fuel injection by 2014?

  • Thread starter Deleted member 12676
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Deleted member 12676

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from http://www.walbro.com/pr032411.aspx :

The Walbro EEM InjectionTM system will allow Chinese manufacturers to meet upcoming exhaust emissions standards such as Euro 4, which goes into effect in 2014. In addition to becoming the European standard, Euro 4 is expected to be the basis for exhaust emission standards in several key export markets for Chinese scooter manufacturers.*The importance of meeting exhaust emission standards in each export market has become very visible with recent, costly crackdowns by the United States EPA on imported scooters that did not comply with US requirements. Enforcement of exhaust emissions standards is expected to continue to become more stringent throughout the world, making compliance a significant issue.
 
I just don't see it impacting our engines with a lack of dedicated charging system. I believe 4 amps is the minimal to operate a controller and pump. A returnless, PWM pump reduces the amperage requirements, but not enough without a dedicated charging system. Many 50cc scooter enthusiasts attempted to convert with the Electrons systems, but failed due to the lack of power to run the pumps at the required amperage.

Chris
AKA: BigBlue
 
DIY is not what we're looking at here. If the China Gas factory decides to utilize this system then I'm sure they will incorporate a big enough generator to supply the pump power. Fuel injection is going to be essential for 2 strokes to pass gov't regulations. More fuel economy, more power, less contamination!!! this is a jackpot!
 
jaguar said:
DIY is not what we're looking at here. If the China Gas factory decides to utilize this system then I'm sure they will incorporate a big enough generator to supply the pump power. Fuel injection is going to be essential for 2 strokes to pass gov't regulations. More fuel economy, more power, less contamination!!! this is a jackpot!
Click to expand...
Never going to happen.
You got to be dreaming thinking that Don Grubee could ever go in that direction.

Motorized Bicycles are a tiny market compared to scooters and will never justify
the capital that would be required.
 
BigBlue said:
I just don't see it impacting our engines with a lack of dedicated charging system. I believe 4 amps is the minimal to operate a controller and pump. A returnless, PWM pump reduces the amperage requirements, but not enough without a dedicated charging system. Many 50cc scooter enthusiasts attempted to convert with the Electrons systems, but failed due to the lack of power to run the pumps at the required amperage.

Chris
AKA: BigBlue
Click to expand...


No so fast BigBlue - Wonderful Creations is about 5 weeks away from producing a 5 amp, 12 volt electric starter/generator for the chinese bicycle engine
 
and they have a few other very interesting developments coming your way, including a system that completely gets rid of the standard magneto and standard magnet.
 
We desperately need an electronic fuel injection system on these Chinese Bicycle Engines.
Currawong Engineering already has a complete micro EFI system (that easily fits in the palm of your hand) for small engines around 30cc.

The technology is already here. The technology does not need to be developed. The technology only needs to be installed on the Chinese bicycle engine and it's job done!!!
 
Wonderful Creations is about 5 weeks away from producing a 5 amp, 12 volt electric starter/generator for the chinese bicycle engine

I'll believe it when I see it.

Yes the technology is already there, but the problem is most manufactures only want to sell to OEMs and in large quantities to be cost effective. I don't see selling to the end user. Is a DARPA sponsored product going to be sold to the general public or let the Chinese company manufacture? UAV components has to be expensive. Currawong is advertising aerospace quality. I am sure they could reduce the costs. With the added cost of a charging system and an EFI system, how much is a person willing to spend on an engine that costs a $100.00? That is one of the reasons why this hobby exists - because of the cheapness of the Happy Time engines.

At this point in time, I don't see it happening.

FYI, here's a system that uses ink jet technology: http://www.nwuav.com/index.html

Chris
AKA: BigBlue
 
O.K., lets forget the pipe dream and talk practical solutions. A possible is a Direct Injection system similar to what is used on the Aprillia 50s. Clean Engines International currently has solutions for clean burning 2 stroke Direct Injection systems, developed by Envirofit with a license from Synerject, a subsidiary of Orbital Engines. Per the Envirofit International Case Study, the system would cost approximately $90.00 in 2008 and may be less expensive now. A practical solution could be developed by Clean Engines International for the Happy Time engine. I believe they have a license from Synerject (Orbital) that would help keep costs low.

Some hurdles would have to be overcome in developing components, such as the air pump, fuel pump and magnetic pickup, but I think wouldn't be overwhelming. Member crmachineman on the other forum develops custom head for the Happy Time and probably could develop a two port head for the plug and injector. He is currently designing a three port head. This could be used as a prototype: http://motorbicycling.com/showthread.php?t=41673&page=3; http://www.ebay.com/itm/Motorized-b...r_Truck_Parts_Accessories&hash=item1e71f5ab9f

Envirofit International and Colorado State University:
http://www.scribd.com/doc/57017526/Envirofit-Case-Study
http://jawamania.info/Files/tech/22...Retrofit_Kit_for_Small_Two_Stroke_Engines.pdf
http://www.youtube.com/watch?v=pe5-N5mDiAA - Skip to 5:20 to see what is included in the kit.

Synerject:
http://www.synerject.com/di.html

Clean Engine International:
http://clean-engines.com/

Chris
AKA: BigBlue
 
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