3512E DGB SCAC

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Overview

The new land well service 3512E Dynamic Gas Blending™ dual fuel engine will be certified to U.S. EPA Tier 4 Final emissions standard while offering the highest natural gas substitution in its class. The 3512E DGB will include factory solutions that emit approximately the same or less greenhouse gas (GHG) emissions as a comparable 3512E Tier 4 Final diesel engine. Additionally, the dual fuel performance of the new 3512E DGB has significantly increased compared to similar engines in its class with the ability to achieve 85% diesel displacement, further allowing for lower operating costs.

Emissions

Units:
Emissions U.S. EPA Tier 4 Final U.S. EPA Tier 4 Final Less

Dimensions

Length 138.0 in 3494.0 mm Less
Width 91.0 in 2308.0 mm Less
Height 108.0 in 2747.0 mm Less
Weight 22352.0 lb 10139.0 kg Less

Capacity for Liquids

Cooling System 52.0 gal (US) 197.0 l Less
Lube Oil System - Refill NaN gal (US) NaN l Less

General Specifications

Minimum Rating 2250.0 BHP 1678.0 bkW Less
Maximum Rating 2500.0 BHP 1864.0 bkW Less
Aspiration SCAC SCAC Less
Displacement 3596.0 in³ 58.9 l Less
Flywheel and Flywheel Housing SAE No. 0 SAE No. 0 Less
Flywheel Teeth 151 151 Less
Stroke 8.5 in 215.0 mm Less
Bore 6.7 in 170.0 mm Less
Governor and Protection Electronic (ADEM™ A5) Electronic (ADEM™ A5) Less
Rotation from Flywheel End Counterclockwise Counterclockwise Less

Engine Design

  • Proven reliability and durability
  • Robust diesel strength design prolongs life and lowers owning and operating costs
  • Broad operating speed range
  • Air shutoff – integrated with engine controls
  • EGR/Diesel Oxidation Catalyst (DOC)/common rail fuel system to meet Tier 4 Final/Stage IV emission standards
  • DEF free solution – eliminates the storage, logistics, and issues involved with SCR/DEF design engines
  • Individual cylinder based gas injection system.
  • Engine mounted DGB controls.
  • Engine mounted Gas filter, water coalescing type

Cooling System

Separate Circuit Aftercooler (SCAC)

Engine-Mounted Package

Integrates with engine, aftertreatment, heavy-duty air cleaners, residential grade mufflers available in stainless or carbon steel

Engine-Mounted Transmission Oil Cooler

Integration with engine cooling system allows ease of installation and a tighter overall engine package

Advanced Digital Engine Management

ADEM A6 DGB based controls seamlessly integrated with A5 engine management system.

Custom Packaging

For any petroleum application, trust Caterpillar to meet your exact needs with a factory custom package. Cat engines, generators, enclosures, controlsCustom Packaging , radiators, transmissions – anything your project requires – can be custom designed and matched to create a one-of-a kind solution. Custom packages are globally supported and are covered by a one-year warranty after startup.

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Testing

Every engine is full-load tested to ensure proper engine performance

Product Support Offered Through Global Cat Dealer Network

  • More than 2,200 dealer outlets
  • Cat factory-trained dealer technicians service every aspect of your petroleum engine
  • Cat parts and labor warranty
  • Preventive maintenance agreements available for repair-before-failure options

S•O•SSM program matches your oil and coolant samples

  • Internal engine component condition
  • Presence of unwanted fluids
  • Presence of combustion by-products
  • Site-specific oil change interval

Over 80 Years of Engine Manufacturing Experience

Ownership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.

  • Cast engine blocks, heads, cylinder liners, front and flywheel housings
  • Machine critical components
  • Assemble complete engine

Web Site

For all your oil & gas power requirements, visit: www.cat.com/oilandgas

3512E DGB SCAC Standard Equipment

Control System
  • Cat ADEM A6 DGB controls

Cooling System
  • Thermostats and housing, jacket and separate circuit water pump, gear-driven centrifugal
  • SCAC system

Exhaust System
  • Dual DOC
  • Exhaust manifold, dry, bellows connection
  • Four turbochargers with watercooled bearings
  • Exhaust outlet, dual 10-inch ANSI round ?ange as part of aftertreatment

Flywheels & Flywheel Housing
  • Flywheel, SAE No. 0, 151 teeth

Fuel System
  • Engine mounted Gas filter, water coalescing type
  • Clean fuel module boost pump
  • Fuel transfer pump
  • Common rail fuel system
  • Primary/secondary fuel ?lters
  • Fuel priming pump (electric)

Instrumentation
  • Product Link� engine monitoring

General
  • Vibration damper and guard
  • Lifting eyes
  • Paint � Caterpillar yellow

Lube System
  • Closed Crankcase ventillation � top mounted
  • Fumes disposal
  • Oil ?lter � RH spin-on type
  • Oil cooler
  • Oil filler and dipstick � LH
  • Oil scavenger pump
  • Oil pump
  • Oil pan drain valve, 1" NPT female connection

Mounting System
  • Trunion front support
  • Flywheel housing � two-sidedfailure options

Aftertreatment Mounting
  • CEM/muf?er support package Heavy-duty air cleaners (2 element with precleaners)

Protection System
  • Emergency stop logic inputs provided at 70-pin customer interface connection
  • ADEM A5 ECU system to provide customer programmable engine deration strategies to protect against adverse operating conditions

3512E DGB SCAC Optional Equipment

Charging System
  • 80, 95, or 150 amp charging alternator

Control System
  • Local speed throttle control
  • Throttle position sensors

Cooling System
  • Coolant conditioner
  • JW outlet coupling-style connections
  • JW inlet weld-flange connection
  • SCAC inlet and outlet coupling-style connections
  • JW inlet and outlet hose barb connections
  • SCAC inlet and outlet hose barb connections Water level switch gauge
  • JW Heater installation connections

Exhaust System
  • Flex pipe kit
  • Residential mufflers (painted steel and stainless steel) with outlet elbow and rain cap

Flywheels & Flywheel Housing
  • Allison and Twin Disc flywheel options

Instrumentation
  • Product Link harness extensions
  • LAN adapters

Lube System
  • Rear sump oil pan � 250-hour change interval
  • Front deep sump oil pan � 500-hour change interval

Power Take-Offs
  • Front Crankshaft Adapter
  • Front crankshaft stub shaft
  • Accessory drive � upper RH

Protection System
  • Hydraulic actuated air shutoff

Starting System
  • Dual hydraulic starter - LH
  • Manual engine barring device
  • Hydraulic starter - LH

Transmission Attachments
  • Transmission oil cooler
  • Transmission oil cooler 2-1 connections
  • Torque converter connections

General
  • Additional paint selections
  • Air compressor