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Development of Fuel Injector and Fuel Pump for a Fuel Injection System to Use in Small Motorcycles

机译：用于燃料喷射系统的燃料喷射器和燃料泵在小型摩托车中使用

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Amidst the growing concerns for the global environment and the escalating demands for low exhaust emissions and high fuel economy small motorcycles, the electronically controlled fuel injection system (hereafter referred to as FI system) is making its appearance as an effective device to reduce emissions while improving fuel economy by precisely controlling the air-to-fuel ratio. Fuel injectors and fuel pumps currently used in small motorcycle FI systems were originally derived from multi-cylinder engine automobile and large motorcycle FI system components, and therefore have not been necessarily suitable for small motorcycle application. Recently, the authors have created a compact yet efficient fuel injector and fuel pump for specifically for application in small motorcycle FI systems, compatible for various engine displacements and configurations. For the fuel injector, the spray form was optimized using fuel spray simulation software and the appropriate magnetic circuit was achieved through the implementation of a new magnetic material specification. Thus, a compact, easy-to-mount injector, applicable for engine displacements from 50 to 900 cm{sup}3, was developed. For the fuel pump, efficiency was improved by 4% by the improvement of pump motor efficiency and the optimization of pump rotor shape. As a result, while maintaining the same size as a conventional fuel pump, the power consumption was reduced by 25%.
机译：在全球环境的越来越多的担忧中以及对低排放和高燃料经济性的升级需求的升级，电子控制的燃料喷射系统（以下简称为FI系统）正在作为一种有效的装置，以减少排放的有效装置通过精确地控制空气到燃料比来燃料经济性。目前用于小型摩托车FI系统的燃料喷射器和燃料泵最初来自多缸发动机汽车和大型摩托车FI系统组件，因此不一定适用于小型摩托车应用。最近，作者创造了一种紧凑且有效的燃料喷射器和燃料泵，专门用于小型摩托车Fi系统，兼容各种发动机位移和配置。对于燃料喷射器，使用燃料喷射仿真软件优化喷雾形式，并通过实施新的磁性材料规范来实现适当的磁路。因此，开发了一种紧凑，易于安装的注射器，适用于从50至900cm {sup} 3的发动机位移。对于燃油泵，通过提高泵电机效率和泵转子形状的优化，效率提高了4％。结果，在保持与传统燃料泵相同的尺寸的同时，功耗降低了25％。

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