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Studies on Fundamental Characteristics - Comparison of Unit Injector and Pump-Line-Nozzle Injection Systems
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English
Abstract
We have investigated the fundamental characteristics of unit injectors and pump-line-nozzle systems theoretically by a graphical analysis of characteristic lines. We have confirmed the higher potential of unit injectors for higher injection pressure, compared with pump-line-nozzle systems. It can be said that the unit injector has the ability to reach higher injection pressures with smaller drive system and less power loss than that of pump-line-nozzle systems.
Furthermore, we have obtained basic views on how to improve the defective delivery characteristics in the low-speed region by a simulation method and with experiments. We have confirmed that modulus of rigidty in the driving system influences not only injection pressure but also injection mode.
Authors
Citation
Ichihashi, I., Takaishi, T., Tosa, Y., and Nagae, Y., "Studies on Fundamental Characteristics - Comparison of Unit Injector and Pump-Line-Nozzle Injection Systems," SAE Technical Paper 920629, 1992, https://doi.org/10.4271/920629.Also In
References
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