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Ubi bene ibi patria
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"Camshaftless" Engines
I don't think this is a re-post - if so, my apologies.
Cheers JB The Future of the Internal Combustion Engine - Inside Koenigsegg - YouTube
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05-30-2013, 11:12 AM
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pretty neat stuff..
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2013 F250 Fx4 6.7 2012 Volvo XC70 2006 330 Ci 2007 Boxster 2005 Ducati Moster S2R (Sold) |
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05-30-2013, 11:31 AM
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20% reduction in fuel is pretty significant for just modifying the valvetrain.
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Brent The X15 was the only aircraft I flew where I was glad the engine quit. - Milt Thompson. "Don't get so caught up in your right to dissent that you forget your obligation to contribute." Mrs. James to her son Chappie. |
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05-30-2013, 11:55 AM
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Get off my lawn!
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That kind of like the technology from F-1 engines.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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05-30-2013, 12:32 PM
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I think they use pneumatic springs, but still have camshafts.
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Brent The X15 was the only aircraft I flew where I was glad the engine quit. - Milt Thompson. "Don't get so caught up in your right to dissent that you forget your obligation to contribute." Mrs. James to her son Chappie. |
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05-30-2013, 12:58 PM
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Cogito Ergo Sum
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Very cool!
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05-30-2013, 02:44 PM
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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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The way I heard it no camshafts. Near the end of the video he talks about the left side of the head only having a cover area where the camshaft chains used to be.
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Hugh |
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05-30-2013, 03:18 PM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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I have a camshaftless engine.
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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05-30-2013, 03:51 PM
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drunk and stupid
Join Date: Jan 2009
Posts: 8,619
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I have a springless valve train.....who needs springs
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05-30-2013, 04:17 PM
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Quote:
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05-30-2013, 04:30 PM
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I'm with Bill
Join Date: Jun 2005
Location: Scottsville Va
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Those are some huge numbers, and looking for production in the next three years. Very nice.
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Electrical problems on a pick-up will do that to a guy- 1990C4S |
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05-30-2013, 04:31 PM
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Misunderstood User
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Would you feel as positive if, for argument's sake, it was a US company that the government gave money to a company similar to, I don't know- maybe like Tesla?
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Jim 1983 944n/a 2003 Mercedes CLK 500 - totaled. Sanwiched on the Kennedy Expressway |
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05-30-2013, 05:39 PM
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AutoBahned
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I think I need more cam
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05-30-2013, 07:52 PM
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Quote:
angela
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Hello http://forums.pelicanparts.com/off-topic-discussions/1102514-we-lost-amazing-woman-yesterday.html |
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05-30-2013, 07:58 PM
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Interesting.
. Different topic: Pistons having to constantly change directions seems so outdated to me.
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Don . "Fully integrated people, in their transparency, tend to not be subject to mechanisms of defense, disguise, deceit, and fraudulence." - - Don R. 1994, an excerpt from My Ass From a Hole in the Ground - A Comparative View |
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05-30-2013, 08:29 PM
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Quote:
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05-30-2013, 09:37 PM
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There once was a camshaft that had ports cut into the cam and would function as a valve. I tried to google it but found nada
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" Formerly we suffered from crime. Today we suffer from laws" (55-120) Tacitus |
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05-30-2013, 09:41 PM
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Join Date: Jul 2012
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Didn't one of the M5 motors a few years back have solenoid-actuated valves instead of cams? Or was that just a prototype/concept thing that never made production?
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Mototsports photog who occasionally tries to write things. '12 Mazda2 (DD) '87 325is (Now mechanically sound, but still ratty. Still in resto/repair stages, soon moving onto upgrades. Will eventually be a tarmac rally/targa car, if all goes to plan.) Hoping to have a 911 to take to Rennsport V |
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05-30-2013, 11:50 PM
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Where does the compressed air come from? AC type compressor?
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05-31-2013, 12:15 AM
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Max Sluiter
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Quote:
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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05-31-2013, 12:19 AM
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Carrera
1986 Porsche 944 2.5l
1971 Porsche 911S
