G3612 A4 Gas Compression Engine

  • Exterior View

G3612 A4 Gas Compression Engine

Minimum Rating 3,750 bhp
Maximum Rating 4,000 bhp
Emissions NSPS Site Compliant Capable
Displacement 15,528 in3
Compression Ratio 9.2:1
Aspiration Turbocharged-Aftercooled
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Engine Specifications
Minimum Rating 3,750 bhp
Maximum Rating 4,000 bhp
Emissions NSPS Site Compliant Capable
Displacement 15,528 in3
Compression Ratio 9.2:1
Aspiration Turbocharged-Aftercooled
Rotation (from flywheel end) Counterclockwise
Flywheel Teeth 255
Oil Change Interval 5000 hours
Stroke 12 in
Bore 12 in
Weight - Dry 58,500 lb
Ignition, Protection ADEM™4
Minimum Rating 3,750 BHP
Maximum Rating 4,125 BHP
Emissions Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.3 g and 0.5 g/bhp-hr NOx
Displacement 15,528 in³
Compression Ratio Gen 1 (9.2:1) Gen 2 (7:6:1)
Aspiration Turbocharged-Aftercooled
Rotation from Flywheel End Counterclockwise
Flywheel Teeth 255
Oil Change Interval 5000 hours
Stroke 12 in
Bore 12 in
Length 195 in
Width 102 in
Height 129 in
Rated Speed 1,000 rpm
Capacity for Liquids
Cooling System 194 gal
Lube Oil System (refill) 272 gal
Cooling System 194 gal (US)
Lube Oil System - Refill 272 gal (US)

Emissions

Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2010 with the use of an oxidation catalyst

Lean Burn Engine Technology

Lean-burn engines operate with large amounts of excess air. The excess air absorbs heat during combustion reducing the combustion temperature and pressure, greatly reducing levels of NOx. Lean-burn design also provides longer component life and excellent fuel consumption.

Ease of Operation

Includes engine mounted thermostats, compress oil cooler connections, jacket water and lube oil heater connections.

Advanced Digital Engine Management

ADEM4 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM4 has improved: user interface, display system, shutdown controls, and system diagnostics.

Gas Engine Rating Pro

GERP is a web-based program designed to provide site performance capabilities for Cat® natural gas engines for the gas compression industry. GERP provides engine data for your site's altitude, ambient temperature, fuel, engine coolant heat rejection, performance data, installation drawings, spec sheets, and pump curves.https://gerp.cat.com

Product Support Offered Through Global Cat Dealer

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 repairbefore-failure options S•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine: - 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

Over 80 years of natural gas engine production Ownership of these manufacturing processes enables Caterpillar to produce high quality, dependable products - Cast engine blocks, heads, cylinder liners, and flywheel housings - Machine critical components - Assemble complete engine

Website

For all your petroleum power requirements, visit www.cat.com/oilandgas.

Aftermarket Upgrade Kits

  • Air Inlet System
    • Air Cleaners
    • Air cleaner — standard duty Inlet air adapter
  • Control System
    • ADEM 4
  • Cooling System
    • ANSI Class 150 4 inch Flange (outlet water connection)
    • ANSI Class 150 6 inch Flange (Inlet Water connection)
    • Engine driven Water pump
    • Water Jacket Outlet Regulator 88° C
  • Engine Rating
    • Engine rating and speed selection
  • Exhaust System
    • Hard Heat Sheilded Exhaust Manifolds - SAE Standard
    • Vertical Exhaust Outlet
  • Flywheel & Flywheel Housing
    • Flywheel including ring gear for starting. SAE Standard
  • Flywheel And Flywheel Housing
    • Engine Barring Device
  • Fuel System
    • Fuel Filter
    • Gas Pressure Regulator
  • General
    • Paint
    • Wood Skid
  • Instrumentation
    • Basic HMI Engine Interface
  • Lube System
    • Breathers
    • Closed Crankcase Ventilation System
    • Front and Rear Oil Drains
    • Intermittent Prelube Pump
    • Oil Cooler
    • Oil Cooler
    • Oil Pan
    • Oil Supply line
  • Mounting System
    • Six Engine Mounting Feet
  • Power Take-offs
    • Damper and Damper Guard
  • Protection System
    • Crankcase Explosion Relief Valves
  • Starting System
    • Air Starting Motor
  • Telematics System
    • Cat Connect Technology
  • Cat Connect Technology
    • ANSI Class 150 2 inch Flange ( Customer Connect)
  • Charging System
    • Alternator
  • Control System
    • Software Development
  • Exhaust System
    • Flex EXH Fitting
  • Fuel System
    • Fuel Connections
  • Genereal
    • Language Decals
  • Lube System
    • Lubricating Oil
    • Oil Level Regulator
    • Air or electric motor-driven prelube
    • Duplex oil filter
    • RH service
    • Lube oil makeup system
  • Mounting System
    • Lifting Eye Exhaust Shield
    • Mounting Plates
    • Mounting plates (set of six)
  • Service
    • Service Tools
  • Telematics System
    • Cell - Satellite Radio
  • Telematics
    • Product Link Extension Harness
  • Instrumentation
    • LCD display panel
    • Color HMI display
    • Modbus and Ethernet capable
  • Power Take-offs
    • Front stub shafts
  • Starting System
    • Air pressure reducing valve
    • Natural gas starting system
  • General
    • Engine barring device
    • Damper guard
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