5-stroke engine ?

atlex Global Moderator Excess 4x100 Detected. Posts: 4,878	5-stroke engine ? Jun 24, 2016 14:21:11 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by atlex on Jun 24, 2016 14:21:11 GMT Not sure how practical it is given other gains being made with the usual 4-stroke cycle and multi-stage ignition processes... but it certainly is interesting.
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Rickster Needs Gagging Posts: 1,472	5-stroke engine ? Jun 24, 2016 16:05:54 GMT via mobile Quote Select Post Deselect Post Link to Post Back to Top Post by Rickster on Jun 24, 2016 16:05:54 GMT That is very interesting Sounds workable- it needs one of the big car manufacturers to take it forward A small high efficiency petrol motor is exactly what is needed for hybrid cars
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AutotestAddict Chats A Bit Posts: 116	5-stroke engine ? Jun 25, 2016 13:20:43 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by AutotestAddict on Jun 25, 2016 13:20:43 GMT Stuff like this reminds me how thick I am. I love it.

Rickster Needs Gagging Posts: 1,472	5-stroke engine ? Jun 27, 2016 23:13:51 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by Rickster on Jun 27, 2016 23:13:51 GMT Anybody clever enough to work out what actual average mpg, 226g/kWh is? It's not easy
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FFS Corders Global Moderator Posts: 1,848	5-stroke engine ? Jun 28, 2016 9:47:13 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by FFS Corders on Jun 28, 2016 9:47:13 GMT loving the computer-generated feel of the voice over
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Rickster
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5-stroke engine ? Jun 28, 2016 17:05:38 GMT

Quote

Post by Rickster on Jun 28, 2016 17:05:38 GMT

Jun 27, 2016 23:13:51 GMT Rickster said:

Anybody clever enough to work out what actual average mpg, 215g/kWh is?
It's not easy

cos I'm sad i worked it out as roughly 85mpg but that is assuming that 1kwh takes you 3 miles and there is a lot of variables in that

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AutotestAddict
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5-stroke engine ? Jul 2, 2016 13:18:27 GMT

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Post by AutotestAddict on Jul 2, 2016 13:18:27 GMT

It would be very useful to have mpg values for when you're hooning it. A 185bhp engine may return 85mpg when driving sensibly, but if you've got 185bhp you are going to use it, and presumably the mpg would drop off fairly quickly as with any other engine?

Rickster
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5-stroke engine ? Jul 2, 2016 22:37:48 GMT

Quote

Post by Rickster on Jul 2, 2016 22:37:48 GMT

Yes - it's difficult to accurately convert g/kWh into mpg because they are different types of unit.
Having said that the 1kwh to 3 miles is supposed to be fairly "real world" driving.
I bet the 215 figure they give is on the test bed at optimum revs so much better than you would get in a car

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Rickster Needs Gagging Posts: 1,472	5-stroke engine ? Jul 2, 2016 22:39:46 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by Rickster on Jul 2, 2016 22:39:46 GMT There are so many other things about this other than fuel economy that make it interesting. Cooler exhaust has many possible benefits
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Meerkat Chats A Lot Posts: 489	5-stroke engine ? Jul 5, 2016 12:06:24 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by Meerkat on Jul 5, 2016 12:06:24 GMT This is really interesting. I wonder if there would be any long-term implications of having a cylinder fed only by exhaust gas? Would it eventually become choked up with carbon deposits?
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AutotestAddict Chats A Bit Posts: 116	5-stroke engine ? Jul 6, 2016 8:09:48 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by AutotestAddict on Jul 6, 2016 8:09:48 GMT I'm wondering whether this means you could place turbo chargers of varying/reducing sizes between each cylinder for ultimate silliness/efficiency?

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