Dear Mr. Lamar:
Happy New Year! I hope this e-mail finds you and yours very happy
indeed!
I found something that may help acceptance of the Wankel rotary engine,
especially when it is operating in its most efficient, leaned-out (and
turbocompounded! :-) mode.
http://www.catalysts.basf.com/Main/mobile_emissions/mobile_sources/automotive_emissions/premair_catalysts
*PremAir radiators*
"
http://www.catalysts.basf.com/Main/mobile_emissions/mobile_sources/automotive_emissions/premair_catalysts/using_passenger_cars_to_destroy_ozone.be
"PremAir can be applied to surfaces that come into contact with large
quantities of air to form an effective and durable system for ozone
reduction. Mobile applications include radiators on cars, trucks and
buses. Tests have shown that the catalyst can destroy up to 80% of ozone
in the air passing over PremAir-coated surfaces. Extensive laboratory
and on-road testing also have demonstrated the effectiveness and
durability of PremAir on vehicles.
"Both, the U.S. Environmental Protection Agency (EPA) and the California
Air Resources Board (CARB) have enacted rules that allow automotive
manufacturers who use PremAir to apply for credits under Low Emission
Vehicle programs."
So, until we can overturn wrong-headed emissions regulations, we could
use PremAir radiators to get around the facgt that Wankel rotary
engines, when properly leaned out, exhaust higher-than-piston-engine
levels of oxides of nitrogen (NOx). We lean out the engine and use the
PremAir radiators as "NOx credits" (a hateful sham, but necessary) to
get governmental approval for our Wankels to run in the necessary range
of exhaust that makes it most efficient.
This will not only help automotive Wankel engines, but also aircraft
Wankels, as the FAA is, seemingly, on an irresistable march to
eliminating 100LL as a piston-engine fuel.
What do you think?
Wishing you a great 2011,
Les Nordman
Good hearing from you Les. Merry Christmas and Happy new year.
Latest word from Mazda is the rotary has demonstrated higher
efficeincy than the piston engines Mazda make.
Paul Lamar
I wonder how these guys came up with the idea that ozone is a pollutant?
I guess they have been watching the nightly news. Where else could they
get it?
Ok, so they must have gotten the idea from the libs in the calif.
legislature... or mother pelosi, etc...
Did I not read maybe 10 years ago that the problem with leaning petrol
engines is the resultant oxides of nitrogen? Or perhaps carbon monoxide?
Both nasa and honda motors in japan developed exhaust catalysts to
eliminate that problem, and in the case of honda, made an engine whose
exhaust output ended up cleaner than normal breathable air.
Ozone is the lower atmosphere is primarily the product of of light
reacting with methane and stable oxygen; the methane being produced by
bacteria in the soil as it decays foliage. The anti O3 people are the
same as the anti Co2 people. They are both horribly misinformed, and
obviously love being so.
Life as we know it would not be possible without the reactive oxygen
compounds (O3)(ozone) in our atmosphere cleansing (oxidizing) the junk
from the air, reducing it to harmless organic compounds, especially on
hot days...
Ed Carver
Yes I thought NOX was a big problem with leaning.
I do notice my Honda Odyssey does lean from time
to time using my OBD II CarChip monitor. I thought
they were cheating on the EPA cycle. It also
gets good mileage from a 3.5 Liter 250 HP engine.
well over 20 MPG. Maybe 25 MPG.
My RX8 always runs stoichiometric or richer. If that
is true Mazda is missing a huge bet if they don't lean.
The fuel burn in a rotary goes way down when leaned.
In other words the BSFC gets noticeably better.
Mazda should license the NOX technology from Honda.
Paul Lamar
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