ACERT TECHNOLOGY The D7R features a Cat C9 engine with ACERTÂ ™ technology. This engine utilizes a set of innovations developed by Caterpillar that enable advanced electronic management, precision fuel injection and optimized air management for exceptional performance. reduced emissions. In order to enable our customers to work in compliance with the new global regulatory requirements, the C9 engine, equipped with ACERT technology, has been certified to comply with Chinese Tier 2 emission standards (GB 20891-2007 ), which is equivalent to Tier 2 EPA / EU Level II.

FUEL SUPPLY The multiple injection fuel supply controls the combustion cycle with a high degree of accuracy. This control lowers combustion chamber temperatures to reduce pollutant emissions and results in higher fuel efficiency per liter of fuel. The hydraulically controlled electronic fuel injector (HEUI ™) fuel system manages injection pressure for all engine operating regimes. It allows complete control of the timing, duration and pressure of the injection

COOLING SYSTEM The brand new cooling system incorporates an engine radiator, an air-to-air aftercooler (ATAAC) and a hydraulic oil cooler. The engine radiator consists of two bar plate coolers connected at the top by a hose. The aluminum bar plate structure reinforces its resistance to clogging by debris, abrasion and corrosion.