Engine Model: D902, D902 - E2B, D902 - E3B, D902 - E4B
Manufacturer: Kubota
Engine Type: Diesel engine, widely used in various applications such as small agricultural machinery, generators, and light - duty construction equipment.
2. Performance Specifications
Power Output
Rated Power: The rated power of the D902 series engines typically ranges from around 16 - 24.8 horsepower (11.9 - 18.5 kW). The specific power output depends on the model and its intended application. For example, the D902 - E2B might have a rated power of around 18.5 kW, while the D902 - E4B could have a slightly different value due to different configurations.
Maximum Power: Under certain boost conditions or short - term overload situations, the engine can produce a bit more power, but this is usually limited to avoid damage and ensure reliable operation.
Speed
Rated RPM: The engines usually have a rated speed in the range of 2800 - 3600 revolutions per minute (RPM). The specific rated speed varies depending on the model and its application. For example, in generator applications, the rated speed might be set to achieve a specific electrical output frequency (such as 3000 RPM for 50Hz or 3600 RPM for 60Hz power generation).
3. Mechanical Specifications
Configuration
Cylinder Arrangement: Vertical, single - cylinder configuration. This simple design provides compactness and ease of installation in various equipment.
Bore and Stroke: The bore diameter is typically around 90 mm and the stroke length around 78 mm. These dimensions play a crucial role in determining the engine's displacement and combustion characteristics.
Displacement: The displacement of the D902 series engines is approximately 0.479 liters. Calculated using the formula V = π/4 × (bore)²× stroke.
