45449_JCB_5483UK-1-68+81+93-Engine-PR.pdf

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45449_JCB_5483UK-1-68+81+93-Engine
JCB DIESELMAX ECOMAX TIER 4 ENGINE 68kW, 81kW, 93kW 444
MOBILE MACHINERY
697mm
814mm
6
911mm
Crankshaft
Centre Line
GENERAL TECHNICAL DATA
68kW
81kW
93kW
68kW
81kW
93kW
Thermodynamic Cycle
Diesel 4 stroke
Diesel 4 stroke
Diesel 4 stroke
Rotational mass moment of inertia excluding flywheel. kgm 2
0.2255
0.2255
0.2255
Air intake
TCAE
TCAE
TCAE
Standard flywheel inertia
kgm 2
0.4061
0.4061
0.4061
Arrangement
In-line 4 cyl.
In-line 4 cyl.
In-line 4 cyl.
Maximum rating *(intermittent)
kW
68
81
93
Bore
mm
103
103
103
Rated speed
rpm
2200
2200
2200
Stroke
mm
132
132
132
Maximum torque
Nm
440
500
550
Swept Volume
cm 3
4399
4399
4399
Maximum torque speed
rpm
1400
1500
1500
Mean Piston speed at rated speed
m/s
9.68
9.68
9.68
Maximum no load governed speed
rpm
2370
2370
2370
Valves per cylinder
4
4
4
Nominal idling speed
rpm
850
850
850
Cooling
Liquid
Liquid
Liquid
BMEP at maximum torque
bar
12.5
14.2
15.7
Direction of rotation (viewed from crank nose)
Clockwise
Clockwise
Clockwise
Minimum starting temperature without auxiliaries
°C
-20
-20
-20
Compression ratio
16.7
16.7
16.7
*As per ISO14396 (nett power without fan)
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JCB DIESELMAX ECOMAX TIER 4 ENGINE 68kW, 81kW, 93kW 444
TORQUE CURVES
POWER CURVES
630
&)%
&(%
&'%
&&%
&%%
.%
-%
,%
+%
*%
)%
(%
'%
&%
%
580
530
480
430
380
330
280
230
800 1000 1200 1300 1400 1500 1600 1800 2000 2200
Speed RPM
-%% &%%% &'%% &(%% &)%% &*%% &+%% &-%% '%%% ''%%
68kW
81kW
93kW
HeZZYGEB
+-`L -&`L .(`L
FUEL CONSUMPTION
250
●
Low cost of ownership
240
●
68kW – 93kW 4.4L Tier 4 Interim
230
●
Improved response compared to Tier 3
Packaging benefits
220
●
210
●
Fuel consumption 5-10% improvement over Tier 3
200
190
1000
1200
1400
1600
1800
2000
2200
Speed RPM
68kW
81kW
93kW
JCB Power Systems Ltd., Dove Valley Park, Foston, Derby DE65 5BX. Tel: 01889 590312. www.jcbpowersystems.com
JCB reserves the right to change specifications without notice. Illustrations shown may include optional equipment and accessories. The JCB logo is a registered trademark of J C Bamford Excavators Ltd.
Preliminary 9999/5483 03/10 Issue 1
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