New OEM water injection user

[Richard L]

Guess who has adopted water injection on their car?

Answer (http://www.bmwblog.com/2015/02/13/world-premiere-bmw-m4-motogp-safety-car/)

[Flr Power]

BMW, unreal.

This might give a boost to your bussiness...

[HYDE16]

I saw that, really cool stuff! What's even more interesting is that the OE ECU is now controlling pump fuel injectors/pump and water injectors/pump. I'm interested to know the jets used and if they require service/cleaning. Also, the location and quantity of jets used.

It will be interesting how they overcome every little problem. They use three jets shared between 6 cylinders runners.

[parmas]

More info on :

http://www.autoblog.com/2015/02/13/bmw-reveals-m4-safety-car-with-innovating-water-injection-system/#image-14

[Richard L]

We welcome this new entry, it gives the water injection concept much needed creditability. Over the years, we have so much negative comments such as band aid etc.

We all know it is a sound concept, now at last a manufactures adopted it. It took them nine years after every WRC cars were using it. (1992-2006). I just wish the WRC un-bans it.

[Richard L]

I saw that, really cool stuff! What's even more interesting is that the OE ECU is now controlling pump fuel injectors/pump and water injectors/pump. I'm interested to know the jets used and if they require service/cleaning. Also, the location and quantity of jets used.



It will be interesting how they overcome every little problem. They use three jets shared between 6 cylinders runners.

[Richard L]

BMW, unreal.

This might give a boost to your bussiness...

We have lost a 250K+ of business after the WRC bnned the use of water injection on 2006. We were the sole supplier to all those teams.

[parmas]

I am curious what pressure are they atomizing and what nozzle hole dimensions are they using !

If anybody comes with an answer, please post it

[Richard L]

Here is another write up. They mentioned a 10 bar system...

http://www.autoblog.com/2015/02/13/bmw-reveals-m4-safety-car-with-innovating-water-injection-system/

http://www.m-power.com/_open/b/varlink2.jsp?lang=en

[parmas]

"After the engine has been turned off, the water is transported back from the pipeline into the tank, in order to prevent the system components freezing in minus temperatures. The water tank itself is also frost-proof."

Richard, could you post the sentence were they mentioned the 10bar system ?

[Flr Power]

Staight from autoblog:

In practice, the pump feeds the water to the injectors at a pressure of ten bar, whereby the appropriate volume is supplied depending on load, engine speed and temperature.

[Richard L]

Thanks Fir Power.

"After the engine has been turned off, the water is transported back from the pipeline into the tank, in order to prevent the system components freezing in minus temperatures. The water tank itself is also frost-proof."

Richard, could you post the sentence were they mentioned the 10bar system ?

Sorry, I was confused with a different article. here it is:

http://www.m-power.com/_open/b/varlink2.jsp?id=3301&lang=en

[maxc]

We have lost a 250K+ of business after the WRC bnned the use of water injection on 2006. We were the sole supplier to all those teams. Do have a copy of the "WRC rule on water injection"?

[Richard L]

I was told by our customers, WI is no longer allowed from 2006. I did not look into this in any details, just accepted it.

I did write to FIA to unbanned it with almost all the benefits highlighted by the the current BMW blog. I never received any reply.

I attended and spoke out one of the official motorsport conferences called "Green Motorsport", no results on that either. During the conference I raised the topic of applying water injection on reducing nitrous emission on road cars but he dismissed the idea and assured me their FSI technology has taken care of this.

Currently, cars with 3-way cat (95%) uses nitrous trap, and purge them with occasional CO rich exhaust gas. If you are interested I will try digging out the article. They called it "Lean Nox Trap Regeneration", technical or simply "dumping fuel".

[Richard L]

found it:

http://www.aquamist.co.uk/forum/BMW-nox-trap.pdf

[parmas]

"LNT regeneration was performed at an AFR of 12 consistently over
the load range; however, during lean operation the AFR varied with engine load and spanned from 19-28 with the lower AFRs occurring at higher loads."

19-28 ?? I thought 19 is the maximum lean possible !

[Richard L]

Not sure >18AFR will ever work under load, possible just keep the engine tickinh over on gear neutral?

[parmas]

Not sure >18AFR will ever work under load, possible just keep the engine tickinh over on gear neutral?

I agree with the >18AFR, but I don't understand the second sentence

[blue]

With latest audi diesels now using ad-blue to help with emissions
It's time to-visit this,

Ref post 14...

[parmas]

With latest audi diesels now using ad-blue to help with emissions
It's time to-visit this,

Ref post 14...

Refer with a link please

[stevieturbo]

Emissions levels will just get tighter and tigher, maybe to to the point diesels get phased out.

I guess pushing petrol engines harder, to run leaner at full load etc etc...water injection starts to make more sense. I'm sure any power is just a bonus, it'll all be about cleaning up the emissions whilst still giving the driver a sensible powerplant

If it's in a development car...that's bound to be a sign it's on its way to production cars ?

[Richard L]

If all manufactures adopt this, we can close shop.

[stevieturbo]

I think it will be a long time before it becomes commonplace, and there will still be an aftermarket demand for some time even after that.

Especially as modern cars become more complex and riddled with emissions nonsense.

[Richard L]

Well, I feel much better now.

We have to be thankful for a single product for 23 years, still alive and well despite those copy cat PPS systems.