A few weeks ago, we just build a small element of injector. We made some tests to determinate its mass flow rate in function of pressure drop (this graph gave us injector's Discharge Coefficient Cd).
One of big advantages of centrifugal Injector is its mixture efficience in comparison of impinging jet.
Due to its complexity, centrifugal injector are not so common for amateur. But we are trying to overcome the difficulties of developing. Our first injector had 1,6mm of tangential holes, with a total of 6 holes distributed around vortex chamber (separated to 60 degrees).
But today we just finish our second centrifugal injector. It have six 0,8mm tangential holes around vortex chamber.
Our first injector have a 60g/s mass flow rate at pressure drop of 2 atm. We are developing now a device to measure this parameter and its mass flow distribution in radial and axial direction.
We will test this new injector along this week and soon as possible we will test this new injector an compare both with its respective calculations.
Below is the video of our first injector test (without much criterion yet).
