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

  1.  @edwardpiper2749  Hydrogen fuel cells are not ICE engines.
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  2.  @lucasvanhamburg4937  Look up Toyota's solid state battery.
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  3.  @lucasvanhamburg4937  In speed? No. An EV holds the record for fastest car around the Nurburgring. In overall efficiencies from the original source of energy to the car running, EVs leave ICE cars standing.
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  4.  @davidmason8371  You need to get up to speed on EV charging and how many and where they are. Subscribe to Fully Charged. That is superb on charging and EVs.
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  5. Lubrication of the top piston is the same as the bottom.
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  6. Read Jason's pinned post at the top.
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  7. @spinnymathingy3149 Yes, the tide has turned.
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  8. FACR TORNZ An electric motor has continuous power delivery. A 4-stroke piston engine has one explosion forcing down a cylinder every 2 revs of the crankshaft. The other three strokes are parasitical pumping losses meaning the crankshaft needs a heavy flywheel to force the piston back up. A piston engine is highly inefficient. The absence of back EMF in an electric motor on startup adds to the instant torque.
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  9. Avery-John EV's have 350 mile range and do that 350 miles cheaper than gasoline. They also have far fewer moving parts, etc, etc. They are the prime point, which went over your idiotic know-it-all head. Weight is not a big player in all this. Weight only matters in aircraft, or starting from stationary.
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  10. The criticism is the same for any side valve engine. Straight-4 side valve engines had the advantage of not being so high, giving lower hood lines and lower centre of gravity.
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  11.  @ericgosselin1947  Around 250 miles range on some EVs right now. Solid state batteries will mean around 1,000 miles.
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  12.  @EngineeringExplained  "Synthetic will likely make sense for certain applications" There are supa-dupa expensive specialist oils for niche specialist applications. This synthetic fuel will fall into that category.
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  13. doktorbimmer has committed suicide knowing that it is coming back in a hybrid.
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  14. Mazda Patent Reveals Rotary Engine for Use in Hybrids http://www.thedrive.com/sheetmetal/8618/mazda-patent-reveals-rotary-engine-for-use-in-hybrids
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  15. The wave disc died. Great in theory at the time, with a model built, but zero emissions have taken over.
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  16.  @screwaccountnames  The Japanese aim to use the hydrogen primarily for heavy industry, rather than oil. In natural gas networks 10% of the gas can be hydrogen without any adverse affects and using existing gas appliances. That is 10% less emissions from natural gas, which tends to burn in urban areas with lots of lungs breathing in air. I do believe a town in North-east England was tested with 10% hydrogen in the gas network. Whole city gas networks can be moved over to hydrogen, but then the appliances will need modification. Either way less gas imported from Russia who can ramp up prices at will - as we have seen. So if hydrogen is economically made for gas networks and industry it will roll over to heavy vehicles like trains, buses and trucks. Lines can be de-electrified, removing the expensive to install and maintain overhead wires. Dirty diesel trains can be replaced with cleaner hydrogen.
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  17. It takes the same amount of electricity to produce gasoline as to power an EV. Refineries take an enormous amount of electricity. One refinery in the UK consumes the equivalent of the cities of Leicester and Coventry combined having a direct link to the local power station. EVs charge directly from the power station, via the grid, eliminating the intermediate electricity used to produce the gasoline. The head of the British National Grid said that the grid needs no more capacity if all cars went over to be EV soon, as the existing capacity is fine. As gasoline production drops releasing electrical generating capacity, the released capacity is taken up by EV charging. EV's are massively cleaner.
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  18. @The real doktorbimmer Please get therapy.Please.
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  19. You have to wait a year.
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  20. Why isn't this installed at the factory?
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  21. Koenigsegg in Sweden have developed a camless engine using pneumatically operated valves. The engine has no cambelt or camshaft making it smaller and lighter. The oil pump need not be as powerful reducing HP taken off the crank. Oil will last longer. A management system can make it run at an Atkinson cycle, 4-stroke or a 2-stoke cycle on the fly. Fiat use electric solenoids on the inlet valves of one engine. The Koenigsegg solution is much better than this complexity. It is best they ditch this complexity for camless engines. Koenigsegg are introducing a camless engine in one of their supercars.
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  22. Rootes had tested over a millions miles a TS4 (4 cylinder version), which was ready for production and fitting in a vehicle. Chrysler bought out Rootes and told the English engineers to destroy the TS4 engines. They hid some of them from the Americans. This superb engine was dropped so Chrysler's appalling existing range could be fitted in the trucks. Commer went downhill after the TS3s were phased out in their trucks. A TS4 made its way to NZ were it was reconditioned and ran.
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  23.  @Bojaxs  Two wrongs do not make a right.
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  24.  @claireelliot6846  No, live in a city. I want no emissions.
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  25.  Lord Tachanka  Nonsense!
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  26.  Lord Tachanka  You must not make things up.
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  27.  @papasmith7648  I have two charging points outside of my block. Big business is fitting charging points on driveways. They are going up all over.
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  28. He says he was born in 1953. no kidding.
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  29.  @wiegraf9009  It is not VAG, it is VW Group. They are in all market sectors. BTW, the Lambourgini SUV is an Audi reskinned.
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  30. They also pollute, far , far less. Million of lungs in towns and cities will not be exposed to poisons.
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  31. With the advance of the EV with many having range extenders (generators only turning an electric generator), it would be nice to see what the ideal configuration for a constant speed or stepped speed generator engine. These engines will be the norm and not too far into the future.
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  32.  @DanafoxyVixen  "Rotary engines currently are installed into some of the world’s most successful platforms. These platforms include: ♦ Textron’s Shadow, ♦ IAI Malat Searcher, ♦ Elbit Hermes 450, ♦ Leonardo’s Falco, ♦ IAI MBT Harpy, ♦ IAI MBT Harop, ♦ Schiebel’s Camcopter, ♦ The UK’s Watchkeeper programme.
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  33. In the UK pure mineral oil is a rare sight on shelves. Most is semi or fully synthetic oil.
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  34. The company died. The charge of EVs led to its demise.
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  35. Mazda have done very promising research on HCCI ignition for its SkyActiv-R rotary engine project using research from its SkyActive 2 program. They have removed the need to locate the spark plug outside the combustion chamber to allow the rotor to sweep past. Mazda solved this in the SkyActiv-R rotary project. Rotaries generally have high compression ratios giving the design easy adoption of homogeneous charge compression ignition (HCCI). It looks like the next Mazda rotary will not have a spark plug and be HCCI ignition. Fuel consumption will match piston engines and when used at a constant speed range-extender gennny as in a hybrid, outperform piston engines with all the advantages of low weight, small size, super-smooth, simplicity, etc. The efficiency and longevity of rotaries is excellent when at constant speeds and low revs. The expectation will be that the engine will be introduced in 2020, the 100th anniversary of Mazda. Looking good. Explanation of HCCI from wiki: "Homogeneous charge compression ignition (HCCI) is where the fuel/air intake is a pre-mixed lean air-fuel mixture then compressed to the point of auto-ignition. Electronic spark ignition is eliminated. Gasoline engines combine homogeneous charge (HC) with spark ignition (SI), abbreviated as HCSI. Diesel engines combine stratified charge (SC) with compression ignition (CI), abbreviated as SCCI. HCCI engines achieve gasoline engine-like emissions with compression ignition engine-like efficiency. HCCI engines achieve low levels of nitrogen oxide emissions (NO x) without a catalytic converter. However, unburned hydrocarbon and carbon monoxide emissions still require treatment to reach automotive emission regulations."
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  36. The real doktorbimmer You need therapy Sad but true.
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  37. +Rainer67059 The engine we have now is really a Paschke engine as he developed it. Felix Wankel's engine was not taken up.
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  38. +Hercules Rockefeller RX-Vision http://images.cdn.autocar.co.uk/sites/autocar.co.uk/files/styles/gallery_slide/public/images/car-reviews/first-drives/legacy/tokyo-show-2015-web-017.jpg?itok=_HjiYt-9
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  39. +Ryan McIntyre the RX-8 was dropped because Mazda had put all resources into Skyactiv. None were available to work on the newer rotaries. that is now different.
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  40. Hercules Rockefeller To put a man on the moon costed a fortune with some of the world's best technical brains involved. The same money in R&D to make a 100% clean and highly economical engine would have produced one by now.  I believe baseball caps taste good with mustard. 
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  41. Hercules Rockefeller Food for thought is the progress of the electrical battery. The lead-acid dates from the 1850s and is still used in cars. Reminds me of the piston/crank engine's progress, which is just over zero.
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  42. fully synthetic oils did last longer for sure. Mobil 1 advertised 25,000 mile oil change intervals. But not the modern so-called synthetic oils. Mobil 1 and others did have synthetic oils in that none of it came from a hole on the ground. I think it was Castrol who were using a mineral base oil for their "synthetic oil". Mobil took them to court and the court deemed that Castrol's was fully synthetic. Since then few fully synthetic oils have been on the market. You have to be in the know to know what is a fully synthetic oil. I believe in Germany fully synthetic oil has to have no mineral oil in it. They do not go along with the US court ruling. So, modern so-called synthetic oils break down quicker than the real old synthetics. The vid is right in that many of the additives that are in mineral oils are already in the fully synthetic base oils, so will not break down as quickly. So fewer additives are put in the synthetic oils. The more additives added, the less of the oil which lubricates. 100% mineral oils are now near obsolete being difficult to buy. When fully synthetic oils are available and well priced it is foolish not to use them.
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  43. http://www.motorauthority.com/news/1108403_report-mazda-to-launch-hcci-engine-in-2018
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  44. JJ K Yes, the rotary radial engine is not a Wankel. The Wankel is vastly superior.
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  45. The real doktorbimmer The rambling thoughts of a deranged mind.
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  46. +Jason Young "that is more than offset by the amount of fuel going out the exhaust." More myth. A rotary at a constant speed is equal to a piston engine right now. HCCI ign, laser ign, and exhaust reactors even improve it. The small size means it is ideal as a part time genny engine in a hybrid.
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  47. +Yol Mak Not another one!
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  48. Look see this guy is a clear astroturfer. If an engine type is obsolete it is not made and there is no R&D on it. The Wankel is made with R&D ongoing with new patents filed recently. He is told this repeatedly, yet continues on the same mantra. I wonder how much he is paid.
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  49. Things have moved on greatly.
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  50. Bimmer McBimface, please stop telling lies.
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