The Miller Cycle

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Thu 6 Oct 2005 20:26
The Miller Cycle - Dude - {P}

I see the forthcoming replacement for the Suburu Imprezza uses the Miller cycle technology, which increases efficiency by 10 to 15%.

If it is that effective, it seems strange that since this development has been around since the late 1940`s, why other manufacturers have not adopted this technology.

www.autocarmagazine.co.uk/news_article.asp?na_id=2...1
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Thu 6 Oct 2005 23:25
The Miller Cycle - martint123
Possibly as it is targeted at vehicles normally using a 3L and larger engine and needing forced injection.

They've been using it for years on huge marine engines - AKAIK it's mainly valve timing??
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Fri 7 Oct 2005 00:56
The Miller Cycle - Civic8
auto.howstuffworks.com/framed.htm?parent=question1...2

Trying on a 2 litre I think
--
Steve
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Fri 7 Oct 2005 10:42
The Miller Cycle - Dude - {P}
Steve-o, Thanks for that excellent link, with fuel prices looking set at their current high levels, maybe other manufacturers wiil seek to exploit this 10 to 15% gain in fuel efficiency.
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Fri 7 Oct 2005 12:23
The Miller Cycle - cheddar
A Miller cycle engine is very little different in concept from conventional engines, certainly supercharged engines. In fact a turbocharged engine with VVT is further from the Otto cycle engine concept than a Miller cycle engine is.
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