Doosan - Vado e Torno Edizioni

THE THREE IN NUMBERS
Model D18 D24 D34
B x S mm - S/B 90 x 94 - 1.04 90 x 94 - 1.04 98 x 113 - 1.15
Cilynders n.- dm 3 3 - 1.79 4 - 2.391 4 - 3.4
Maximum power kW/rpm 37 - 2,800 55 - 2,600 74 - 2,400
Mep al max power bar 9.2 10.83 11.07
Piston speed m/s 8.77 8.15 9.04
Torque max Nm/rpm 165 - 1,600 280 - 1,600 430 - 1,400
Mep al max torque bar 11.8 15.02 16.18
Torque at max power Nm 126.1 201.87 294.24
Torque rise % 31 39 46
Power at max torque kW (%) 27.66 (74.7) 46.9 (85.36) 63.08 (85.2)
Dry weight kg 165 200 295
Weight/power kg/kW 4.41 3.71 3.58
Weight/displacement kg/dm 3 90.9 85.33 77.77
Speci c power kW/dm 3 20.63 23 21.7
Areal spec. power kW/dm 2 19.4 21.6 24.54
Compression ratio :1 17 17 17
Injection system
Common rail Delphi 1,800 bar
Air intake
Turbo intercooler wastegate
Valves n. 12 16 16
Emission technologies Egr Egr Egr
Aftertreatment Doc Doc Doc - Scr
Emission level Tier 4 Final/Stage3b Tier 4 Final/Stage3b Tier 4 Final/Stage 4
Doosan Infracore has launched
the production of a
new range of Tier 4 Final/
Stage 3b compact engines. The
rst installation is expected on
Doosan Industrial lift trucks.
The range comprises three models;
the smallest is a 1.8-litre
3-cylinder engine (D18) with a
maximum power of 37 kW at
2,800. The D24 is a step up,
with an additional cylinder compared
to the D18 and an engine
size of 2.4 litres. In this case the
power reaches 55 kW at 2,400
rpm. The top of the category is
the D34, a 74-kW at 2,600 rpm
4-cylinder engine. For the D18
and D24 the cylinder bore and
stroke measure 90 x 94 mm respectively,
while the top of the
range, the D34, measures 98 x
113 mm. The torque value for
the 3-cylinder is 165 Nm, however,
the Korean manufacturer
also offers the 113- and 154-
Nm versions. The 4-cylinder
D24, on the other hand, offers
a maximum torque of 280 Nm
22
KOREA
3 and 4 cylinder engines with a 600 cc swept
volume per cilynder and a 4 one of 3.4 litres. For
the first two only Egr and Doc. The top category,
that reaches 74 kW and is certified, allows for Scr
and, for different ratings, also
of 235 Nm. The 3.4-litre spans
from 410 and 430 Nm. The model
is equipped with a Diesel
particulate lter, but only with
Doc and a Scr system, the latter
available only for the 3.4-litre.
Doosan Infracore
MADE IN
In this page,
the Doosan
Infracore
compact
engine D
series.
These are all
engines Tier 4 Final
without Dpf (Diesel
particulate filter).
At the top, a
74 chilowatt
certified allows
for Scr. The
first installation
is expected on
Doosan Industrial
lift trucks.
The common features are four
valves per cylinder, exhaustion
gas recirculation, the common
rail injection system developed
by Delphi that performs at a
maximum injection pressure of
1,800 bar and the turbo intercooler
with a waste gate valve.
The new Doosan compact
engines have several rivals on
the market. Nevertheless, segmentation,
engine size and the
absence of a particulate lter
render them highly competitive
with Kohler Kdi (despite the
lack of a mechanical version
for Doosan).
Torque at the top
The compact engines, developed
in Reggio Emilia, excel on
the entire range with greater
machine torque values by 10-
15 %. The new engines will
be manufactured in the Incheon
plant (South Korea). The
rst models were released from
the production line in October
2012. The production capacity
at the end of 2013 was estimated
to approximately 50 thousand
units/year, and estimate
that will reach 100 thousand
units in 2015 following a considerable
incorporation performed
by Bobcat. John Robins