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Fuel injection chainsaw?

Started by The Diesel, August 13, 2016, 08:35:22 AM

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The Diesel

I saw some posts about stihl coming out with a fuel injected chainsaw a few years back.  What happened or is the m tronic now fuel injected?

RIDE-RED 350r

By the definition of fuel injected and knowing what M-Tronic and AT is, I wouldn't say they are fuel injected...
Swedish, you know, like the chef.

Ada Shaker

Perhaps a concept saw or a pipe dream at the least. I'm still waiting on the turbo'ed model to come. :D
If it hangs to the left, your likely to be a Husqvarna man.
If it hangs to the right, your likely to be a Stihl man.
Anything else is an uncomfortable compromise.
                             AND
Walking with one foot on either side of a barbed wire fence can become extremely uncomfortable at times.

Ianab

I suspect the technology to make it light, cheap and reliable enough isn't quite there yet.

To run an electronic fuel injection you have to have a battery to power the fuel pump and computer before you start the engine. That then means an alternator to power all this.

All in something that gets dragged around the forest in the rain, mud and sawdust?

Now that's not to say it's impossible, Just impractical at the moment.
Weekend warrior, Peterson JP test pilot, Dolmar 7900 and Stihl MS310 saws and  the usual collection of power tools :)

joe_indi

There was some rumor of a Fuel injected MS661 undergoing trials in Indonesia or Thailand.
Fuel injection is already there in the Sthil cutoff saw. So a similar chainsaw might not be too far in the future
http://www.stihl.co.uk/the-world-first-stihl-injection-electronically-controlled-fuel-injection.aspx

RIDE-RED 350r

You don't necessarily need a battery to run a bonifide fuel injection system any more. I give you BRP's Rotax ETEC system on their 2-stroke snowmobiles. And they bought the rights to this tech from Johnson/Evinrude outboards who had been using a similar system reliably since the late '90s if I recall.

I'm not sure of the outboards, but I know that the sleds don't need to be E-start equipped (battery) for the ETEC injection system to work.

The tech is there, I just don't think it can be made small enough, cost effectively enough for use on hand held power equipment.....YET.

But my wager is that it WILL be a reality, probably in the next ten years.
Swedish, you know, like the chef.

snowstorm

brp bough omc after the bankruptcy of omc .. evinrude. in the early 2000,s. what is now etech started out as Fitch. a direct injection system that sorta worked. sorta cause it put omc into bankruptcy. the rude etech works very well 

HolmenTree

Quote from: RIDE-RED 350r on August 15, 2016, 06:37:31 PM

The tech is there, I just don't think it can be made small enough, cost effectively enough for use on hand held power equipment.....YET.

But my wager is that it WILL be a reality, probably in the next ten years.

I don't know where you have been :D But Stihl has sold the world's first electronically controlled fuel injected handheld tool for about 5 years now.

http://youtu.be/wPdZzDW0LrM

Making a living with a saw since age 16.

cliffreaves

Put a light saber on that puppy and milling would be soooo easy.😂

HolmenTree

I can guarantee you Stihl and Husqvarna are working overtime in the research and development stages with fuel injection to cut wood. :)
Making a living with a saw since age 16.

ZeroJunk

I think as far as cut off saws I would rather see an electronic device that electrocutes the operator if he doesn't clean the filter.

Ada Shaker

Just wondering if there are any real world benefits to fuel injecting into the crank case of small engines?. They already run around 10,000rpm, don't think those little bearings can handle much more, could it be to increase torque???.
If it hangs to the left, your likely to be a Husqvarna man.
If it hangs to the right, your likely to be a Stihl man.
Anything else is an uncomfortable compromise.
                             AND
Walking with one foot on either side of a barbed wire fence can become extremely uncomfortable at times.

HolmenTree

The way I see it power will not  be increased but a more  precise metering of fuel and air with reliability over the long term will be the goal.

Take a look at our vehicles today. I haven't seen a carburetor in about 30 years and they sure do run nice ;D
Making a living with a saw since age 16.

Al_Smith

The gasoline engine has evolved rapidly in the past several years .From carbs to hybrid electronic carbs,central fuel injection ,pressure rail type injectors,variable valve timing,individual spark timing,knock sensors.Next up high pressure fuel injection right into the cylinders like a diesel.

It's only a matter of time before chainsaws use at least some of this stuff .With that though comes the inability to work on your own saws with any kind of luck .

That's just the way things evolves.Not too long ago televisions had tubes in them and weighed 50 pounds .Now you can hang them on the wall.

RIDE-RED 350r

Quote from: snowstorm on August 15, 2016, 07:57:31 PM
brp bough omc after the bankruptcy of omc .. evinrude. in the early 2000,s. what is now etech started out as Fitch. a direct injection system that sorta worked. sorta cause it put omc into bankruptcy. the rude etech works very well

Thanks for the clarification on that.
Swedish, you know, like the chef.

RIDE-RED 350r

Quote from: HolmenTree on August 15, 2016, 09:20:40 PM
Quote from: RIDE-RED 350r on August 15, 2016, 06:37:31 PM

The tech is there, I just don't think it can be made small enough, cost effectively enough for use on hand held power equipment.....YET.

But my wager is that it WILL be a reality, probably in the next ten years.

I don't know where you have been :D But Stihl has sold the world's first electronically controlled fuel injected handheld tool for about 5 years now.

http://youtu.be/wPdZzDW0LrM

Nope, didn't know about that... Pretty cool!
Swedish, you know, like the chef.

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