Archive

Archive for the ‘Engine’ Category

Using steam to make combustion engines more efficient

May 15th, 2007 Comments off

The June 2007 issue of Popular Science profiles a number of inventors that the magazine believes are of significance. Being in the innovation game, I respect the point that PopSci makes around “invention” and how it’s almost become something that people don’t value anymore.

One of the inventions highlighted in an article called Six Strokes of Genius was what PopSci called the “Steam-o-Lene Engine” created by Bruce Crower. Crower has basically taken the tried and true four stroke conventional combustion engine and added two additional strokes. His concept is to inject water after the exhaust (4th) stroke into a cylinder. The water evaporates into steam due to the heat inside the engine hitting the metal in the engine that is > 1000 °F. The evaporated steam then powers another stroke of the cylinder. Last, when the next compression stroke occurs (6th), the steam is condensed back to water due to the pressure and evacuated from the engine.

The fascinating part of this to me is that you recover some of that lost heat in an engine back into useable energy for the car. PopSci quotes Crower as saying that he believes he could increase gasoline engine efficiency by 40%. (!)

I’m guessing that the injection of water and subsequent removal is one of the hardest parts to enginer. Oil and water don’t mix after all 🙂 And they definitely shouldn’t be mixing inside a combustion engine. Evidently he’s applied for patents and will them be ready to try to commercialize the technology. After doing some searching on the net, it looks like this wasn’t exactly new news, but I hadn’t heard about it previously:

Links: Crower Six Stroke in Wikipedia

Categories: Automobiles, Engine, Link, Technology Tags:

Ummm forget the M3, now I want an RS5

May 12th, 2007 3 comments

I forgot to mention that I test drove an Audi RS4 a few weeks back, easily the most entertaining car I’ve driven in a long time. The power of the engine was beyond description and unlike most Audi’s it felt nimble on it’s feet, or tires as it were. I loved the feel of the gearbox and after pressing the “S” button, the sound of the engine at full throttle with the exhaust opened up was a thrill.

So when I read about the RS5 on Autoblog (via Car Magazine) I was really intrigued! If Audi can do what they did with the RS4, I imagine the RS5 is going to be an amazing machine and potentially more desirable than an M3 (to me).

Links: Autoblog, Car Magazine

Categories: Audi, Automobiles, BMW, Engine, Link Tags:

Retro-future Corvette

May 7th, 2007 Comments off

I went to the Hillsborough Concours d’Elegance this weekend, it’s one of the oldest classic car shows in the country. I forgot to take my camera with me, so had to resort to the camera phone. One of my favorites was this old 1950s (I think, maybe 60s) era Corvettes. Look closely at the second picture, the owner had inserted a modern Corvette engine into the chassis, I think it’s an LS (LS2 or LS6?) engine so close to 400 hp. Not sure if the suspension had been updated, I think they would’ve frowned on my crawling under the car, but it sure looked like a blast to drive!

Link: Hillsborough Concours d’Elegance

1950s Corvette with LS2 engine 1950s Corvette with LS2 engine

Categories: Automobiles, Engine, Pictures Tags:

BMW 335i has a conservative HP rating?

August 23rd, 2006 Comments off

Automobile Magazine was so impressed with the new 2007 BMW 335i coupe (E92) that they slapped it on a DynoJet and are guessing that engine is pulling close to 350hp/360 lb-ft torque instead of the rated 300hp. I’ve been eagerly awaiting the new M3 but now I’m wondering what tuners will do with this twin-turbo engine. I believe the 335i will come out in sedan form soon (I’ve got a preference for sedans) and it might be even more fun to tune than buying an M3 stock. We’ll see what happens, the Audi RS4 has really upped the ante for BMW!

Categories: Automobiles, Engine, Link Tags: