6068CG550

6068CG550

  • 6068CG550
  • PowerTech™ PSS
  • Standby: 202-241 kW (271-323 hp)
    @ 1500-1800 rpm
  • Prime: 184-197 kW (247-264 hp)
    @ 1500-1800 rpm
  • Dual frequency available

    Specifications

    Emissions Certifications

    EPA Final Tier 4 / EU Stage V engines 

    General engine data

    Model6068CG550
    Number of cylinders6
    Displacement-- L (cu in)6.8 (415)
    Bore and Stroke-- mm (in)106 x 127 (4.2 x 5.0)
    Compression Ratio16.7 : 1
    Engine TypeIn-line, 4-cycle
    AspirationTurbocharged and air-to-air aftercooled
    Length - mm (in)1140 (44.9)
    Width-- mm (in)780 (30.7)
    Height-- mm (in)1205 (47.4)
    Weight, dry - kg (lb)785 (1731)

    ATD

    DOC/DPFSize 5
    SCR CatalystSize 5

    Performance data range

    Hz (rpm)60 ( 1800 ) 50 ( 1500 )
    Generator Efficiency %93 93
    Power Factor0.8 0.8
    Engine power - Prime kW197 187
    Engine power - Prime hp264 247
    Engine power - Standby kW241 202
    Engine power - Standby hp323 271
    Rated Fan Power - kW14.4 10.1
    Rated Fan Power - hp19.3 13.5
    Calculated generator set output - Prime kWe173 162
    Calculated generator set output - Prime kVA216 202
    Calculated generator set output - Standby kWe191 178
    Calculated generator set output - Standby kVA239 223

    Features

    • Air is first drawn into the low-pressure turbocharger and compressed to a higher pressure. The compressed air is then drawn into the high-pressure turbocharger, where the air is further compressed. The high-pressure air is then routed through a charge air cooler and into the engine's intake manifold. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds — lowering stress on turbocharger components and improving reliability. Series turbocharging delivers more boost pressure than single turbocharger configurations, which results in higher power density, improved low-speed torque, and improved high altitude operation.

    • This system is the Best Available Control Technology (BACT) for particulates that delivers premium block load acceptance characteristics, utilizing a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). The DOC reacts with exhaust gases to reduce carbon monoxide, hydrocarbons, and some particulate matter (PM). The downstream DPF traps and holds the remaining PM. Trapped particles are oxidized within the DPF through a continuous cleaning process called passive regeneration. Passive regeneration occurs during normal operating conditions when heat from the exhaust stream, and catalysts within the exhaust filter, trigger the oxidation of the trapped PM. If passive regeneration cannot be achieved due to low temperature, load, or speed, then PM is removed using active regeneration — an automatic cleaning process controlled by the exhaust temperature management system.

    • EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx.

    • John Deere engines feature an SCR system that utilizes a urea-based additive, sometimes referred to as diesel exhaust fluid (DEF) to meet Stage V emission standards. A chemical reaction in the SCR catalyst converts urea and NOx emissions into nitrogen and water vapor.

    • The HPCR fuel system provides variable common-rail pressure and high injection pressures. It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.

    • This is the most efficient method of cooling intake air to help reduce engine emissions while maintaining low-speed torque, transient response time, and peak torque. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.

    • The 4-valve cylinder head provides excellent airflow resulting in excellent low-speed torque and transient response.

    • Lower installed cost

    • Faster engine control unit (ECU) manages both the engine and the exhaust filter

    • Replaceable (wet) cylinder liners

    • Glow plugs cold start aid