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Rated Injection Pressure: The rated injection pressure of this fuel injection pump is an important parameter. For a fuel injection pump designed for the 4JJ1 diesel engine, it usually has a rated injection pressure in the range of 1000 – 2000 sbarra (100 – 200 MPA). This high injection pressure is necessary to atomize the diesel fuel effectively, ensuring efficient combustion within the engine cylinders.
Maximum Injection Pressure: The maximum injection pressure that the pump can generate is typically higher than the rated pressure, often reaching up to 2500 sbarra (250 MPA) or more for short periods. This additional pressure capacity allows the pump to handle different operating conditions and requirements of the engine, such as during high-load or transient operations.
