AUTOMOTIVE INSIGHT: FEV Cylinder Deactivation

June 20th, 2008 at 3:50pm

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Automakers are looking far and wide for ways to save fuel, and cylinder deactivation is a great way to do it.

If you can shutdown some of an engine’s cylinders when you don’t need all the power you can save a lot of fuel. Chrysler and GM both use this technology on some of their pushrod V8s, which gives them about 10 percent better efficiency.

The supplier company FEV is developing a system that works on more advanced overhead cam engines. At the SAE World Congress in Detroit they showed off a collapsible roller finger follower. This technology is a simple and cost-effective way to add cylinder deactivation to smaller engines.

Look for more of this kind of technology in the future, especially as automakers work to meet the strict fuel economy standards that are coming in 2020.

4 Comments to “AUTOMOTIVE INSIGHT: FEV Cylinder Deactivation”

  1. Tom Martin Says:

    These are interim steps to support the internal cumbusion engine and current manufacturing process.

    I hope this isn’t distracting auto manufacturers from developing vehicles that can exceed 50 mpg, i.e. plug in hybrids, all electric, fuel cell, solar panel roofs, etc.

  2. Jason Lithgow Says:

    There is no reason to believe that cylinder activation technology enhanced internal combustion engines cannot be used to further develop hybrid car technology and to be used other applications such as tractors and other heavy hauling equipment.

  3. Sanjay Says:

    Cylinder deactivation technique has not been explored so far. This technique can yield fuel efficiency much more than the world has seen with a minor modification in it.

  4. sanjay Says:

    Cylinder deactivation technique has been implemented with a innovative patentable advance technique giving more than 35% fuel efficiency at IDling & upto 20 fuel efficiency in 30 % rated load of engine (in big 6 cylinder engines) much more effectively as against any other similar technique used so far like, DOD, VCM, MDS.