Paul,

On YouTube there is a video about a guy's inventive ideas on Wankel engine.
 I think the name is Ernie Brink. He claims to be able to reduce exhaust temperature by 600 degrees.
The first idea was to narrow the gap left for the spark plug so that there is no leak across the seal at the apex, which I think makes sense.  The second idea was to have offset combustion chamber so that expansion of gas pushes the rotor forwards only and not backwards at the top dead position.  I think this does not make any sense at all as the entire combustion chamber actually has uniform pressure, whether or not offset.

Is my understanding correct?

Best regards,

Gordon GAO...... In China

https://www.youtube.com/watch?v=m3pCLjHZmhM&spfreload=10

First the gas mileage is no where near as bad as  he says it is.
My RX8 gets 25 MPG on the highway. If I use max acceleration around town the mileage drops as would any 250 HP car. Very similar to a Corvette.

Basically he has not read all the technical literature available for the Wankel.
Most of it is on our web site or on links  that are on our web site.

Here is a good link.
http://foxed.ca/index.php?page=rx7manual

Down load Kenichi Yamamoto's books. They are a compilation of most of what Mazda learned.

If he had he would have known that there is near zero pressure difference from the trailing volume to the leading volume at the spark plug hole.
Therefore no gas flow across the spark plug hole.

After combustion takes place the pressure in the expansion chamber is near uniform. The centre of this pressure is in the right place to spin the e-shaft.

His reduction in EGT is highly unlikely.

His video has been around for years. If any of it worked we would have heard more about it

Paul Lamar



Thanks Paul.

I see Mazda has already researched similar issues, on page 47-48 of the Yamamoto book.


Gordon


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