CAT Industrial Engine for Drilling Machine

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© 2014Caterpillar All Rights Reserved
Caterpillar Confidential ‘Yellow’
CAT Industrial Engine
for Drilling Machine
Mr.Otgontugs U. Sales Engineer
of Wagner Asia Equipment

2
Industrial Power Systems
Agenda
 CAT Industrial Engines
 Fuel quality concerns
 Benefits of electronic injection
 What the C4.4, C4.4 ACERT / C7.1, C7.1 ACERT replaces

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Emissions Legislation is changing, but Tier 3/Stage IIIA
Equivalent and Below Represents a Large Global Opportunity

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Cat® Industrial Engines Provide an Opportunity for using
many different Applications
Crane
Combine harvester
AgricultureConstruction Industrial
What applications are you aware of?
Crop sprayers
Crop harvesters
Sewage pumps
Storm pumps
Drain pumps
Ski lifts
Lift shafts
Well head machines

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What is an Opportunity?
Reasons for the Customer to Change Engine
Recent focus
 Emissions standards force change
What else …
 Technology change required
 Next generation machine design or derivative
of generation design
 End user customer requirements change;
power, performance, fuel consumption
 Cost reduction challenge at OEM (lifetime
engine value focus)
 OEM finds new markets, exporting to new
markets
 Create a machine for an emissions territory
rather than one for all
How can we support you better?

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Meeting Aggressive Standards, Delivering More Value
EU Stage 1 (1999) – EU Stage IV (2014)
Engines rated 130 bkW to 560 bkW (175 bhp to 750 bhp)

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4.4 and 7.1 Litre Engines for Tier 3 / Stage IIIA
C4.4 mechanical
Remains the same engine
C4.4 ACERT electronic
• 4 valve cylinder head
• New robust common rail FIE
• Improved 2 stage fuel filtration
• Slight height and width increase
C7.1 mechanical
• Heavy duty fuel filtration
• Size and weight consistent with C6.6
• Performance and SFC similar to C6.6
C7.1 ACERT electronic
• 4 valve cylinder head
• New robust common rail FIE
• Improved 2 stage fuel filtration
• Height and width increase

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New C4.4 ACERT Features
NEW Common Rail Pump
(Standard)
NEW Fuel Rail (Standard)
NEW Injectors
NEW top cover assembly including
Tier 4 interim / Stage IIIB oil separator
NEW High Capacity
Fuel Filters
Mechanical waste gate
turbo
FEAD common across
range
Replaces smart waste
gate for improved
performance
Auto tensioner and belt teeth for
better drive through and
improved belt life
Capture oil mist better
for improved external
breathing
Four times debris capability
and flow capability to
match new fuel pump
Oil lubricated pump prevent
problems with poor fuel quality
from fuel lubricated pumps
Provides common rail, half
speed fuel pump without
changing architecture
More robust, provides
improved fuel debris
tolerance

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C4.4 ACERT Electronic Engine Benefits
Minimised changes in SFC and heat rejection
 Lowers impact of changeover on customer installation
 Overall 3 percent to 5 percent improvement in SFC
Heat balance optimised
 Heat to ATAAC reduced
 Heat to water jacket reduced
Reliability
 Improved reliability versus previous injection system
 Fuel filters service interval 500 hours with low sulphur
fuel
 Improved reliability with engine core and fuel system
B10 8,000 hours
 Altitude capability 2,500 feet without derate
Class leading robust fuel system
 Tolerance to global fuels
Minimum installation changes required
 Based on the common mechanical engine
platform
 Options offered common for C4.4 mechanical and
electronic, and Tier 4 Interim, Stage IIIB
 Common ECM and Installation
Class leading noise level, lower than Tier 0, Stage 0
or Tier 2, Stage II
 No need for additional sound insulation across the
range
 Prevents changes required
to the engine enclosure

11
C7.1 mechanical timing drive
and modifications for pump
NEW common rail pump
(Standard)
Cat ECM (A4-E2
mod)
NEW fuel rail
(Standard)
C6.6 ACERT based
cylinder head
C7.1 ACERT New Engine Core Architecture
NEW injectors
NEW top cover assembly incl. Tier 4
interim / Stage IIIB oil separator
C6.6 ACERT™ valve gear
C6.6 ACERT
Air system
C7.1 mechanical core +
Speed sensor bosses/timing ring
C6.6 ACERT FEAD + Tier
4 auxiliary mounts
NEW high
capacity fuel
filters
Uses previous technology to
maintain costs
Uses current technology
to maintain costs
New C4.4
ACERT
technology with
identical
benefits

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C7.1 ACERT Electronic Engine Benefits
Improved performance
 Improved power ratings, now up to 205 kW
 3 percent to 5 percent SFC improvement on C6.6 ACERT
 Improved Heat Reduction
 ATACC HR ~ 30 kW at 186 kW
 Radiator HR ~88 kW at 186 kW
Reliability
 Improved reliability versus previous injection system
 Fuel filters service interval 500 hours with low sulphur fuel
 Improved reliability with engine core and fuel system B10 8,000 hours
 Altitude capability 3,000 feet without derate
Minimum installation changes required
 Engine fixings and hook up same as rest of C4.4 ACERT
 Based on the common mechanical engine platform
 Consistent option offering Tier 3 Stage IIIA / Tier 4 Stage IIIB
 Common ECM and installation
Awareness
 Slightly heavier and larger than C6.6 ACERT

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The NEW C4.4, C4.4 ACERT / C7.1, C7.1 ACERT
for Tier 3 Stage IIIA Equivalent Emission Standards
Displacement Type Fuel System Aspiration Power (kW) Torque (Nm)
Rated Speed
(rpm)
C4.4 4.4 Litre
Rotary Mechanical
NA 56 265 1800 – 2200
T 55.5 – 74.5 392 1800 – 2200
TA 68 – 83 418 1800 – 2200
ACERT Electronic Common Rail
T 68 – 74.5 468 1800 – 2200
TA 74.5 – 106 556 1800 – 2200
C7.1 7.0 Litre
Rotary Mechanical TA 112 - 130 750 2200
ACERT Electronic Common Rail TA 116 - 205 1050 2200 - 2500
Electronic
Electronic
Electronic

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Agenda

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Variation in Diesel Fuel Quality - Example
Fuel surveys taken from Filling Stations
Multiple stages of filtration are required
Internal EGR is more suitable for the
market.
Common Rail fuel system are effected more
than Mechanical fuel systems

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Fuel Quality at End User Site is Variable
High Efficiency Filtration is required to Maximise performance
 Fuel Storage is inconsistent!
 Filtration is key to protection of engine
 China Wuxi area: filter duration circa 340 hours

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C4.4 ACERT and C7.1 ACERT Features
2 Stage Fuel Filtration
Secondary filtration as standard
 Four times debris capability required
 Remote filtration system option
Achieved by double Tier 4 interim filter capacity
 Increased efficiency and water separation
 Proven filter technology
 500 hours service interval with low sulphur fuel
Localised Injectors
and Fuel Rail
Secondary filter with
Tier 4 Interim / stage
IIIB technology
Oil Lubricated
HP Pump
Dual Primary Fuel
Filter with electric or
hand pump
Use off the shelf technology
 Common Rail fuel system >15 times more robust to debris
 Oil lubricated HP Pump increases robustness to poor fuel lubricity
 Bio-fuel compatible

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Benefit of Improved Engine is Good Altitude
Performance
Calibration of pump technology
delivers
 High Altitude starting, up to 4,600 m
 Cold Start to -25°C
 Performs up to 3,000 m without
derate

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Agenda

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Mechanical
 Mechanical fly-weight governors
 Mechanical or electronic speed governing
 Rotary fuel pump
 Traditional mechanical way to control fuel injection
 Rotary pump , more accurate fuel injection than in-line
pump and improves engine performance
 Set in position for optimum performance
 ECU (Electronic Control Unit) with electronic sensors and
actuators or solenoids
 High pressure common rail
 Common rail fuel pump
 Via accurate fuel injection to optimise combustion in
order to improve engine performance and fuel
consumption
 Interface with vehicle systems and carries out self
monitoring and diagnostics
 Additional functions
 Cold start and overheat engine protection
 Remote engine shutdown e.g. crane rollover
 Constant engine speed irrespective of load e.g. PTO
Electronic
Electronic Control – the Difference

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Benefits of Electronically Controlled Engines
Meet emission standards
 Provides ability to meet NOx and Particulate emissions standards at power levels when a mechanical
product would not be compliant
Matching engine to application
 Enhanced performance through electronic control, load acceptance, SFC mapping, transient response
 Engine for premium OEM products where engine to machine integration can provide value in terms of
response, speed control, transmission control, etc
 Speed/governing control can align to application; excavator, genset, compressor, tractor, loading
Machine improvements
 CAN network for control system and instrument cluster providing feedback to operator
 De-rate strategy provides engine protection for oil and water temperature with operator feedback
through warning interface.
 Demand fans matched to machine operation saving on noise and fuel consumption
 Improved altitude and cold start capability

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Mechanical
ACERT / electronic
5
4
3
2
1
54321
Practical Approach to the Trade Off between
Performance and Value for Engine Selection

CAT Industrial Engine for Drilling Machine

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