An Investigation into the Use of Fluidic Devices as Gas Fuel Injectors for Natural Gas Engines

Q. Huang; R. Chen

doi:10.4271/960768

1996-02-01

An Investigation into the Use of Fluidic Devices as Gas Fuel Injectors for Natural Gas Engines 960768

A novel gas fuel injector system based on the use of monostable fluidic devices is described in this paper. The proposed system consists of non-moving-part fluidic devices which are capable of operating in a Pulse Width Modulated (PWM) control mode and of handling a large amount of gas flow for engine operations. The system also includes an electro-fluidic interface for fluidic switching and air-gas mixing nozzles for better mixing quality.

Two prototype fluidic injector units were produced and their steady-state and dynamic characteristics were evaluated on a laboratory test rig. The results were compared with those from several commercial gas injectors and it was found that the fluidic injector has a faster dynamic response and a smaller cycle-cycle variations.

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An Investigation into the Use of Fluidic Devices as Gas Fuel Injectors for Natural Gas Engines 960768

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