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Old 11-22-2009, 06:10 AM   #1 (permalink)
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Set To Make VVT Look Old Fashioned

Fiat have come up with a new engine design that looks set to give all engines more power, more torque, less emissions, and better mpg, regardless of size, fuel type, or aspiration method.

Ingenious stuff, hopefully it will take off

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Old 11-22-2009, 08:11 AM   #2 (permalink)
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Electro-hydraulic valve actuation. It allows almost any intake valve schedule you want, giving good torque down low and power up high.

BMW was playing with the idea a while back, and they made a gas engine that didn't need a throttle plate, because it can use the intake valves to modulate power. BMW's valvetrain doesn't appear to have made it to market.

It's a good idea, if it can be made reliable and inexpensive enough. I hope it catches on.
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Old 11-22-2009, 08:22 AM   #3 (permalink)
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Awesome !
I love it when race (F1,Indy) technology hits the street.
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I can't understand why my MPG's are so low..........
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Old 11-22-2009, 10:25 AM   #4 (permalink)
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Don't they already have this on production models?
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Old 11-22-2009, 01:01 PM   #5 (permalink)
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Quote:
Originally Posted by 99LeCouch View Post
Don't they already have this on production models?
I think the Alfa Mito has it already.
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Old 11-22-2009, 03:21 PM   #6 (permalink)
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...I noticed they used hydraulic actuation, wonder how long until electronic actuation becomes feasible?

...looks like it's mechanical-profile with hydraulic "coupling" (0-100%) between camshaft and value.

...wonder if ferro-magnetic oils (as currently used in 'adjustable' shocks) could do the samething electronically?

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