Doosan also added a mass airflow (MAF) sensor and exhaust brake to the engine to help meet Tier 4 emission standards. The mass airflow sensor allows the electronic control unit (ECU) to improve the management of airflow provided by the variable geometry turbocharger (VGT), and to optimize fuel delivery to the combustion chamber based on air intake volume and rpm.…
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Doosan Mini-Excavators
The new Tier 4-compliant Doosan DX63-3 and DX85R-3 excavators have been upgraded with a number of conveniences that provide operators with higher-precision controls, greater force and overall enhanced productivity. Comprehensive improvements to both the 6.3-metric-ton DX63-3 compact conventional tail swing excavator and the 8.5-metric-ton Doosan DX85R-3 reduced tail swing excavator include a blade float, multi-function joysticks, color instrumentation panel, Auto-Shift…
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