Another Update...
First... I didn't do anything with the glow plug so far. Need to set up a combustor like
object first. I thought of a tin can, the tip of a spray bottle and an air compressor.
I just want to know if the glow plug will work properly in a similar invironment.
...I'll give it a try comming weekend.
Now let's see what's up with both starter circuits of my engine.
As you can read on a later post on
page 1 there are two, almost similar, circuits in my
starter box. I figured out that
Schematic 1 is used for startup purpose which leaves the
existence of Schematic 2 questionable. After a long time and lot more knowledge I had
a look a t it again and *tadaaa!* solution! It as simple as it could be.
If you have a closer look onto the photo of the starter box there is
K2 missing in
Schematic 2
First I thought a normal realy (like K1) is used. But if you replace it with a timer like K5 in
Schematic 1, you'll get exactly the same circuit (in function not in parts).
Since I have a complete documentation for my Ru19A-300 engine I can adapt
some techniques to the Gazelle engine.
Current startup:If i turn on the main switch the current flows through the coil first. Thus the starter motor
preloads every gear in the head and turns the turbine slowly.
After the timer-relay counted down the full 24V are sent to the starter and the turbine
turns up. There are huge currents flowing through all the parts and I think it's not very
good at all.
Startup improvement:The Ru19 has a two sage starting cycle. First there are 12V sent to the starter motor
and he turns up to half idle. Then after some time the full 24V ar switched on and the
turbine turns up to idle.
In my eyes this is a much more smooth starting. If I could adapt this to the Gazelle
engine it would surely improve the starting cycle. However I'm not sure if the starter
is even able to anything with 12V. Therefore the theory is open until I did a proper
test on it.
As always I'm very interested in your thoughts on all this.
I'd appreciate to get some feedback