G3612 A4
G3612 A4 Gas Compression Engine
DESCRIPTION
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
- Standard Equipment
- Optional Equipment
- Specs
- Docs
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
Specs
Overview
Engine Specifications
Capacity for Liquids
SEE HOW G3612 A4 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
- Brand
- Caterpillar
- Status
- Current
- Maximum Rating
- 4125 BHP / 3076 bkW
- Emissions
- NSPS Site Compliant Capable
- Displacement
- 15528 in³ / 254 l
- Minimum Rating
- 3750 BHP / 2796 bkW
- 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
- 58500 lb / 26535 kg
- Oil Change Interval
- 5000 hours
- Ignition, Protection
- ADEM™4
- Stroke
- 11.8 in / 300 mm
- Bore
- 11.8 in / 300 mm
- Cooling System
- 194 gal (US) / 734 l
- Lube Oil System - Refill
- 272 gal (US) / 1030 l
- Brand
- Caterpillar
- Status
- Current
- Maximum Rating
- 2750 BHP / 2051 bkW
- Emissions
- NSPS Site Compliant Capable
- Displacement
- 10350 in³ / 169.6 l
- Minimum Rating
- 2500 BHP / 1864 bkW
- 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
- 46500 lb / 21092 kg
- Oil Change Interval
- 5000 hours
- Ignition, Protection
- ADEM™4
- Stroke
- 11.8 in / 300 mm
- Bore
- 11.8 in / 300 mm
- Cooling System
- 140 gal (US) / 530 l
- Lube Oil System - Refill
- 241 gal (US) / 912 l
- Brand
- Caterpillar
- Status
- Current
- Maximum Rating
- 5500 BHP / 4101 bkW
- Emissions
- NSPS Site Compliant Capable
- Displacement
- 20698 in³ / 339 l
- Minimum Rating
- 5000 BHP / 3729 bkW
- 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
- 72000 lb / 32659 kg
- Oil Change Interval
- 5000 hours
- Ignition, Protection
- Electronic, ADEM™4
- Stroke
- 11.8 in / 300 mm
- Bore
- 11.8 in / 300 mm
- Cooling System
- 211 gal (US) / 798 l
- Lube Oil System - Refill
- 351 gal (US) / 1329 l