Building
your tomorrow
today
D24 2.4L
Corporate profile
History & Award
Doosan Infracore ranks among the worlds leading makers of construction equipment,
machine tools and engines required to build and maintain infrastructure. We were founded
in 1937 and have since achieved an unrivalled position in the world. In the 1990s, we have
grown to become a truly global player through technological advancements, acquisitions
and new product developments.
Doosan Infracore have built a global network of large production facilities and sales
subsidiaries, along with extensive dealer networks in all regions of the world including
North America, Europe and China. Doosan Infracore continues to secure the latest products
and technologies in line with the growing demand for green engines and boosting customer
values.
1950~70s
1980~90s
2000s
2010s
1950s
1980s
2000s
2010s
1958 Marine Engine
(AVL)
1983 Large Engines
(MAN license)
- D28 Series
(15, 18, 22L)
2000 	Best Award on Engine
	with GE12TI engine	
(NGV2000)
2010 Euro V engine.
US10 CNG engine
(supplied to LA 	
Metro Bus)
1970s
1975 Medium duty
Engines
(MAN license)
- D0846, D2156
1979 Light duty Engines
(ISUZU license)
- 4BA1, 6BB1
(2.8, 5.4L)
Introduction of Engine Business Group
The history of the Doosan Infracore Engine BG goes back to 1958 by offering diesel engines,
and the unit today produces and supplies diesel and natural gas engines with high
performance and fuel-efficiency for commercial vehicles, military vehicles, construction
equipment, generators and ships around the world. Doosan Infracore is emerging as a global
engine producer by developing a full line-up of diesel and gas models that meet increasingly
strict environmental regulatory standards.
With the introduction of our new compact diesel Tier 4 final and EU Stage IIIB & IV compliant
engines, Doosan Infracore is positioned to become one of the worlds top 5 engine makers
with advanced environmentally-friendly technologies .
Grand Prix of
Quality Control
(Honor of President/
Korea)
1985 STORM engine,
(the first in-house
designed model,
8, 12L)
2001	 Tier II engine
2004	Euro III engine with	
Common-rail system
2006	 GM Group Supplier	
of the Year (SOY)	
award
2007	 Euro IV engine
1986 Iron Medal of
Industry with STORM
engine (Honor of
President/ Korea)
2008	 CNG engine
	assembly plant in	
Atlanta
- US07 certified
1988 Small Engines
- 3AB1, C223,
C240, 4BC2
(1.8, 2.2, 2.4, 3.3L)
2009	 Joint Venture with
	XCMG in China	
: XDEC
2011 Tier IV-Interim
engine
2012 XDEC, start of
production
Engine plant in
China
Start of production
of Doosan Compact
Diesel Engines
(1.8,2.4,3.4L)
1990s
1994 Acquire ISO
9001/9002
1995 DE & DV series
(8, 12, 15L)
Gold Medal of Q.C.C.
Contest (Honor of
President/ Korea)
1996 Grand Prix Tech. of
Environmental
Reservation with
DE12TI engine
(Honor of President/
Korea)
1997 Grand Prix of Quality
Management
(Honor of President/
Korea) Acquire ISO
14001
Contents
Introduction		
History & Award		
_02
_03
Features of the Engines	
Specification of the Product	
_05
_12
Doosan Infracore Engines	
_04
Technical Data		
_15
1999 GE series
- CNG engine for
city bus (12L)
Doosan Infracore Engines |
03
Doosan Infracore Engines
Best-in-class plant brings 		
best-in-class quality
For more than 50 years, we have supplied over 1.5 million sets of engines with durability, reliability
and quality worldwide. Doosan Infracore offers a full line-up of engines, across a broad range of
engine sizes with the completion of its Doosan Compact Diesel Engine plant. Doosan Compact
Diesel Engines are developed and designed to meet the emissions level of US Tier 4-final and EU
Stage IIIB & IV.
A state-of-the-art production plant guarantees the perfect quality.
Doosan Compact Diesel Engines are designed to be installed in a wide range of compact and midsized equipment, such as loaders, excavators, forklifts, tractors, portable power machinery, and
more, serving industrial, commercial and agricultural applications.
Completed in 2012 with the latest and the advanced technologies, the new plant is specifically
designed to build new Doosan Compact Diesel Engines. Clean, efficient and durable Doosan Compact
Diesel Engines provide its customers with products that meet and exceed all expectations.
With its low carbon footprint and high performance characteristics, Doosan Compact Diesel
Engines innovate and fuel what matter most: your profits.
Product line up
Power(PS)
Engine Families
World class
Quality Plant
Doosan Compact Diesel Engines offer an advanced quality assurance
through real-time in-line production monitoring and testing systems.
This rigorous production process in our best-in-class, state-of-the-art plant
ensures consistent high quality engines.
Zero Defect &
Loss Plant
Our aim is to cut any loss and defect during the process of manufacturing
which caused the product delivery delay and the poor quality. Human errors
are remarkably minimized by various advanced error-proof testing modes.
Green Plant
The Doosan Engine Plant is not just about an engine production, it also
focuses on the people and the environment. A pleasant work environment
improves operating efficiencies and the environmentally-friendly plant
minimizes emissions. Doosan Compact Diesel Engines are designed to
consider the environment during manufacturing, as well as during operation.
2000
1000
800
600
400
200
0
Series
Displ(Liters)
Power(PS)
Doosan Compact
Diesel Engines
1.8, 2.4, 3.4
27 ~ 115
DL
DE
GE&GV
DV
VX
5.8~7.6
270~340
8.1~11.1
156~400
8.1~21.9
240~625
14.6~21.9
300~1200
18~27
1000~2000
[Gas Engine]
04 | Doosan Infracore Engines
* To be built in 2015
Durable
Solution
Doosan Compact Diesel Engines were built with the customer in mind.
Listening to what compact engine customers wanted, Doosan Infracore set out to
provide customers with engines robust enough to endure the most challenging
working conditions.
By analyzing the root cause of customer downtime, Doosan Infacore developed a
new, unique, customized verification methodology to minimize downtime by ensuring
reliable, high quality engines.
High performance
solution
Doosan Compact Diesel Engines offer high power output, high low-end torque and
maintain the highest level of performance for the most challenging conditions in the
most challenging applications.
Advanced fuel injection system
Common rail system
The fuel injection system of Doosan Compact Diesel Engines
is 1,800 bar common rail system. The advanced fuel injection
system enables accurate fuel injection control thanks to its
An innovation not only in the engine design, but also the manufacturing and quality
control processes make Doosan Compact Diesel Engines the most reliable compact
engine available.
high pressure of the common rail. This unique technology of
Doosan Compact Diesel Engines improves performance and
fuel efficiency, while reducing emissions, noise and vibration.
Your Benefits
 Low exhaust gas emissions
 Low noise and vibration
 Better fuel efficiency
 Optimized governing for each application
Turbocharger
Turbo charger
The wastegate-type turbo charger with an intercooler helps
realize the best-level performance.
Your Benefits
 Better fuel efficiency and performance
 Excellent low-end torque
 Maintaining optimal performance even at high altitudes
06 | Doosan Infracore Engines
Doosan Infracore Engines |
07
Convenient
Solution
Economical
Solution
Doosan Compact Diesel Engines are designed for efficiency, as well as the performance,
with the durability and the quality you expect. Lower fuel consumption, longer
maintenance intervals and maintenance-free after-treatment systems lower the total
cost of ownership over the life of your engines. The payback period is faster with Doosan
Compact Diesel Engines and that of any other engines in this class.
Lower fuel
consumption
With its strong power at small displacement, Doosan Compact Diesel Engines are ideal
for a wide variety of equipments. Doosan Compact Diesel Engines are designed to
optimize the applications, with the engine performance. The compact size, flexible aftertreatment system and the simple installation of Doosan Compact Diesel Engines allow
engine configurations to fit almost any type of equipment.
Flexible configuration of after-treatment system
 Both engine-mount and chassis-mount design are available
Maintenancefree for the
after-treatment
system
Your
Economical
Benefits
Solution
500 hours of
oil exchange
interval
500 hours of
fuel filter exchange
interval
08 | Doosan Infracore Engines
Doosan Infracore Engines |
09
Eco-friendly
Solution
Built with the latest, Doosan Compact Diesel Engines greatly reduce Nitrogen Oxides (NOx)
and Particulate Matter (PM), satisfying both US Tier 4-final and EU Stage IIIB & IV
emissions requirements.
While traditional engine makers are relying on conventional technologies to satisfy the
regulations of emissions control, Doosan Infracore has developed a unique aftertreatment system.
The conventional technology after-treatment systems apply both Diesel Particulate Filter
(DPF) and Diesel Oxidation Catalyst (DOC) to meet the emissions regulation. Departing
from the complicated conventional after-treatment systems, Doosan Infracore has
successfully eliminated DPF while satisfying the stringent emissions requirements.
Doosan Compact Diesel Engines address both user convenience and environmental
concerns.
The conventional DPF type after-treatment systems cannot avoid the inconvenience and
maintenance cost caused by their complicated system structure in order to meet US Tier
4-final and EU Stage IIIB & IV emissions regulations. Doosan Compact Diesel engines use
a non-DPF System which is a much simpler system than DPF-type systems solutions  no
concerns on maintenance or quality issues. Doosan Compact Diesel Engines will be your
best choice satisfying both the users and the environment.
Our research shows that dealers and customers want and prefer a non-DPF solution.
A non-DPF engine will mean fewer parts on our engines than a DPF engine, which means
there will be fewer items for customers to perform required maintenance on. And a nonDPF engine will help minimize after-treatment quality issues, such as a regeneration
process, clogging and cleaning the filter.
Conventional DPF
after-treatment system
Non-DPF System
Your Benefits
 Elimination of unnecessary parts (DPF with complicated sensors, wires, diagnosis lamps and etc)
 Prevention of after-treatment quality issues
 Maintenance  Free (No regeneration process and No ash cleaning)
10 | Doosan Infracore Engines
Doosan Infracore Engines |
11
Specification
Specification
D18
D24
Model Name
D18
Model Name
D24
No. of Cylinder
In-line 3
No. of Cylinder
In-line 4
Bore x Stroke
90 x 94mm
Bore x Stroke
90 x 94mm
Displacement
1,794cc
Displacement
2,392cc
Aspiration
Turbocharged & Intercooled
Aspiration
Turbocharged & Intercooled
Max. Power
50hp (37kw) @2,800rpm
Max. Power
74hp (55kw) @2,600rpm
Max. Torque
165Nm @1,600rpm
Max. Torque
280Nm @1,600rpm
Aftertreatment
DOC (Tier4-final)
Aftertreatment
DOC (Tier4-final)
Torque[Nm]
PERFORMANCES
DIMENSIONS *
Power
Output[kW]
200
180
160
140
80
120
50
100
40
80
60
30
Torque[Nm]
12 | Doosan Infracore Engines
Torque
Power
80
673
200
60
150
40
100
20
ENGINE RPM
100
250
60
10
20
0
0
800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000
Power
Output[kW]
300
70
40
DIMENSIONS *
690
PERFORMANCES
524
573.5
* Dimensions vary depending on the delivery specification
50
20
0
800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800
ENGINE RPM
Torque
Power
556
673.5
* Dimensions vary depending on the delivery specification
Doosan Infracore Engines |
13
Specification
Technical Data
D34
Model Name
Cyliner arrangement
Main
Characteristics
Model Name
D34
No. of Cylinder
In-line 4
Bore x Stroke
98 x 113mm
Displacement
3,409cc
Aspiration
Turbocharged & Intercooled
Max. Power
100hp (75kw) @2,400rpm
Max. Torque
430Nm @1,400rpm
Aftertreatment
DOC + SCR (Tier4-final)
Torque[Nm]
DIMENSIONS *
80
70
200
150
60
50
100
40
30
20
800 1000 1200 1400 1600 1800 2000 2200 2400 2600
ENGINE RPM
Torque
Power
769
90
250
50
0
Performance **
100
300
Fuel Economy **
Fuel
580
701
* Dimensions vary depending on the delivery specification
Specifications are subject to change without prior notice.
14 | Doosan Infracore Engines
In-line 3
In-line 4
In-line 4
Fuel Injection system
High pressure common rail (1,800bar)
Aspiration
Turbocharged & Intercooled
Turbocharger
Wastegate Type
EGR
External cooled EGR
DOC
Maintenance
DOC
DOC + SCR
Emissions compliance
US Tier4-final EU StageIIIB US Tier4-final EU StageIIIB US Tier4-final EU StageIV
Valve arrangement
4 valves per cylinder
Ventilation system
Oil separator intergrated CCV(Close-Circuit Ventilation)
Bore x Stroke (mm)
90 x 94
90 x 94
98 x 113
Displacement (cc)
1,794
2,392
3,409
Compression ratio
17 : 1
163
Gradeability
Power
Output[kW]
120
110
500
450
400
350
D34
Full electronic engine management
Engine weight (kg) *
PERFORMANCES
D24
Engine control
After-treatment
Technical
Features
D18
204
265
35deg for 4 directions
Max. power (hp[kW]/rpm)
50 [37] /2,800
74 [55] /2,600
100 [75] /2,400
Max. torque (Nm/rpm)
165 /1,600
280 /1,600
430 /1,400
Low-end torque(Nm@1,000rpm)
154
235
410
Min. BSFC (g/kWh)
220
217
212
Max. power (g/kWh)
255
245
242
Fuel compatibility
EN590:2009 Diesel
Oil/filter change
500hr
Fuel filter change
500hr
Valve adjustment
500hr
* Dry weight: w/harness included and f/wheel & HSG, alternator, A/C pulley, belt and aftertreatment not included.
** These features can be varied according to customers requirements and are only for information purposes.
Doosan Infracore Co., Ltd
http://engine.doosaninfracore.co.kr
7-11, Hwasu-Dong, Dong-Gu, Incheon, Korea
Engine Sales
21st Floor, Doosan Tower, 18-12, Euljiro 6-ga, Jung-gu, Seoul, Korea
Tel : +82-2-3398-8400 / Fax : +82-2-3398-8509
Email : enginesales@doosan.com