Offshore Generator Sets:

8CM34DF

8CM34DF Generator Set
Height
213.1 in
Length
425 in³
Width
102.4 in
Aspiration
Turbocharged Aftercooler

The 8CM34DF is based on the successful CM32C medium speed engine, Caterpillar Motoren designed the CM34DF to meet and exceed the CM32C reliability and lifetime expectations, while maintaining its class leading position regarding operational efficiency and reliability. The CM34DF is an ideal solution as main power for offshore production platforms and top sides. The CM34DF clean design allows fast and easy access to system and components, supporting the operation, service and maintenance simplicity. Designed to operate on gaseous fuel with methane numbers down to MN 50 and liquid fuels as MGO, MDO, heavy fuels and crude oil. The CM34DF is certified to IMO Tier II standards and meets proposed IMO Tier III emissions levels while operating in gas mode. Care and attention was paid to customers demand for a safe and reliable operation at varying engine loads and gas qualities.



Product Specs

  • Dimensions

  • Height
    213.1in
    Length
    425in³
    Width
    102.4in
    Length
    425in3
    Width
    102.4in
    Height
    213.1in
  • Engine Specifications

  • Aspiration
    Turbocharged Aftercooler
    Bore
    13.4in
    Displacement
    20382in³
    Engine Control
    Electronic
    Stroke
    18.1in
    Weight
    187000lb
    Aspiration
    Turbocharged Aftercooler
    Engine Control
    Electronic
    Weight
    187000lbs
    Stroke
    18.1in
    Bore
    13.4in
    Displacement
    20382in3
    Minimum Rating
    4800kV·A
    Maximum Rating
    4800kV·A
    Emissions
    IMO Tier II

Equipment

  • Engine
    • Motor-driven barring gear, fitted on engine
    • Emergency shutdown equipment with pushbutton for manual emergency stop
  • Cylinder Heads
    • Fuel injector and integrated gas admission valve with easy service and maintenance access
    • Cylinder pressure sensors for highest operational reliability and efficiency, replacing conventional knocking sensor technology
    • Piston, rings and liners designed for operation on gas and liquid fuels
  • Turbocharger
    • Optimized engine efficiency in gas and diesel operation
    • Blow-off valve and waste gate technology for optimized air-fuel ratio control
  • Gas System
    • Double-walled gas piping to support an inherently safe engine room concept
    • Leakage detection
    • Gas valve unit
    • Segmented gas detection system on request
  • Micro Pilot Fuel Injection System
    • Gear driven high pressure fuel pump and filter system with easy service access
    • Reliability combined with service and maintenance simplicity, through individual ignition fuel injector and “in-cylinder head” integrated ignition fuel return pipes.
  • Exhaust System
    • Front-mounted turbocharger at free end with transition nozzle (0 degrees from the vertical and away from engine),
    • Expansion joint separate
    • Separate silencer and spark arrester
  • Fresh Cooling Water System
    • HT pump, fitted on engine
    • LT pump, separate, vertical design, electric motor driven
    • HT thermostat, remote-mounted, electric controlled
    • Cooling water preheating equipment, fitted on base frame
  • Lubricating Oil System
    • Plate cooler, fitted on engine
    • Force pump, fitted on engine
    • Pre-lubrication pump, fitted on base frame, electric motor driven
    • Automatic back-flushing filter
    • Duplex filter with differential pressure indication, fitted on engine
    • Pressure control valve, fitted on engine
    • Thermostat, remote-mounted, electric controlled
  • Connections
    • Set of connecting parts between flange coupling and flywheel
    • Flexible flange coupling between engine and generator
    • Base frame with flywheel guard and incorporating lube oil sump tank, for engine and generator
    • Mounting of engine and generator on the base frame
    • Set of bonded rubber rails for resilient mounting of the base frame
    • Set of flexible pipe connections
  • Instrumentation
    • Gauge board with liquid-dampened pressure gauges for: fuel, lubricating oil, fresh water, starting air and charge air.
    • On-engine thermometers for fuel, lubricating oil, fresh water and charge air
    • Electric remote speed indicator
    • Turbocharger and remote speed indicator
    • Exhaust gas temperature indicator
  • Monitoring
    • Manual control on engine, including: control panel with start/stop key, speed setting device, mechanical shutdown device, changeover of control functions from engine to remote control
    • Starting solenoid valve on engine, 24 V DC
    • Separate electronic speed governor

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