Andrew Germaney - Kamps Microturbine

Andy is a friend and lives close by.

This motor is built from a plan (book) and uses car turbocharger compressor wheel.

Runs great on propane, starts with a hairdryer, exhaust temp, very low. Unfortunately on liquid fuel it combusts badly and surges and sometimes it blows itself out!

Has tried straight sticks from the rear of the combustion chamber, and even preheating the fuel to over 300 degrees before it enters the motor, all to no effect. Also he tried blocking off the rear (large) dilution holes which moved combustion right to the front of the chamber, but still with uneven combustion, and blowing out etc.

 

Great Picture of Andy's hand, holding the part finished KJ-66 Combustor that will save the Kamps engine...

Don't hold your breath! !

Jesus Artes de Arcos says it works great, we will see!

looks just like the old one to me but what do I know....

NEWS!

 

 

Old Combustor showing fuel sticks from rear.r.

 

Kamps at 6psi (Just less than 0.5bar) - around 1/2 power on paraffin, whistling away merrily ...

Andy is now building a new motor using this reconditioned truck turbo rotor. The glass that it is sat on is a pint glass so this rotor is much bigger that the Kamps or KJ-66one. Complete Rotor for £25 Pounds UK Sterling! I want one...

Sizes are as follows:

Compressor

Diameter 76mm

Blade Height 5mm

Intake Diameter 54mm

Turbine Wheel radial inflow type.

Inlet Tip height 12mm

Diameter OD. 81mm

Outlet Nozzle diameter 64mm

Due to the much higher efficiency of bigger compressors and turbine wheels (due to a strange aerodynamic effect - called Reynolds Numbers, and less losses proportionally due to the running clearances) this motor should be a smooth and powerful device He is going to design a reverse flow combustion chamber as used in my Solent, so combustion problems caused by the short chamber used in most model sized engines should be much less.

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