Kubota Engine D722-EF18

The Kubota Engine D722-EF18 is a compact and high-performance diesel engine, which is part of Kubota's Super Mini series. Here is an introduction: ### Basic Information - **Manufacturer**: Kubota. - **Cylinder Arrangement**: In-line three-cylinder. - **Cooling Method**: Water-cooled. - **Displacement**: 0.719 liters (719 cc). - **Dimensions**: Approximately 426 mm in length, 398 mm in width, and 519 mm in height. - **Weight**: Around 63 kg. ### Technical Characteristics - **Working Principle**: It is a four-stroke engine, working in the order of intake, compression, power, and exhaust, which ensures efficient power output and good fuel economy. - **Combustion System**: Adopts a spherical combustion chamber with E-TVCS (Kubota's Electronic - Twin Vortex Combustion System) indirect injection technology, which can improve combustion efficiency, reduce emissions, and enhance engine startability. - **Fuel Injection System**: Equipped with a Bosch MD mini fuel injection pump and a Bosch throttle type injection nozzle, which can accurately control the fuel injection quantity and injection timing, ensuring optimal performance and fuel efficiency. - **Compression Ratio**: The compression ratio is 23.0:1, which helps to improve power output and fuel economy. - **Starting System**: It uses an electric starting system with a 12V, 0.8kW starting motor. Additionally, there is a glow plug in the combustion chamber to improve cold-start capability. - **Governor**: It is equipped with a centrifugal ball mechanical governor or an all-speed mechanical governor to maintain consistent engine speed under varying loads. ### Performance Parameters - **Power Output**: Approximately 14.9 kW (20 hp) at 3600 rpm. - **Torque**: 45.8 N·m at 2600 rpm. ### Emission Standards The engine complies with EPA/CARB Tier 4 emissions standards, which means it has relatively low exhaust emissions and is environmentally friendly. ### Applications The Kubota D722-EF18 engine is widely used in various small agricultural and industrial equipment, such as tractors, mowers, excavators, and generators, due to its compact size, reliability, and efficiency.