Newly designed Komatsu Variable Geometry
Turbocharger (KVGT)A newly designed variable geometry turbocharger features Komatsu proprietary technology that varies the
air-flow and delivers optimum air quantity to the engine combustion chamber under all speed and load conditions. The result is cleaner exhaust gas and improved fuel economy while maintaining power and performance. (SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6)
Newly designed Variable Flow Turbocharger (VFT)
A newly designed variable flow turbocharger features simple and reliable technology that varies the intake airflow. Exhaust turbine wheel speed is controlled by flow control valve and it enables to deliver optimum air quantity to the engine combustion chamber under all speed and load conditions. The result is cleaner exhaust gas while maintaining power and performance. (SAA4D95LE-6)
A newly designed variable flow turbocharger features simple and reliable technology that varies the intake airflow. Exhaust turbine wheel speed is controlled by flow control valve and it enables to deliver optimum air quantity to the engine combustion chamber under all speed and load conditions. The result is cleaner exhaust gas while maintaining power and performance. (SAA4D95LE-6)
Newly designed Komatsu Diesel Particulate Filter (KDPF)
Komatsu has designed and developed a high efficiency diesel particulate filter that captures more than 90% of PM. Passive and active regeneration is initiated automatically by the engine controller as needed to burn the particulates while the engine is running allowing uninterrupted machine operation. A special oxidation catalyst with fuel injection system eliminates the need for a traditional fuel burner thereby reducing maintenance costs and increasing reliability. (SAA6D107E-2, SAA6D114E-5, SAA6D125E-6,
SAA6D140E-6).
Komatsu has designed and developed a high efficiency diesel particulate filter that captures more than 90% of PM. Passive and active regeneration is initiated automatically by the engine controller as needed to burn the particulates while the engine is running allowing uninterrupted machine operation. A special oxidation catalyst with fuel injection system eliminates the need for a traditional fuel burner thereby reducing maintenance costs and increasing reliability. (SAA6D107E-2, SAA6D114E-5, SAA6D125E-6,
SAA6D140E-6).
Newly designed Komatsu Diesel Oxidation Catalyst (KDOC)
Komatsu has designed and developed a simple and high efficiency diesel oxidation catalyst. This system enables to eliminate the need of the PM regeneration and to simplify the engine control system. High performance exhaust noise silencer is also integrated and it contributes the engine noise reduction. (SAA4D95LE-6)
Komatsu has designed and developed a simple and high efficiency diesel oxidation catalyst. This system enables to eliminate the need of the PM regeneration and to simplify the engine control system. High performance exhaust noise silencer is also integrated and it contributes the engine noise reduction. (SAA4D95LE-6)
Heavy duty High Pressure Common Rail (HPCR) Fuel
Injection System
Computer controlled heavy duty HPCR system delivers a precise quantity of pressurized fuel into the engine combustion chamber using multiple injections to achieve complete fuel burn and reduce exhaust emissions. Fuel injector life has been improved through the use of ultrahard wear resistant materials such as diamond-like carbon. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6).
Injection System
Computer controlled heavy duty HPCR system delivers a precise quantity of pressurized fuel into the engine combustion chamber using multiple injections to achieve complete fuel burn and reduce exhaust emissions. Fuel injector life has been improved through the use of ultrahard wear resistant materials such as diamond-like carbon. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6).
Larger more robust cooled Exhaust Gas Recirculation (EGR) System
Cooled EGR, a technology well-proven in existing Komatsu engines, has increased capacity to further reduce NOx to Tier 4 levels. Larger more robust components ensure reliable performance during the demanding work conditions of construction equipment. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E 5, SAA6D125E-6, SAA6D140E-6)
Cooled EGR, a technology well-proven in existing Komatsu engines, has increased capacity to further reduce NOx to Tier 4 levels. Larger more robust components ensure reliable performance during the demanding work conditions of construction equipment. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E 5, SAA6D125E-6, SAA6D140E-6)
Redesigned combustion chamber at top of piston
The fuel/air combustion chamber located at the top of the engine piston has a new shape designed to improve combustion and further reduce NOx, PM, fuel consumption and noise. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6)
The fuel/air combustion chamber located at the top of the engine piston has a new shape designed to improve combustion and further reduce NOx, PM, fuel consumption and noise. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6)
Komatsu Closed Crankcase Ventilation (KCCV)
Oil mist trap efficiency is significantly increased from previous “Breather”s, from around 50% trap efficiency to 95% trap efficiency. Almost oil mist free crankcase gas (blow-by gas) is delivered back to the intake. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6)
Oil mist trap efficiency is significantly increased from previous “Breather”s, from around 50% trap efficiency to 95% trap efficiency. Almost oil mist free crankcase gas (blow-by gas) is delivered back to the intake. (SAA4D95LE-6, SAA6D107E-2, SAA6D114E-5, SAA6D125E-6, SAA6D140E-6)
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