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George,
I can't give you the total lowdown on HCCI, other than people have been working for ages on how to make ICE's more efficient. Since they only use 30% of the available energy that should be doable!
For the cheapest gas in MY life I remember in 1969 my dad bought a new VW bug as a commute car and we had fun driving around town trying to find the cheapest fuel. The station was close to our home run by Hudson and the price was $0.26 a gallon. Almost 4 gallons for a buck rather than the other way round!
Bill Jepson
-----Original Message-----
From: George Lendich <lendich@optusnet.com.au>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, 13 Dec 2007 9:35 pm
Subject: [FlyRotary] Re: HCCi Engine Technology
Lynn and Bill,
I googled it, which I should have done initially and some sites stated it had been around for about 30 years. I guess they didn't really need it then. I tell my Son, back in 1967 I remember getting fuel for 5 cents a liter or 20 cents a gallon - he can't believe it. I guess that's 40 years ago, but you know what I mean. Does anyone remember what it cost in the US in 1967.
I had a look at one site and they showed a computer generated fuel burn progression, HCCI was a lot faster, and in all areas at the same time. One site suggested it worked best with DI.
George (down under)
Their comments on the technology are as mentioned before either high compression or intake heating are required. Supercharging or intake is also a way to high cylinder pressure. Right now they say that the trouble for the tech is controlling the timing event. They say the system works well but doesn't transition to high load well. Right now another hopeful technology that's not ready quite yet.
Bill Jepson
About 30 years ago a guy named Yanuck built a V-2 from part of a small block Chevy. It had a small turbo to maintain positive inlet pressure and the exhaust system strung through the inlet manifold. It was mounted in an old Mercury Capri. It would pull away from a stop at near zero RPM in top gear. It had the Capri carb. Got great milage. Never detonated. Was quiet.
GM engineers drove it with him in the seat beside them. One couldn't believe that the exhaust system was coiled inside the intake, so he put his hand on it and burned himself comprehensively.
Smokey was paid to work on various projects for GM. This car and engine were not on the GM list, and was all Smokys ideas. He wanted to maintain control of the idea, and GM wanted to buy it outright. So instead of buying a license from Smokey and being the top of the heap today, GM shoved the pistol down behind their belt buckle and pulled the trigger.
Smokey disassembled the engine and crushed the car. The superheated intake idea and its refined effective systems died with smokey. And still the struggle goes on to achieve what has been done so long ago.
Lynn E. Hanover
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