Camless combustion engine may improve ICE efficiency - Smart Car of America Forums : Smart Car Forum

BigWarpGuy · 07-13-2009, 05:28 PM

Here is a Gizmag about the camless engine.Perhaps it could improve the mpg and performance of the Fortwo?

jetfuel · 07-13-2009, 06:49 PM

...by the article it consumes about the same power to run the compressor as it does to run a cam...max lift 14mm for a few miliseconds...
...sorry warp...don't see the future of this engine....
...while on the subject...there was an engine way back when that...better yet...here..

Pioneer Sleeve Valve Engine

jetfuel...

smarticus · 07-13-2009, 08:04 PM

An American, Charles Knight, developed a sleeve valve that worked before this. In 1908 he already was working with Daimler, who showed a prototype in 1909, and had a production model by 1910. They bought rights to his design for the sleeve valve engine until 1920.
It produced more power for it's size and consumed less fuel doing so. With the improvement in fuels, compression and power production, the engine type fell out of favor because the now higher heat production rose beyond the then current metalurgy's ability to handle it. It would be interesting to revive a sleeve valve engine with todays materials, such as ceramic coatings on exotic alloys. I'd bet we won't see a new version.

**jimvw57** · 07-14-2009, 08:12 PM

Don't forget about the good old Mazda RX motors, with no pistons and less moving parts, the Wankel motor.

jetfuel · 07-14-2009, 08:36 PM

...Wankel engine had a draw back if you were a lead foot..if over revved it took what it seem forever to come out of the red zone...ask me how I know...but a very nice engine all the way around

jetfuel

Big Panda · 07-14-2009, 08:48 PM

Oh, I agree with 'jet'. I've had 2 Mazda rotarys....an RX2 and an RX3. BOTH were gas guzzlers. The '2' was a stick and it got the best mileage at around 16 mpgs!

But boy was it FUN to race some unsuspecting Mustang (that was for YOU 'jet') or Chevelle owner! They never had a chance.......

jetfuel · 07-14-2009, 08:53 PM

Quote:

Originally Posted by Big Panda

Oh, I agree with 'jet'. I've had 2 Mazda rotarys....an RX2 and an RX3. BOTH were gas guzzlers. The '2' was a stick and it got the best mileage at around 16 mpgs!

But boy was it FUN to race some unsuspecting Mustang (that was for YOU 'jet') or Chevelle owner! They never had a chance.......

...with my Mustang racing begins at 100...any lower and we're just cruising...

jetfuel...