04-15-2014, 01:15 AM | #1 |
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Revolutionary turbo tech from MB of all places
I saw this on the Road and Track Facebook wall and thought it was pretty cool.
They deconstructed a turbo so the turbine with exhaust gases are in the back of the engine while the compressor is up front via a shaft through the engine. Hot gases stay in back away from the intake side. Imagine such a turbo crossing the block of the I6 in the S55? That would be revolutionary. Have all the exhaust gases on the right side and the intake air on the left side. .
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04-15-2014, 01:41 AM | #2 |
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04-15-2014, 07:38 AM | #4 |
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Cool tidbit, thanks for sharing
Very smart folks at work here I guess one of the drawback of such a system in the increased inertia caused by the long shaft that slows down turbo response. Having the electric motor/generator on the turbo most likely compensates for the added inertia. However, IMO, this setup would not be effective on a conventional non-electrically driven turbo and would result in too much lag. |
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04-15-2014, 08:22 AM | #6 |
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I am a bit puzzled by the thread title though.
Revolutionary turbo tech from MB of all places. While it is true that MB are not necessarily renowned for their sports cars, innovation has continuously been partof their history. Many technology firsts appeared on MB vehicles. Heck, the two founders independently and concurently invented the gas powered motor vehicle . Last edited by CanAutM3; 04-15-2014 at 04:18 PM.. |
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04-15-2014, 01:47 PM | #8 | |
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Also, this thread probably belongs in the General Automotive sub-forum.
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04-15-2014, 01:52 PM | #9 | |
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04-15-2014, 03:01 PM | #10 |
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04-15-2014, 03:06 PM | #12 | |
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Based on what insiders are saying, the upcoming W205 C63 sheds a fair number of pounds over the current W204 and will likely be comparable to the F80/F82 in terms of weight. The upcoming 911-fighting SLC is also being tuned by the same person who tuned the 991 Carrera. So yes, MB does have some serious cars on the horizon. |
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04-15-2014, 03:09 PM | #13 | |
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04-15-2014, 03:10 PM | #14 |
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Merc are on a bit of a roll and some of their new cars are getting rave reviews- the A45 AMG has been universally praised for it's handling , suspension and motor. It has trounced the M135i in every comparo I've read despite when optioned the same not being much more expensive. Normal BMW wins such as the steering , suspension, handling and fun factor were not evident and went to the Merc and despite the M135i being a great car it seems Merc have upped their game while BMW continue to soften their cars for the masses. Worrying times ahead for BMW.
Let's hope they get the M3/4 right because I'm betting the new C63 will be a great car. The last gen just fell short as a drivers car but was close in many instances to taking the M3s crown in this segment. The AMGs have always had fantastic motors but could this be the gen where Merc finally steals BMWs thunder on handling and fun as well? Can't wait for first reviews of the new Ms - the M5 and 6 no longer outshine their competitors in the same way their predecessors did- let's hope the M3/4 can bring back some old school BMW magic because at the moment I feel that BMWs reputation as the keen drivers choice ( including M) are living off their history and great cars from the past- new M3/4 need to be great.
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04-15-2014, 03:47 PM | #16 |
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Mercedes innovation
Very cool. Not so surprising that Mercedes is innovating since Gottlieb Daimler patented the technique of using a gear-driven pump to force air into an internal combustion engine in 1885. I was just at the Mercedes Museum in Stuttgart and saw some very cool stuff.
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04-15-2014, 04:04 PM | #17 | |
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A supercharger is mechanically connected to the engine so its speed is directly proportional to the engine speed regardless of load. A supercharger compressor spins at a much lower speed than a turbo and therefore needs to be much bigger to supply the same mass flow. Due the larger size of the compressor, the lower rotational speed and how it is driven, the inertia of the shaft has negligible impact on a supercharger. Since a turbo is free spinning, inertia is extremely important for response time. With the high rotation speeds involved and the relatively small and light compressor and turbine wheels, the weight of the shaft is certainly not negligible here. This is the reason we don't see that many (not to say none) "split" turbos on high performance applications out there. IMO, it is the avenue of the electric motor/generator on the turbo that allows this concept to work. Last edited by CanAutM3; 04-15-2014 at 07:02 PM.. |
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04-15-2014, 04:21 PM | #18 | |
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04-15-2014, 05:20 PM | #19 |
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04-15-2014, 05:33 PM | #21 |
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I know there's little chance of seeing details, but I'm curious how that shaft is fed through the engine to the front and what it's made of in order to keep it's mass down.
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04-15-2014, 05:48 PM | #22 |
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MB has been innovating for years now. Stability Control? Traction Control, ABS. They were the first to implement the technologies. MB knows their stuff. They've been innovating with cars like the SLS line of cars, and their Black Series line. It's BMW who's fallen behind.
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