Post on 02-Jun-2018
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Caterpillar Confidential: GREEN
Introduccin al Negocio de MotoresIndustriales Caterpillar
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Caterpillar es
El ms grande fabricante de equipospara minera y construccin, motoresdiesel y a gas y turbinas industriales.
Lder en tecnologa en construccin,transporte, minera, forestal, energa,logstica y generacin elctrica.
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Principales Lneas de Negocio
Maquinaria
Motores
Productos de Financiamiento
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Unidad de Motores Caterpillar
Caterpillar :US$ 22,000 Millones
Unidad de motores: US $8,000Millones
Cat, Solar Turbines, MaK, Perkins,FGWilson
Worlds Largest Engine Company
Red mundial de Repuestos yservicios.
Empleados a nivelmundial:
Cat Inc69,196
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Lnea de Motores Industriales
Desplazamientos desde 1 hasta 296 litros
Ratingsdesde 15 a 5,000 kW
Turbinas desde 16.2 MW
8 familias de motores
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Negocio de motores Caterpillar
@ 1 motor por minuto 1,400 por da
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Mundialmente
Los productos Caterpillar son fabricados en50 plantas en los Estados Unidos y 65fabricas a nivel mundial.
Ms de 300 productos vendidos en ms de200 pases.
Oficinas en 15 ciudades en 11 pases.
Infraestructura mundial para la distribucinde repuestos.
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Mas de 70 aos de adelantosTecnolgicos
1990s EU/HEUI unit injection fuel systems
ACERT control de Emisiones2001
1930s
1940s
1950s
1960s
1970s
1980s
Primer motor a gas natural
Primer motor diesel industrial
Turbos y aftercoolers
Primer motor exitoso para camiones medianos
Pistones articulados
Motores electrnicos
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Caterpillar Plus
Organizacin mundial de soporte al producto.
Contratos de mantenimiento
Caterpillar Financial Corporation
Caterpillar World Trade Caterpillar Parts Logistics
Global Purchasing
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Soporte MundialCat Network
215 dealers
90,552 empleados
Ganancias Netas sobre los US$ 7,100
millones
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Como afectan lasregulaciones Ambientales
al diseo y desarrollo demotores.
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0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0.00 0.10 0.20 0.30 0.40 0.50
PM, G/HP-HR
NOx,
G/HP-
HR
Off-highway EmissionsHistory
Emissionsreduction
driving enginetechnology
T1Jan 96
T2
Jan 01
73% Reduction
57% Reduction
T3Jan 05/06
T4Jan 11
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Non-Road Emissions
Levels & Technologies
Timing RetardedJWAC / ATAACCombustion OptimizationHigher Injection Pressure
Limited ElectronicsTier 1/Stage I
Tier 2/Stage II
UnregulatedEngines
Particulates-g/h
p-hr
NOx - g/hp-hr
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Tier 3/Stage IIIa
ElectronicsSCAC / ATAAC
ACERTTier 4/4aStage IIIb
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ADEM4TM
Electronic Engine Control
1987
8-bitPEEC II
1991Advanced
8-bit
PEEC III
1993Two 8-bit
ADEM II
199832-bit
ADEM III
2004 32-bit
ADEM 4
Generations of Experience
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Emissions Challenge
Develop the bestcustomer solution
that meets theTier 3/ Stage IIIa
Emissions
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Option #1: Cooled EGR
Exhaust Gases are Re-introduced
Depleting the Oxygen DensityRecycled exhaust gas is externally
cooled
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Cooled-EGR Experience
Reliability?
Durability?
Operating Cost?
Heat Rejection?
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Cat Testing with Cooled EGR
Originally our path for truck
Never considered for non road
Selected one path - ACERT
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Option #2: Internal EGR
Exhaust Gases are Re-introducedDepleting the Oxygen Density
By early opening of intake valvecapturing exhaust gas in manifold
before intake stroke
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Cat Testing with Internal EGR
Effectively reduces engine
displacement
Significant impact on performance Very significant response impact
Concerns on engine wear
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Liebherr JD
Komatsu
Volvo
Cummins
DDC/MBE*
Internal EGR
Internal EGR for small engines, Cooled EGRfor 9.0L & 13.5L
Internal EGR (>200 HP)
In-Cylinder (
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CompetitionTier 3 / Stage IIIa Solutions
What to expect?
EGR (internal/external)
Fuels with higher sulfur than U.S.on-road, sulfuric acid/corrosion a
problemInternal wear due to exhaust gasparticles
High cylinder temperatures pre-ignition increases fuelconsumption
Optimized Combustion
(In-Cylinder Solution)
Growing painsMachine integration challenges
ACERT in emissions box
for 2 years
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How will they get to Tier 3?
No after-treatment
Electronic controls
Fuel systems
Common Rail or MEUI Multiple inj. & rate shaping
Combustion solutions Cooled EGR or Internal EGR
Valve overlapping using cam shape or VVA?
Internal Combustion Optimization
Configuration 4 valve heads, shallow piston bowls
Turbos: Standard, Wastegated or VG
Options to achieve T3
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The SOLUTION:
The missing
piece to thepuzzle!
Innovative
CombustionScience
Alternative
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Advanced Combustion EmissionsReduction Technology
ACERT TechnologyEngines
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ACERTSuite of Technologies
ElectronicControls
Air Systems
Fuel Systems
Reliability
DurabilityPerformance
Fuel Efficiency
Emissions Reduction
Noise Treatment
Operating Costs
Delivering Customer Value
Combustion
Technology
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How Does ACERT
Technology Work?
Precise control of air quantity
Control of cylinder pressure
Precise control of fuel quantity and
timing
Redesigned combustion chamber
Exhaust aftertreatment
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How Is ACERT Technology
Different?
Series turbochargers
JWPC - Jacket Water Pre-cooler
Intake valve actuation
Pilot injection
More advanced software
Exhaust Aftertreatment
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ADEM 4 Developments
Processing speeds and memoryincreased
Up to 300 fuel maps to optimizecombustion
Better performance
Better efficiency
High Speed 2-way communications
Standard SAE link for all C-seriesengines
Broadcasts engine performance,status and diagnostic information
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Series Turbocharging
Reliability Proven technology
Durability Slower shaft speed
Longer life
Performance Better combustion
Emissions reduction
Fuel economy
Improved response
Tier 4/ Stage IIIB
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ACERT Multiple Injection Capability
MEUI, HEUI, HEUI single fluid fuel systems
Multiple injection
Variable injection timing
Controls quantity of fuel
Rate shaping of fuel delivery
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Engine Operating Map Optimization
Square on Accels
Pilot Ramp
Pilot ERS
Ramp Post
Square Splits Pilot Square
Idle Splits
Engine Speed
n
n
L
Engine
Torque
Curve
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Intake Valve Actuation
Holds inlet valve open 3 mm (0.118) Controls intake valve timing BTDC
Not operational when engine oil temperature is below20 degrees C (68 degrees F)
Operational from 1100 - 2100 rpm @ 20 - 100% torque Hydraulic/electric device that holds the intake valves open
during the compression stroke until the ECM determines whento close the intake valves (between 120 and 53 degrees BTDC).
This reduces cylinder pressure during the compression stroke.
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Variable Valve Actuation
Tier 4/ Stage IIIB
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Coolant Flow Schematic Coolant FlowSchematic
JWPCJacket Water Pre-cooler used to cool the air before it enters the ATAAC.
Used to reduce the air temperature from the HP stage turbo. The JWAC is not used at low idle or under
low loads, the cooling system temperature would drop causing engine overcooling. The engine coolant
diverter valve is normally open.
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C15 JWPC C15 JWPC
Jacket Water
Pre-cooler
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Inlet Air Flow Schematic
JWPCJacket Water Pre-cooler used to cool the air before it enters the ATAAC.
Used to reduce the air temperature from the turbochargers.
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Advanced Combustion
Tana UtleyACERT Development Manager
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C15 Piston Assembly
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Aftertreatment
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How Does ACERT
Technology Work?
Precise control of air quantity
Control of cylinder pressure
Precise control of fuel quantity and
timing
Redesigned combustion chamber
Exhaust aftertreatment
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Muchas gracias
Preguntas