fuel injection

[Big_Richard]

coming to a lawn mower near you soon.

interesting that its an analog engine management system that's been developed on a single chip.

so it took them 30 something years to basically copy a D-jet controller and put it on a single chip, hardly revolutionary.

http://www.automotivedesignline.com/products/219500185

[OzBenzHead]

Hmmm ... maybe I just don't get it, or perhaps it's just poorly written, but the article claims that

The MC33812 chip also allows small engine manufacturers to eliminate spark plugs [...]

yet I see a spark plug in the diagram.

[TJ 450]

Surely a spark plug is required to ignite the mixture? Maybe they were on another planet when they wrote that statement. Of course I could be wrong. Maybe there is another way of igniting the mixture?

It's about time some party looked into cleaning up these engines. Perhaps they should introduce this technology into Third World countries, as most of their basic transport relies on two stroke engines and emissions are absurd.

Tim

[Big_Richard]

perhaps the spark plugless version they are referring to is for small diesel engines


I think the whole idea of this system is for cleaning up the air quality in places like china, with their slow moving wicker vehicles and scooters etc.

hahahonda already have over head cams in their small single cylinder engines, don't know about fuel injection yet - that's what ill be getting when i buy my next lawn mower.

[robertd]

is that a young pb

[Big_Richard]

Its Bill Gates, next week, someone else. 

[OzBenzHead]

One major environmental improvement (air and noise pollution) would be to ban those utterly stupid leaf-blowers that do nothing useful.     They make a terrible racket, stink, and simply blow one's rubbish somewhere else while stirring up dust. What's wrong with a rake (or at least a sucker / vacuum unit) instead?

[Big_Richard]

One major environmental improvement (air and noise pollution) would be to ban those utterly stupid leaf-blowers that do nothing useful.     They make a terrible racket, stink, and simply blow one's rubbish somewhere else while stirring up dust. What's wrong with a rake (or at least a sucker / vacuum unit) instead?

got some noisy neighbors OBH ?

my brother bought a professional stihl blower/vac thingo for blowing leaves off the pool cover, used it about 3 times and has never used it since. All it does is make too much noise, smell and move the mess from one place to somewhere else. Uncertain as to the point of these devices I'd personally rather use a broom / dustpan & brush.

[OzBenzHead]

[...] got some noisy neighbors OBH ? [...]

Had one -- until we all ganged up on him and insisted either he cease and desist from his early Sunday morning leaf-scattering or we'd report him to council and EPA for undue noise outside the allowable hours (and 7 a.m. Sunday is definitely outside those!).  He now has someone else do it, professionally and with a vacuum unit mounted on a truck, during business hours; not half as noisy, and sucks up rather than redistributes (in neighbours' directions) his dust.

I think the 1970s Greeks in the inner northern suburbs of Melbourne had it right with the whole lawn nonsense: pave it with green concrete and hose it down twice a year; grow vegies in raised beds.    (Some of them got quite imaginative with implanting plastic flowers into the concrete, too.) 

[s class]

concreted yards are still popular with the portuguese community in South Africa - to the point that concrete is still sometimes referred to as portuguese grass.  My neighbours are portuguese - and the only grass they have is on the sidewalk outside their boundry line - because that's council property and you aren't allowed to concrete it.....