Hello guys. This is a very interesting development for the jet community.
Gaspar has managed to create a 100% digital control link on his engines.
By this I mean: Digital ECU, digital serial bus, digital brushless starter motor and digital brushless pump.
The first 3 were already available on the M140X. However the brushless pump is the last component that was missing for a fully digital control system.
This is now done and the following benefit of a super fast fully digital control loop are available:
The super high cadence ECU processor coupled to the high bandwidth Xbus digital serial bus enables to pilot brushless digital starter motor and fuel pump
pole by pole.
This means the following for the starter motor:
A much higher starting torque giving a more position clutch engagement and less clutch and o'ring wear.
A punchier starting thanks to the motor torque.
A more positive starter motor disengagement.
A more clever piloting of the starting cycle.
For the pump, the following benefits are achieved:
A very precise control of the fuel metering since the ECU can pilot the pump pole by pole and control resolution is 1 RPM! Fuel metering s now to the milliliter!
A very fast change in the fuel flow output. The fuel flow is monitored 100 times per minute and precisely altered as soon as change in the combustion cycle is detected
In practice this means a much more stable combustion cycle. This is especially important for operating the engine in extreme outside air conditions. Very cold or very warm and humid, as well as in high density altitude conditions are not a problem for the new engine. Also, Idle regime is even more stable than before.
The brushless pump itself is a professional grade type. It features two ball bearings, automotive seals and reinforced pump gears.
The new system is available on the Merlin M140X that is now called M140XBL.
http://www.ultimate-jets.net/collect...rlin-m140x-mk2
The fully digital M100XBL will come later on and we will put it on the web site when available.
A big BRAVO to Gaspar and his team for setting the standards on the market a BIG step higher!