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

  1. V16 in this day and age? I see the VW Group is being adventurous.
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  2.  @Dqtube  You need to read and understand what I wrote.
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  3. You wear well Jason. What do you eat?
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  4.  @EngineeringExplained  The simple fact is that ICE engines emits poisons right in front of millions of lungs. You cannot get away from that.
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  5. Ahmed Tarek I fail to see the relevance to lag and boost.
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  6. The real doktorbimmer Please get therapy
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  7. The best range extender is a rotary. Small, no vibration and light. Mazda were looking at HCCI for constant speed rotaries. Mazda are introducing a rotary range extender. No news if it will use HCCI.
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  8. For Toyota to go to BMW they must have bigger fish frying. This is a low volume car to fill a niche while Toyota go onto bigger and better things.
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  9.  @richterman3962  Quality fully synthetic does not turn to sludge.
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  10. The cheap running costs is one of the prime reasons taxis are moving over to EVs.
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  11. Dyani Massa You must understand that Bimmer McBimface needs therapy.
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  12.  @papasmith7648  I would rather have an EV. Big business in Europe is electricians fitting EV charging points in garages and drives.
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  13. The real doktorbimmer You must stop telling lies.
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  14.  @Xander1Sheridan  Nonsense. BTW, In few years time the UK will have decommissioned all its coal power stations.
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  15. The wiki article is good on the rotary engine. Have a look.
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  16. something1random23 Sludge will not occur with a quality fully synthetic oil. Take note of the vid please.
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  17. The real doktorbimmer Bimmer McBimface,, you must stop making things up.
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  18. +Steven King Anyone who knows what is happening with rotaries in research would laugh at that.
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  19. 94XJ​​​​ I am on about the wankel design. I see you are still pushing that old chestnut the apex seals. That has been solved decades ago.  A modern Wankel, with all the new advances, running at a constant speed at its "sweet spot" turning a genny will outperform a piston engine.  They are suited for cruise ships where space in the hull is revenue. Large banks of largish wankel gensets in a modular formation, take up a fraction of the space of those humongous diesel engines. Rotary engines are also smooth, quiet and vibration free which is a great advantage in a passenger ship and greatly aids in revenue generation.  Now if these Liquid Piston designs get off the ground then clearly curtains for piston engines. The sooner the better. 
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  20. +Hercules Rockefeller He knows nothing about rotaries.
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  21. The British National Grid says there will be no problems on EV adoption. One refinery consumes the equivalent of the cities of Leicester and Coventry in electricity to produce petro fuels. With EVs this output is then transfered to EVs. No problem.
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  22. Jason:- "they are not very efficient" They are hopelessly inefficient, with approx 80% of the energy in a tank wasted. You cannot make a silk purse out of sows ear.
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  23.  @ImSPN  The same reason Illmore in England made Mercedes Benz engines.
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  24. +Engineering Explained Rotron, who specialise in UAV applications of rotary engines have designed and built an engine to operate on diesel fuel for NATO. An innovation is flame propagation. This ensures the flame burns smoothly across the whole moving combustion chamber. The fuel is pre-heated to 98C before injection into the combustion chamber. Four spark plugs are utilised aligned in two pairs. Two spark plugs ignite the fuel charge at the front of the rotor as it moves into the combustion section of the housing. As the rotor moves the fuel charge, the second two fire a fraction of second behind the first pair of plugs igniting near the rear of the rotor at the back of the fuel charge. Lazer ignition using one plug can do the same. There is substantial ogoing R&D on rotaries. Put all the advances into one package and it is bye, bye for the heavy, cumbersome piston crankshaft engine. Haver an electric transmission using electric traction motors and rotaries are here to stay. In series hybrid a rotary would only be an part time engine.
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  25. The real doktorbimmer  Please get therapy. Think of your family who have to put up with you. You are obviously very old and senile. 
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  26. +Reploidx9 Bimmer is either: ♦ A Mental case. ♦ An Astroturfer. ♦ Or both or the above. He goes all over the Internet saying the same thing despite evidence that he is he writing pure balls.
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  27. The real doktorbimmer Nutball, you said no one makes rotary engines. They do. About half of UAVs are rotaries.  Austro Engines Rotary: http://austroengine.at/en/products Rotron make six versions: http://www.rotronuav.com
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  28. The real doktorbimmer Bimmer McBimface, you forgot your meds again.
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  29. The real doktorbimmer, will you reveal the details of this scam on DARPA please.
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  30.  @kens97sto171  If you are saying ICE cars are cleaner, you are getting ridiculous. There is nothing in sight to improve ICE cars: the oil production, hopelessly inefficient engines, transportation, etc. EVs in a matter of a few years will be using solid state batteries. Wise up. Look.
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  31.  @kens97sto171  In the UK one refinery uses the equiv consumption of the cities of Coventry and Leicester combined just to refine oils. This creates pollution in burning fossil fuels to create the petro fuels. Then the fuel is burnt in vehicles creating more pollution, right under people's noses. Polluting twice. Two processes to get vehicles moving. Charging batteries is only one process, with none under people's noses. You are doing a bad job trying to justify the unjustifiable.
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  32.  @warboyrb  Overall EVs emits far less pollutants overall. They do. I never made it up.
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  33.  @spartanx169x  An engine is designed to run at a set temperature whether in Alaska or Texas. The temperatures inside an engine are vastly greater than say 40C ambient in Texas.
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  34.  @FSXgta  I never actually suggested that. But eliminating combustion engines in urban areas ASAP makes lots of sense. The UK has announced it will ban the sale of combustion cars in nine years time. Enough time to phase out the poisonous cars.
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  35. The Japanese have started up a helium gas cooled nuclear reactor - the first commercially. The helium reaches 1,000 C, which is ideal for cracking water into hydrogen economically. They will make hydrogen economically at the nuclear plants. The hydrogen will be used mainly for heavy industry, but vehicles can use it, probably in hydrogen fuel cells. In March Mazda are launching the MX-30 hybrid with a Wankel engined generator. I believe the Wankel is adaptable for hydrogen. Wankels are about 25% more efficient burning hydrogen. As the Wankel will be running at a constant speed then higher efficiencies again. The Japanese market may get the hydrogen versions first.
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  36. Is the BMW's engine setup like this? If not, it is not worth mentioning.
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  37. Billie Bob Norton III That is a legal issue not a technical one.
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  38.  @imakevideos5377  EVs that do high mileages are very cheap to run paying for themselves quite quickly.
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  39.  @stuarthart3370  The Coventry Climax's longevity never mattered, only its performance. Fire Brigades would stomach the higher maintenence costs to get the performance instantly.
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  40. AIE UK Ltd Excellent post. The video is rather too eager to dismiss the rotary engine. New developments, as you have introduced, are coming in. Another is Mazda's ignition system using HCCI or laser, which hopefully we will see on their range extender rotary in 2019.
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  41. Not so. See my post on the new Mazda SkyActiv-R rotary engine. Mazda have done very promising research on HCCI ignition for its SkyActiv-R rotary engine project using research from its SkyActive 2 program.
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  42. .
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  43. Dustin Comp What put makers off the wankel was also the licence fees. That wasn't an issue in piston engines.  Yes, the Piston engine in the 1950s was not a great thing at all - and still is not.  80% of the fuel in a tank is wasted. 
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  44. The real doktorbimmer Benz have a lot invested in antiquated piston technology. The 1970s fuel embargoes and subsequent fuel price hypes reduced the Wankel's appeal. Nothing else. 
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  45. The American M1 Abrams tank uses an auxiliary rotary engine power unit. All power came from the main turbine and consumed masses of fuel when the tank was stopped. The auxiliary rotary genny may be used when the tank is stopped to provide a-c/heating and all electrical power when the main engines are off. The turret is operated by the rotary as well. So the tank can be 'hull down' with the engine off and turn the turret & gun. The rotary engine may be used even when the main turbine is running and the tank is moving. The rotary engine genny was developed by the TARDEC U.S. Army lab. It has a high power density of 330cc modified to operate with various fuels such as, high octane military grade jet fuel. The entire fleet of Abrams tanks were retrofitted with the rotary auxiliary units. It saves 14% in overall fuel consumption. The rotary is inside the tanks reactive armour shield, so if disabled the tanks has power and the RPG's will bounce off. The small size, high power output for its size and smoothness were advantages which led to the rotary being chosen. I believe it is made by PAT. Things are moving for the Rotary. A new diesel engine is being developed for the tank to give a smaller heat signature, with the rotary auxiliary being kept.
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  46. +The real doktorbimmer Bimmer McBimface, you are not a messenger, you are demented.
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  47. +The real doktorbimmer Bimmer McBimface, has been given many over the months, but selective amnesia develops in this astroturfer,
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  48. ***** Good point. The design flaws on piston engines is immense. The pumping loses can't be overcome.
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  49. The M1 uses a Wankel as the aux' engine.
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  50. The real doktorbimmer You must stop telling lies.
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