Comments by "John Burns" (@johnburns4017) on "Engineering Explained" channel.

  1. The real doktorbimmer You must stop making things up
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  2. The real doktorbimmer Obsessions cloud reality. Please get therapy. 
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  3. The real doktorbimmer You have it in reverse, understandable in your mental state. The Wankel has a superb power/weight ratio. Ideal for range-extenders. In fact the best. 
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  4. The real doktorbimmer You are very confused. 
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  5. The real doktorbimmer I have given you a few. Half the UAVs use Wankel engines. Please get therapy. Please,
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  6. The real doktorbimmer Please get therapy. Please.
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  7. The real doktorbimmer Please therapy. Please.
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  8. ***** Oh my God! Another one who needs therapy.  Easy when you look, and this is just for starters. This f****ing idiot bimmer continually says none are made at all: http://www.uavenginesltd.co.uk/products/ He found his girlfriend being fucked in the back of an RX-8. Sad but true. 
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  9. Heiko Panzlaff About half of the UAVs around use rotary engines. The power/weight ratio is phenomenal.
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  10. The real doktorbimmer Please get therapy. Please.
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  11. Icetrucker1956 The Rotary engine is alive and well and made by many makers. 
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  12. The real doktorbimmer You are a complete idiot. 
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  13. Badassbri Kicksass "The rumours of my death are greatly exaggerated" Find out about rotaries and what is going on. Your scope is only in cars. 
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  14. The real doktorbimmer Dope you have been told many times.  This man has mental problems for sure. Maybe he thinks the rotary engines in all those UAVs made themselves. 
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  15. The real doktorbimmer When are you going to get therapy?
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  16. WAVETUBE84 The rotary meets all emissions regulations. 
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  17. jmowreader​ I agree with you. Turbines can be the size of a large can of beans. They are used in the US M1 tank. They are also used in some buses turning a genny. They turn at very high speeds.  
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  18. The real doktorbimmer More drivel! The most efficient genny's are rotary powered. When the small size and weight and power to weight is taken into account they shine. 
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  19. swissgi The rotary is clearly not dead. A poor video.
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  20. The real doktorbimmer Yes, and it shows. 
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  21. The real doktorbimmer The wankel is more efficient. 
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  22. The real doktorbimmer It does.
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  23. 123Bosniak That is very nice to know. 
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  24. The real doktorbimmer The rotary in a range-extender role is superior to a piston lump. There you go...
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  25. damien merrylees You have no idea of R&D and applications of Rotary engines. Sad but true.
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  26. The real doktorbimmer Please get therapy. Please. 
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  27. The real doktorbimmer If only
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  28. Windurster Light FIVE companies round the world make rotaries. You are naive and ignorant. 
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  29. The real doktorbimmer Please get therapy. Please.
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  30. soundseeker63 The RX-8 was not thirsty. It had the performance of a Porche with equal fuel consumption.
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  31. soundseeker63 In performance. The average Porsche driver NEVER got 28mpg. in real world use the Equiv Porsche was no different to the RX-8
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  32. poncoolride Do you have pictures of doktorbimmer on your wall? 
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  33. MacktasticDazzle It has changed. Look at the wiki.
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  34. Direct fuel injection and laser ignition will improve the Wankel considerably when introduced. The problem of unburnt fuel in the exhaust will be eliminated improving emissions and fuel consumption. The engine performs very, very well in fuel consumption and emissions running at a 'constant speed' turning a generator - its most efficient "sweet spot". Wankels lose efficiency dramatically when they are revved up and down as when directly driving a car. The engine has a vastly superior power-weight ratio than piston/crank engines and is about one third of the size and weight of a piston engine for a similar power output. All these positive attributes combine to make a superb range extender, when the wheels are turned by electric motors. If a car is plugged in each night and uses grid power to run most of the time, then wear on these units will be negligible. As the engine is only periodically used, the life of the engine is greatly extended. Also newer metallurgic techniques are being used to make the engines. Even when batteries are depleted, the Wankel can provide enough electricity to power the car and still be economical. The first ever series-hybrid plane flew in June 2013 - using a Wankel engine because of its small size and light weight, and an electric prop. The makers say it can be scaled up to around a 100-150 seater plane. The Wankel engine(s) can be in the fuselage for better weight distribution with small electric motors on the wings giving lighter, and cheaper, wings. About 5 companies still make Wankel engines for special purposes such as drones. The sooner they are introduced in road vehicles in series-hybrid form the better. The Wankel has finally met its niche.
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  35. marcnews75 There is no big end on a wankel. 
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  36. marcnews75 knobhead.
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  37. J. V. I go on facts me old boy. Facts!!!
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  38. Rotaries are better suited to constant speed, high efficiency genset applications rather than direct drive via gearboxes. In that application piston engines cannot compete. Rotaries are better suited for series-hybrid cars being much superior than piston engines. Direct fuel injection and laser ignition will improve the Wankel considerably when introduced. The problem of unburnt fuel in the exhaust will be eliminated improving emissions and fuel consumption. The engine performs very, very well in fuel consumption and emissions running at a 'constant speed' turning a generator - its most efficient "sweet spot". Wankels lose efficiency dramatically when they are revved up and down as when directly driving a car. The engine has a vastly superior power-weight ratio than piston/crank engines and is about one third of the size and weight of a piston engine for a similar power output. All these positive attributes combine to make a superb range extender, when the wheels are turned by electric motors. If a car is plugged in each night and uses grid power to run most of the time, then wear on these units will be negligible. As the engine is only periodically used, the life of the engine is greatly extended. Also newer metallurgic techniques are being used to make the engines. Even when batteries are depleted, the Wankel can provide enough electricity to power the car and still be economical. The first ever series-hybrid plane flew in June 2013 - using a Wankel engine because of its small size and light weight, and an electric prop. The makers say it can be scaled up to around a 100-150 seater plane. The Wankel engine(s) can be in the fuselage for better weight distribution with small electric motors on the wings giving lighter, and cheaper, wings. About 5 companies still make Wankel engines for special purposes such as drones. The sooner they are introduced in road vehicles in series-hybrid form the better. The Wankel has finally met its niche. It takes only 25 to 30hp to propel a large American car down the highway at 70mph. Yet they put engines in them that can output 150 to 200hp. Most of that output is for acceleration and heavy loads. Highly inefficient. The great thing about a series-hybrid is that the generating engine works totally independent of the demands of the electric driving motor, enabling maximum efficiency when running. This means the generating engines can be greatly downsized. The battery acts as an energy buffer to give acceleration boosts.
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  39. Oswaldo Garza Read my post on the rotary and its ideal applications. This bimmer guy is a complete fruitcake. The Rotary is used in UAVs (drones). The rotary is made by 5 companies over the world.
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  40. The user The real doktorbimmer Is an astroturfer. https://www.theguardian.com/commentisfree/libertycentral/2010/dec/13/astroturf-libertarians-internet-democracy
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  41. +Eternaly Random You change the oil after 5,000 miles on fully synthetic oil? You need to find out.
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  42. +Braydon Walsh A quality Fully Synthetic oil does not add reliability? My, oh my.
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  43. This engine is over 30 years old. They have changed a bit since then.
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  44. OreoThePanda It is not a matter of preference. The small size, weight, smoothness and high power/weight ratio means it is ideal as range-extender. Which will be its niche.
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  45. Mazda are \R&Ding HCCI ign.
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  46. It showed a air throttle plate on the multi-point injection, which aims to have a 14.7 to 1 ratio of fuel to air. Was there a throttle on the direct injection system?  That was not shown or stated.
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  47. +The real doktorbimmer Bimmer McBimface, you must stop making things up.
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  48. The Final Eclipse It takes only 25 to 30hp to propel a large American car down the highway at 70mph. Yet they put piston engines in them that can output 150 to 200 HP, a Rolls Royce's engine outputs 450 HP. Most of that output is for acceleration and heavy loads. It is highly inefficient because there is no supplemental power (with an energy buffer) to use when extra power is needed. Efficiencies rise when power is modularised into power units and modules brought in when needed - sequenced. The great thing about a series-hybrid is that the generating engine in the genset works totally independent of the demands of the electric driving motor, enabling maximum efficiency of both when running. This means the generating engines can be greatly downsized as the genset engine is sized for average use, not peak use. The genset can be charging the battery energy buffer when the vehicle has low demand. The battery acts as an energy buffer to give acceleration boosts and assist in heavy loads. The positive attributes of a Wankel engine, one third of the size and weight and very smooth, combine to make a superb range extender easily hidden in a vehicle. If a car is plugged in each night and uses grid power using the batteries to propel the vehicle most of the time, then wear on these Wankel genset units will be negligible as it will be a part time engine (genset). Even when batteries are depleted, the Wankel can provide enough electricity to power the car and still be highly economical. The sooner Wankels are introduced in road vehicles in series-hybrid form the better. The technology is all here. Once successful and the public accept a Wankel, as decades of negative propaganda have poisoned their minds, this should pave the way for larger implementations in Wankel series-hybrids. There have been some advances in Wankel engines negating many of the disadvantages. HCCI ignition by Mazda and SPARCS and CREEV in the UK. CREEV is an ‘exhaust reactor’ that consumes unburnt exhaust products (was a big problem with Wankels) delivering lower emissions and improved fuel efficiency. A sort of turbo. Wankels are very efficient when run at a constant speed as in genset applications (range-extenders). The Wankel has finally met its niche. Makers are too slow in implementing. Once we see one successful implementation we may see a flood. Mazda and Toyota have pooled resources to produce a viable range-extender.
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  49. The Final Eclipse "Can't tell if your critiquing me or defending me" Just batting the ball.
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  50. The real doktorbimmer Bimmer McBimface, you must stop making things up.
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