Fuel injector 3304D water test comparison

Fuel injector 3304D water test comparison

3304D higher volume injector insert (with central jet) showing comparison nebular and jet stream pattern with high and low pressure. Top image shows correct hollow cone-shaped aerosol effect from central 6mm orifice, that is also creating a fine mist around and within the cone, and strong single central (non-swirl) jet can be seen as well as 4 steady steams emanating from cooling pores. Bottom image shows the effect of reduced pressure: a dropping poorly formed cone, composed of larger slower moving droplets, and a tendency for the thicker spray to combine and cause 'dribbeling' with much fluid failing to clear the injector face. The appearance of central jet however seem largely unchanged.

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At V2 Rocket History our aim is to investigate the history and technology of the A4-V2 missile, and share the results in the most accessible and engaging way possible. Our general approach is to highlight the engineering and industrial aspects of the subject.

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