1995-08-01

A CNG Specific Fuel Injector Using Latching Solenoid Technology 951914

An advanced fuel injector designed specifically for low energy density gaseous fuels has been developed which demonstrates compelling performance advantages over fuel injectors utilizing conventional solenoid technology. The injector incorporates design features that are necessary to optimize the performance for fuels such as CNG, LNG, and propane. This paper provides a background of magnetic latching technology and addresses the application of the technology to an advanced, pressure balanced, gaseous fuel injector. Performance of the injector will be discussed in detail as will features of the injector specifically adapted for gaseous applications. The ability of the injector to solve fuel metering problems facing the industry, such as turn down ratio limitations, accuracy, durability, and compatibility with existing engine electronics, are addressed.

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