The Flow Characteristics of Valve Atomizers in Diesel Fuel Injectors

The formation of high-flow, short-term pulses of fuel injection is the development trend of fuel equipment for diesel engines.  In most cases, this is done using modern electronically controlled fuel injection equipment of the battery type where electronically controlled nozzles with needle atomizers serve as actuators. They are well researched but have a complex and expensive design. In addition to aforementioned type, pin and valve atomizers can be used. The latter ones are not sufficiently studied but could be used to significantly widen technological possibilities of the fuel injection process, hence the current research of the flow characteristics of valve fuel atomizers is conducted. It is shown that the hydraulic characteristics of valve atomizers surpass those of the needle type due to the near absence of a zone characterizing losses in the effective flow area.

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