G3520/G3520B

Cat® G3520 and G3520B Industrial Gas Engine. Ratings: 1104 bkW (1480 bhp) @ 1200 rpm and 1286 bkW (1725 bhp) @ 1400 rpm are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.


SPECIFICATIONS
Power Rating
Minimum Power 1480 BHP
Maximum Power 1725 BHP
Frequency 1200-1400 rpm


General
Bore 170 mm (6.7 in)
Stroke 190 mm (7.5 in)
Displacement 86.3 L (5263 in³)
Engine Configuration Engien - Continuous


Engine Dimensions - Approximate
Height 2385 mm (94 in)
Length 4180 mm (164 in)
Weight - Net Dry 11168 kg (24622 lb)
Width 1755 mm (69 in)


BENEFITS & FEATURES
Engine Design


  • Built on G3500 LE proven reliability and durability
  • Ability to burn a wide spectrum of gaseous fuels
  • Robust diesel strength design prolongs life and lowers owning and operating costs
  • Broad operating speed range at lower site air densities (high altitude/hot ambient temperatures)
  • Higher power density improves fleet management
  • Quality engine diagnostics
  • Detonation-sensitive timing control for individual cylinders

Ultra Lean Burn Technology (ULB)


ULB technology uses an advanced control system, a better turbo match, improved air and fuel mixing, and a more sophisticated combustion recipe to provide: - Lowest engine-out emissions - Highest fuel efficiency - Improved altitude and speed turndown - Stable load acceptance and load rejection

Advanced Digital Engine Management


ADEM A3 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM A3 has improved: user interface, display system, shutdown controls, and system diagnostics.

Full Range of Attachments


Large variety of factory-installed engine attachments reduces packaging time.

Quality


Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network


  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

World-class Product Support Offered Through Global Cat Dealer Network


  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

EQUIPMENT
Standard Equipment

Air Inlet System
  • Axial Flow Air cleaner
  • Cleanable
  • Intermediate-duty with service indicator
Control System
  • ADEM A3 with integrated electronic throttle control
  • Control panel
Cooling System
  • Two-stage charge air cooling
  • Thermostats and housing
  • Engine-driven jacket and aftercooler water pump
  • Stainless steel aftercooler cores
Exhaust System
  • Dry exhaust manifolds
  • Dry exhaust elbow
Flywheels and Flywheel Housings
  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation
Fuel System
  • 7-50 psi gas supply
  • Fuel system is sized for 800 to 1200 btu/scf (31.5 to 47.2 MJ/Nm3)
  • Electronic fuel metering valve
  • Gas pressure regulator
  • Gas shutoff valve (GSOV)
Ignition System
  • ADEM A3
Lubrication System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — 143 gal
  • Drain valve
  • Oil sampling valve
  • Turbo oil accumulator
Mounting System
  • Engine mounting rails - 330.2 mm (13 in) industrial-type
Power Take-Offs
  • Front housing — two-sided
  • Front lower LH, RH, and upper RH accessory drives
General
  • Paint — Cat yellow
  • Crankshaft vibration damper and guard
  • CSA Certification, Class 1 Division 2, Group D - electrical system and instrumentation - includes ADEM A3 and control panel

Optional Equipment

Air Inlet System
  • Round air inlet adaptors
Charging System
  • Charging alternator - CSA approved 24V, 65 A
Cooling System
  • Flexible connections
Exhaust System
  • Flexible fittings
  • Flange and expander
Fuel System
  • Gas filter
Instrumentation
  • Communications module
Lubrication System
  • Lubricating oil
  • Oil bypass filter
  • Air prelube pump
Power Take-Offs
  • Front stub shaft
  • Pulleys
  • Double damper
Protection System
  • Explosion relief valves
  • Secondary GSOV
Starting System
  • Air starting motor with controls (90 psi or 150 psi)
  • API B16.3 compliant piping
  • Jacket water heater
  • Barring group
General
  • Special paint
  • Torsional vibration analysis
EU Certification
  • EEC DOI certification
Support
  • Factory commissioning