Engine Model: D722
Manufacturer: Kubota
Engine Type: Four - stroke, diesel - fueled, vertical - cylinder engine. It's designed for a variety of applications including small agricultural machinery, generators, and light - duty construction equipment.
2. Performance Specifications
Power Output
Rated Power: Usually ranges from around 11.8 to 16.4 horsepower (8.8 - 12.2 kW). The exact power output can vary depending on factors such as engine speed and the specific configuration for different applications.
Torque: The engine provides a useful amount of torque, with peak torque typically available at a mid - range of engine speeds. This torque is crucial for applications requiring pulling or driving force.
Speed
Rated RPM (Revolutions per Minute): Typically in the range of 3000 - 3600 RPM. This speed range is optimized to provide a balance between power output, fuel efficiency, and the operational requirements of the equipment it powers.
3. Mechanical Specifications
Cylinder Configuration
Number of Cylinders: 2 - cylinder vertical arrangement. This provides a smoother operation compared to a single - cylinder engine and is more compact than engines with more cylinders.
Bore and Stroke: The bore (cylinder diameter) is approximately 72 mm, and the stroke (distance the piston travels) is around 73.6 mm. These dimensions are important in determining the engine's displacement and combustion characteristics.
Displacement: The total displacement of the engine is about 0.619 liters. It's calculated using the formula: Displacement = (π/4) × (bore)² × stroke × number of cylinders.
Engine Weight
Dry Weight: The dry weight (without coolant, fuel, and oil) is generally around 100 - 120 kg. The weight can vary depending on additional components such as the fuel injection system and alternator.
Wet Weight: With all fluids (coolant, fuel, and oil) filled to the recommended levels, the weight is approximately 120 - 140 kg.
