass flow 02.97
350
300
Total exhaust gas mass flow kg/hr
250
200
150
100
50
0 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
13 Intake air mass flow 02.97
300
250
Intake air mass flow kg/hr
200
150
100
50
0 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Volkswagen industrial engine AFD
14 Charge air temperature 02.97
130
before intercooler 120
110
100
90
80
Charge air temperature °C
70
60
after intercooler
50
40
30
20
10
0 1300
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
Engine speed / rpm
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Industrial Sales
04.11.98
K-VSI 1961
170 160
Volkswagen industrial engine AFD
150 140 Q residual
120
Q air outflow
110 100
Q coolant Q exhaust Q effective
90 80
Energy balance
Industrial Sales
Heat output / kW
130
70 60 50 40 30 20 10 0 1000
1500
2000
2300
3000
3300
15
04.11.98
02.97
Engine Speed / rpm
2500
Volkswagen industrial engine AFD
16 Intake depression 02.97
Depression values were measured using a Golf A3-TDI-air filter. TL-VW 848 should be observed when designing an air intake system
