[DeTomaso] NPC: no more cams

[Larry]

Chinese carmaker  <http://newatlas.com/qoros-2-plug-in-hybrid-suv/37162/>
Qoros has joined  <http://newatlas.com/koenigsegg-regera-geneva/36376/>
Koenigsegg in demonstrating a
<http://newatlas.com/camless-combustion-engine-cargine-engineering/12200/>
camless engine. Rather than using a traditional camshaft to control an
engine's valves, the QamFree motor uses electro-hydraulic-pneumatic
actuators to provide precise control over each valve for more power and a 12
to 17 percent improvement in fuel economy.

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<http://newatlas.com/qoros-qamfree-camless-engine/43045/pictures?thumb=true#
picture5> FreeValve's clever actuators

In most engines the camshaft's rotating lobes push rockers that open the
valves and allow valve springs to shut them. Unfortunately, this process
involves a stage where the valves are partially open or shut, which means
the system isn't always operating at ideal efficiency. 

Rather than continuing to use this technology, which Koenigsegg likens to
"playing a piano with a both hands tied to the opposite ends of a
broomstick," the QamFree engine allows far greater control over the engine's
intake and exhaust valves thanks to electro-hydraulic-pneumatic actuators.

 
<http://newatlas.com/qoros-qamfree-camless-engine/43045/pictures?thumb=true#
picture6> 

The engine has been developed in conjunction with FreeValve AB, one of
Koenigsegg's sister companies. According to FreeValve, the technology
reduces fuel consumption by 12 to 17 percent when compared to a modern,
direct injection engine with variable cams.

Qoros also says the QamFree engine allows the company to eke more power from
a more compact package, which should mean punchy performance from engines
that meet the ever-tightening Euro and Beijing emissions standards.

Unfortunately, there's no mention of a release or production date for the
engine, although Qoros does loosely suggest we might see it in future
models. Currently, the engine remains a concept.

Larry (cams are so yesterday) - Cleveland

-------------- next part --------------
   Chinese carmaker [1]Qoros has joined [2]Koenigsegg in demonstrating
   a [3]camless engine. Rather than using a traditional camshaft to
   control an engine's valves, the QamFree motor uses
   electro-hydraulic-pneumatic actuators to provide precise control over
   each valve for more power and a 12 to 17 percent improvement in fuel
   economy.

   .

   .

   .

   .                                 [4]FreeValve's clever actuators

   In most engines the camshaft's rotating lobes push rockers that open
   the valves and allow valve springs to shut them. Unfortunately, this
   process involves a stage where the valves are partially open or shut,
   which means the system isn't always operating at ideal efficiency.

   Rather than continuing to use this technology, which Koenigsegg likens
   to "playing a piano with a both hands tied to the opposite ends of a
   broomstick," the QamFree engine allows far greater control over the
   engine's intake and exhaust valves thanks to
   electro-hydraulic-pneumatic actuators.

                   [5][cid:image002.jpg at 01D1F23D.B7EFD4D0]

   The engine has been developed in conjunction with FreeValve AB, one of
   Koenigsegg's sister companies. According to FreeValve, the technology
   reduces fuel consumption by 12 to 17 percent when compared to a modern,
   direct injection engine with variable cams.

   Qoros also says the QamFree engine allows the company to eke more power
   from a more compact package, which should mean punchy performance from
   engines that meet the ever-tightening Euro and Beijing emissions
   standards.

   Unfortunately, there's no mention of a release or production date for
   the engine, although Qoros does loosely suggest we might see it in
   future models. Currently, the engine remains a concept.

   Larry (cams are so yesterday) - Cleveland

References

   1. http://newatlas.com/qoros-2-plug-in-hybrid-suv/37162/
   2. http://newatlas.com/koenigsegg-regera-geneva/36376/
   3. http://newatlas.com/camless-combustion-engine-cargine-engineering/12200/
   4. http://newatlas.com/qoros-qamfree-camless-engine/43045/pictures?thumb=true#picture5
   5. http://newatlas.com/qoros-qamfree-camless-engine/43045/pictures?thumb=true#picture6
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