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Test Rig With E Type Insert

March 13, 2019 V2 Rocket History 0
Test Rig With E Type Insert

Single nozzle insert test rig used by V2 Rocket History to test spray shape and volume at fluid supply pressures consistent with fuel pressures specified for the injector head of summer 1944. A 2131E fuel injector insert is installed in the holder at the front of the test rig, but as the thread was the same on all inserts the nozzle can be changed for other models easily with aid of a pin spanner. See video for a demonstration of this simple test system.

Album: Testing fuel injectors

Tags: #Test procedures

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3305D Water Test Comparison

March 13, 2019 V2 Rocket History 0
3305D Water Test Comparison

3305D injector insert 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 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 – unlike the image above, where the injector face is clear of drips.

Album: Testing fuel injectors

Categories: Combustion

Tags: #Test procedures #Combustion and injection #Propellent injector system