Yanmar 3TNV76 engine

Yanmar 3TNV76 engine performance and features
Power performance:
Power performance: The rated power is usually around 10.7-20.4 kilowatts, and the specific value varies depending on the application scenario and equipment adjustment. For example, on some small excavators, it can provide stable and sufficient power for the equipment to drive the equipment to complete excavation, loading and other actions.
Speed ​​adaptation: Common rated speeds include 2200 rpm, 2500 rpm, 3000 rpm and other different versions, which can be flexibly adapted to the working needs of various types of mechanical equipment. Lower speeds are conducive to reducing engine wear and extending service life; higher speeds can output greater power in a short time, meeting the urgent power needs of the equipment under specific working conditions.
Structural design:
Three-cylinder layout: The in-line three-cylinder design is adopted. Compared with a single-cylinder engine, the power output is more stable, which effectively reduces the vibration of the equipment during operation, makes the operation process more stable and smooth, and helps to improve the comfort of the operator and the working accuracy of the equipment. At the same time, the three-cylinder structure is more compact than the multi-cylinder engine under the premise of ensuring power, which is convenient for installation in small equipment with limited space, and improves the space utilization rate of the equipment.
Reasonable cylinder diameter and stroke: The cylinder diameter is 76 mm and the stroke is 82 mm. This size design allows the fuel and air to be fully mixed during the combustion process of the engine to achieve efficient combustion. The fuel energy can be more fully converted into mechanical energy, providing good power output for the engine, while also helping to improve fuel economy and reduce the operating cost of the equipment.
Fuel system:
Indirect injection technology: Using the indirect injection combustion method, the fuel is first sprayed into the pre-combustion chamber, and the combustible mixture is formed in the pre-combustion chamber before entering the main combustion chamber for combustion. This method can make the fuel more evenly distributed in the main combustion chamber, the combustion process is softer and more stable, reduce the occurrence of knocking, and improve the reliability and stability of the engine operation. At the same time, uniform combustion helps to improve fuel utilization, reduce fuel consumption, reduce exhaust emissions, and make the engine more environmentally friendly.
Strong fuel adaptability: The engine has good adaptability to fuels of different qualities. In some areas where the quality of fuel supply is unstable, or in special operating environments where non-standard fuel is used, normal operation can still be guaranteed, reducing the risk of engine failure due to fuel problems and improving the convenience and reliability of equipment use.
Environmental protection and emissions: The engine has passed the relevant exhaust and noise restriction certifications of the European Union (EU) and the US Environmental Protection Agency (EPA), and the emissions meet strict environmental protection standards, such as meeting EU stage V and other emission standards. During operation, it can effectively control the emission of harmful substances (such as nitrogen oxides, particulate matter, etc.) in the exhaust gas to reduce pollution to the environment. At the same time, it performs well in noise control and has low operating noise, which can meet the needs of work scenes with strict noise restrictions such as urban construction and indoor construction, and reduce interference with the surrounding environment and personnel.
Reliability and durability:
Selection of high-quality parts: As a well-known engine manufacturer, Yanmar uses a large number of high-quality parts in the production process of the 3TNV76 engine. For example, key components such as pistons, crankshafts, and connecting rods are made of high-strength and wear-resistant materials. After precision processing and strict quality inspection, they can ensure that they can still maintain good performance under long-term high-load operation, reduce the probability of component damage, and extend the overall service life of the engine.
Strict production process and testing: The production process follows strict process standards, and each process is carefully controlled. Before the engine leaves the factory, it must undergo a series of rigorous performance tests, durability tests, and reliability tests. For example, long-term operation tests are simulated under various harsh working conditions to ensure that the engine can work stably in various complex environments, thereby ensuring reliable product quality and meeting the long-term use needs of users under different working conditions.
Wide range of applications: With its outstanding performance characteristics, the 3TNV76 engine is widely used in many fields. In the field of small construction machinery, such as small excavators, loaders, rollers, etc., it provides reliable power for the equipment to meet its working needs in small spaces or operating scenarios with high mobility requirements; in the field of generator sets, it can be used as a power source to drive the generator to generate electricity, providing a stable power supply for small construction sites, field work sites, temporary power supply sites, etc.; it can also be used on some agricultural machinery and other equipment that have specific power requirements, helping related industries to operate efficiently.