Geometry Optimization Of Differential Pressure Carburetor Model Using CFD Analysis
Response data of the differential pressure carburetor were obtained at similar test conditions and procedures as explained for the full-load test, for transients of loads of 80%, 60% and 25% of the full-load.
The results obtained of differential pressure carburetor from the engine test run conditions shows that the controller has maintained stoichiometric mixture at different constant load conditions and at load throw off conditions.
There are three basic types of fuel metering systems used in piston aircraft engines: the float-type carburetor, the pressure carburetor and fuel injection.
And that accounts for why there is less venturi icing in the pressure carburetor system.
With a pressure carburetor, ice is seldom collected in VFR weather (as it can be by the float carburetor, when moisture, temperature and fuel mixture conditions are right).
As with the pressure carburetor, traditional "carb ice" can't happen with a fuel injection system but other forms of icing can.