I am currently building a water doping for 300 1992 turbo diesel (6 143 CV cylinders).
First editing and mistakes!
I started with a steel reactor (14 mm rod in 15 tube / 21 mm length 20 cm) in bypass of the exhaust tube and under the car to not completely modify my exhaust manifold and fault of place.
I had considered an injector spray (for gasoline engine) powered by a pump (Bosch for gasoline) modified stainless steel.
The control circuit was based either:
on an astable multivibrator NE555 thus generator of crenels controlled by the throttle control,
either by a piezoelectric sensor detecting the opening times of a diesel injector ...
For the arrival of "pantonized" gases I had made a simple copper tube (12 / 14) coming into the intake facing the turbo with a slight restriction on the rubber sheath.
Difficulty:
difficult to find a gas pump not immersed, removable and not too expensive,
the piezoelectric circuit is not easy to achieve for mechanical reasons and vibration filtering but it seems to detect the opening of an injector by the deformation of the steel pipe.
Errors (fatal!):
the bypass installation and a little far, does not give enough heat despite good insulation with rock wool,
and especially big mistake there is almost no depression to suck something, even narrowing a little more sheath entry turbo ...
And the steel for the tube etc it rust obviously!
So I redesigned my assembly and I'm building a rectangular box directly through the exhaust gas outlet of the turbo and containing 3 15 reactors cm length and 10 cm all 304 stainless steel rod, except inside the normal steel rod. The short throttle output of the turbo is sheathed in stainless steel tube as well. There is a slight restriction of the section for the exhaust to the output of the reactor box.
For suction I have already tried a throttle throttle by a weak enough spring, in the intake upstream of the turbo, there suction is strong from slow motion but it should not too much if the engine s 'choking.
The water supply spray is provided by a mower carburetor that is already modified (with resin) to reduce the diameter.
The heating of the water is provided either by a copper tube winding around the exhaust (as my first assembly) or by the cooling circuit more stable in temperature.
The reheating of the air will be done by the old reactor (downstream) devoid of its rod (thus the tube of 15 / 21).
The construction of the exhaust outlet and the stainless steel box is currently my big job because the place is measured. It is therefore necessary to provide curvatures etc for implantation ...!
And I am not a welder, trainer, boilermaker, mechanic, etc. so I train myself at the same time!
Well, I'm not ready to go up and visit Christophe ...
But I do not despair, and a big thank you to all for your testimony and to André for his wise advice.
See you.
Michel
Andrew wrote:Power supply with water carburetor and mini dry bubbler, if there is accumulation of water it becomes bubbler, but in normal function it is a carburettor with reheating dry bubbler.
The main disadvantage of this system is the many elbows, but the priority was the heat at the exit of the turbo for it to function at low speed.