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Mazda announces gas compression ignition.

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Old 08-14-2017, 01:59 PM
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Yes. Knock is the result of the piston in compression getting a burn.
Old 08-14-2017, 02:19 PM
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Originally Posted by Mr.E.G.
That all jibes with my understanding of what would be happening in an engine like that. What I'm still confused about is how this is made into a desirable effect rather than a disastrous one. Gasoline engines ignite the gas/air charge under pressure all the time, only we call it "knock" and it blows your engine up. So how is this different, I wonder. Is it "not knock" because of when it happens?
You want it to ignite at the point of TDC or there after for each piston. It would not be knock if the piston is on the downside of the stroke. How you control it exactly takes magic brain-wizards at Mazda.
Old 08-14-2017, 02:29 PM
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Originally Posted by darcyw
I thought i was the only one on the planet who thought the new/old prius was hurting my aesthetic sensibilities. Ugly as (insert expletive here). AND, you've got to deal with that battery pack- has anyone really figured out the mine to wheel environmental impact and cost of them?

I think i shall sue Toyota for bringing to market such an ugly conveyance. And are the people who buy them blind? I don't get it- if i'm spending $30,000, it sure as hell isn't going to look like that horrid.

so to stay on topic- be kind, buy a mazda.
darcy
I like em.

Last girl I dated also dug them.
Old 08-15-2017, 06:51 AM
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Old 08-21-2017, 12:06 PM
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^^ I just came to this thread to post that video. Good work
Old 08-23-2017, 08:51 AM
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Great technical explanation that explains why these engines wont' have problems with NOx emissions. (unlike a diesel)
Old 08-28-2017, 07:24 AM
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Here's a pretty thorough article on the engine:
Nerd Alert! Mazda’s Skyactiv-X Engine
Old 10-27-2017, 07:00 AM
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Neat, neat, neat. I think I should buy some kind of Mazda in the near future just to reward a company that is super cool. If the Miata gets this engine, where do I put my deposit?
Old 10-27-2017, 02:06 PM
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^^ Yeah! The MX-5 with 188 horsepower would have been pretty good!
Old 01-25-2018, 09:00 AM
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https://www.autoblog.com/2018/01/25/mazda-skyactivx-compression-ignition-explained/

Interesting
read. I hope they are producing a 2.5 liter HCCI engine in the background along with the development of the 2.0 liter. I would run to the dealer and buy the Miata with one of these, and I think it is a very real possibility I get the CX5 with one in a couple years.


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