G3612 A4 Gas Compression Engine

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CALCULATE FINANCE

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

Engine Specifications
Maximum Rating 3076 bkW (4125 BHP)
Emissions NSPS Site Compliant Capable
Displacement 254 l (15528 inu00b3)
Minimum Rating 2796 bkW (3750 BHP)
Compression Ratio Gen 1 (9.2:1) Gen 2 (7:6:1)
Aspiration Turbocharged-Aftercooled
Rotation from Flywheel End Counterclockwise
Flywheel Teeth 255
Weight - Dry 26535 kg (58500 lb)
Oil Change Interval 5000 hours
Ignition, Protection ADEM™4
Stroke 300 mm (11.8 in)
Bore 300 mm (11.8 in)
Capacity for Liquids
Cooling System 734 l (194 gal (US))
Lube Oil System - Refill 1030 l (272 gal (US))

Standard Equipment

  • Air Inlet System
    • Air cleaner — standard duty Inlet air adapter
  • Control System
    • A4 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control
  • Cooling System
    • Jacket water pump
    • Jacket water thermostats and housing
    • Aftercooler pump
    • Aftercooler water thermostats and housing
    • Two-stage aftercooler
  • Exhaust System
    • Dry wrapped exhaust manifolds
    • Vertical outlet adapter
  • Flywheel & Flywheel Housing
    • SAE standard rotation
  • Fuel System
    • Gas admission valves — electronically controlled fuel supply pressure
  • Ignition System
    • A4 control system — senses individual cylinder detonation and controls individual cylinder timing
  • Lube System
    • Crankcase breathers — top mounted
    • Oil cooler
    • Oil filter
    • Oil pan drain valve
  • Mounting System
    • Engine mounting feet (six total)
  • Protection System
    • Electronic shutoff system with purge cycle
    • Crankcase explosion relief valves
    • Gas shutoff valve
  • Starting System
    • Air starting system
  • General
    • Paint — Cat yellow
    • Vibration dampers

Optional Equipment

  • Air Inlet System
    • Heavy-duty air cleaner with precleaners and rain protection
  • Charging System
    • 35 Amp & 65 Amp chargin alternators – CSA approved
  • Exhaust System
    • Flexible bellows adapters
    • Exhaust expander
    • Weld flanges
  • Fuel System
    • Fuel filter
    • Gas pressure regulator
    • Flexible connection
    • Low energy fuel system
    • Corrosive gas fuel system
  • Instrumentation
    • Remote data monitoring and speed control
    • Compatible with Cat Electronic Technician (ET) and Data View
    • LCD display panel
    • Color HMI display
    • Modbus and Ethernet capable
  • Lube System
    • Air or electric motor-driven prelube
    • Duplex oil filter
    • RH service
    • Lube oil makeup system
  • Mounting System
    • Mounting plates (set of six)
  • 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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