Today’s off-highway diesel engines are impressively sophisticated and small. Engineered into equally intricate and compact construction equipment, these diesels are powerful, efficient, cost-effective and clean. Let’s take a look at three engines from Kubota, Cummins and Kohler.
Kubota’s Electronically Controlled D902-K Diesel Engine
Kubota’s D902-K electronically controlled diesel engine delivers 24.8 hp at 3,600 rpm with a maximum torque of 56.1 Nm at 2,600 rpm. This three-cylinder, liquid-cooled diesel engine has a bore and stroke of 2.83 by 2.90 in. and a displacement of 0.898 liters. Equipped with a one-of-a-kind common rail system developed exclusively for small engines, the electronically controlled D902-K comes with a new TVCR combustion system. The result is an engine that is compact, easy to mount and reduces the amount of black smoke to an undetectable level. The D902-K is EPA/CARB Tier 4, EU Stage V and China NR IV compliant.
Cummins F3.8 Performance Series
The Cummins F3.8 Performance Series engine is Stage V certified with high power density to boost industrial machine capability or support downsizing opportunities with up to 173 hp/129 kW of power. The F3.8 has torque range from 295 lb-ft/400 Nm up to 457 lb-ft/620 Nm and is proven in a wide range of construction equipment. The exceptional reliability of Cummins, supported by our unsurpassed dealer network.
Kohler’s K-HEM 1003 Hybrid Electrical and Mechanical Power Generator
Diesel meets electric on the K-HEM 1003, the Kohler unit that generates power using a combination of a KDW 1003 18-kW diesel engine, compliant with Stage V standards and without a DPF, and a 48-volt electric engine that guarantees 15 kW of peak power and 9 kW of continuous power. This means that the unit is capable of providing over 30 kW without the need for exhaust-gas aftertreatment systems. What’s more, K-HEM can operate as a generator for energy accumulation systems. The K-HEM hybrid is designed for equipment that is distinguished by intermittent duty operation cycles that call for power peaks (welders, mowers, tractors with implements, etc.) and machines that chiefly run continuous low load operation cycles (aerial platforms, forklifts, etc.).
