Comments by "" (@doktorbimmer) on "Donut" channel.

  1. @Troy Bush Who said the Wankel's fatal flaws have anything to do with a lack of material technology or a lack of computing power??? Your theory is like suggesting that technology can make a square wheel more efficient than a round wheel... it indicates a complete lack of understanding of the inherent fundamental flaws in the Wankel KKM design or why it is now obsolete. Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?
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  2. Clearly you do not have a functional understanding of the Wankel KKM engine's fatal flaws and why development of this engine design has been abandoned and is obsolete today.
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  3. Please explain what new material shows promises in offering a significant improvement in Wankel engine performance and efficiency and how is this new material(s) is utilized to achieve this improved performance????
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  4. Just answer the simple question... "Please explain why you would want a gasoline fuel that acts like Diesel fuel??? and how that would solve the flaws in the Wankel engine?"
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  5. Its pretty self-evident that you sir are nothing but a fake and a fraud.
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  6. Its pretty self-evident that you sir are nothing but a fake and a fraud.
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  7. Thank you proving my point! You sir are a fake.
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  8. Yes. Thank you again for confirming you have no clue what you are talking about and are in fact just wildly speculating about a topic you simply do not have the slightest grasp of... You cannot change the unique geometric relationship that allows the Wankel KKM to function as a 4-stroke engine... the shape of the combustion chamber and its volume is fixed within a very narrow range... increasing the static compression ratio can only be achieved by reducing the volume of the chamber recess and this reduction directly and adversely effects ignition, flame propagation and overall combustion efficiency. This also clearly explains why there has never been any successful examples of Wankel engines utilizing the Diesel Cycle. Please stop pretending you understand this problem or how its supposedly can be cured by modern materials or computers... you are simply embarrassing yourself with your ridiculous remarks and childish theories... the only one that looks like a fool here is you son.
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  9. Yeah, you look really stupid now so you should go and spare yourself any further embarrassment. Why don't you go post a comment about something you actually understand? Because engineering is obviously not your subject son.
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  10. @.SpiinDeX You can't escape the truth... and lies will always be exposed
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  11. Lean burning engine produces MORE NOx
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  12. +namasayanif Clearly you don't understand the basics of NOx formation...
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  13. You seem completely oblivious to the effects of PRESSURE on NOx formation.
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  14. No, high pressure is only inherent to engines with high static CRs above 14:1... LIKE THE SKYACTIV-X with 16:1 CR.
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  15. Diesel engines operate at far leaner AFRs (up to 80:1) they also produce high levels of NOx due to the high pressures above 14:1 and the EXCESS OXYGEN available to form NOx compounds.
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  16. Perhaps you should see a doctor... it could be a brain tumor!
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  17. You are nothing but a fake and fraud... go troll somewhere else.
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  18. You don't intimidate me kid... but I do feel sorry for you... you and your whole misguided generation.
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  19. Your'e not a very good liar kid!
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  20. You are a a fake and a fraud kid, you don't fool me.
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  21. You got nothing kid... you are a joke!
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  22. You are a FAKE kid... get over it!
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  23. Yes, I fully understand that you are a fake and a liar... you are not fooling me son.
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  24. I wouldn't call a 53% failure rate under the warranty period "reasonably reliable"
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  25. Bathhurst? It sounds like one of those rallye races on temporary street circuits in new zeeland, is that the same thing I'm thinking of?
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  26. Australian engineers? Like automotive engineers??? Australia doesn't make cars. I thought they imported all their cars from Korea or China now???
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  27. But it seems not good enough to make cars...
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  28. Wankel engines are dead... they have been obsolete for years.
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  29. +Darian Murcott-Istead Pre-mixing is monumentally DUMB... its nothing but a false urban myth.
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  30. Ernie Brink, Why does your engine not run????
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  31. Car companies only make cars that actually sell...
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  32. @SidewaysGts Mazda discontinued the RX brand... because no one bought them anymore.
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  33. @SidewaysGts 100 Million new cars sold last year... NONE of them had a Wankel engine.
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  34. But Johnny, SPARCS was a colossal financial and technical failure... Garsides was fired from Norton, they went bankrupt foolishly investing in his incompetent engineering skills.
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  35. Insert homosexual rotard comments below.
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  36. Its already supercharged.
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  37. The Mazda RX-7 is a better example of how they Don't work Lol!
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  38. Good question, increasing width of the seal actually reduces the ability to form a gas tight seal, increasing surface area reduces the pressure against the housing surface. The other problem is weight, a heavy seal causes chatter (called devil's nail scratches) and leaves damaging marks on the surface of the housing. The apex seal must be allowed to move in and out a large enough tolerance to conform to the considerable expansion, contraction and torsional movement but must be light enough that the minimum about of spring tension is used... heavier seal? More bounce... Strong springs more wear.
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  39. The diameter of the housing is a serious limiting factor in the Wankel design.. as the radius increases so does the surface speed the seal must travel across the surface at the same rpm... The largest diameter Wankel ever built was 41 liters by Ingersoll-Rand and had a Radius of 424.18 mm ( 16.7" inches) but was limited to rotor/piston speeds of just 400 rpm.
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  40. The other problem that faces all internal combustion engines the Conflageration Velocity or "Flame Speed" in a gasoline piston engine this is an issue when Bore diameter reaches 100 mm or 4 inches... as you increase the bore diameter beyond this the engine operating rpm is reduced because there simply is not enough combustion dwell (time) for the air fuel mixture to ignite and burn completely. In the Wankel this effects both the width and the diameter of the housing and limiting the practical size.
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  41. Mazda announced last week it is taking orders now for delivery in Europe starting in September prices start at $23,000 USD
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  42. No, because Diesel is very low octane
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  43. Mazda is a joke...
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  44. Sorry you can't afford a better car....
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  45. Diesel fuel is not sold by Octane Rating... but it still has a measurable octane rating usually around 15 to 40 RON.
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  46. Wtf does Diesel have to do with Skyactiv-X??? At least I can afford one...
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  47. Diesel engines run using only STRATIFIED CHARGE COMPRESSION IGNITION... it will ignite and burn almost anything flammable... regardless of octane rating
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  48. The kind that hold there resale value... Engines that use Homogeneous Charge Spark Ignition have a minimum fuel octane rating requirement BECAUSE AF charge could self ignite... this is a bad thing. Diesel engines do not have this requirement because they use Stratified Charge Compression Ignition.
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  49. Most fans of the Wankel engine these days are adolescent boys... so its just targeted demographics really.
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  50. No, There are no Diesel Cycle Wankel engines. Several failed attempts have been made but all were ultimately failures, the Wankel simply cannot support compression ignition because it cannot reliably generate high enough compression.
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