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Koenigsegg Freevalve - camless engine
- Ducklakeview
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Koenigsegg Freevalve - camless engine
I think lotus have been playing around with camless engines for yonks, they had a running engine but I don't think it had a very high rpm range?
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- Nictrix
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Koenigsegg Freevalve - camless engine
Shame that you would need to rely on electronics to make sure the engine didnt go bang after the valves hit the pistons.
At least with a normal engine there needs to be a failure like a belt or chain snapping for damage to occur.
I think the best idea for an engine was an old Honda design with gear driven cams. I think Aprilia have also done this in recent years.
At least with a normal engine there needs to be a failure like a belt or chain snapping for damage to occur.
I think the best idea for an engine was an old Honda design with gear driven cams. I think Aprilia have also done this in recent years.
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- Ethicsgradient
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Koenigsegg Freevalve - camless engine
Nictrix wrote: ↑Mon Aug 07, 2017 7:16 pm Shame that you would need to rely on electronics to make sure the engine didnt go bang after the valves hit the pistons.
At least with a normal engine there needs to be a failure like a belt or chain snapping for damage to occur.
I think the best idea for an engine was an old Honda design with gear driven cams. I think Aprilia have also done this in recent years.
Ford 2.3 and 2.8 V6 Cologne engine was gear driven I think . Hondas 750 VFR engine was definatley gear driven , thats what the interesting whine noise they made was .
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Koenigsegg Freevalve - camless engine
They would have been quite a bit before the Honda engines then, Im sure the VFRs first had it in the mid 80s.Ethicsgradient wrote: ↑Tue Aug 08, 2017 8:08 pmNictrix wrote: ↑Mon Aug 07, 2017 7:16 pm Shame that you would need to rely on electronics to make sure the engine didnt go bang after the valves hit the pistons.
At least with a normal engine there needs to be a failure like a belt or chain snapping for damage to occur.
I think the best idea for an engine was an old Honda design with gear driven cams. I think Aprilia have also done this in recent years.
Ford 2.3 and 2.8 V6 Cologne engine was gear driven I think . Hondas 750 VFR engine was definatley gear driven , thats what the interesting whine noise they made was .
Aprilia put gear driven cams in their WSB bikes trying to bend the rules a little as they gave more power. They had to release a kit to change the normal engines to gear driven to stay withing the rules, even though probably nobody would buy the kit.
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Koenigsegg Freevalve - camless engine
The Ford cologne had a camshaft drive gear made from FIBRE, running in oil.. I kid you not! They used to just break into pieces...
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Koenigsegg Freevalve - camless engine
I remember when I worked in a garage in the 70's,we had a V6 ford in with a misfire and after a lot of digging it was found the outer part of the fibre gear was slipping backwards and forwards,leading us a merry dance.Ducklakeview wrote: ↑Tue Aug 08, 2017 8:52 pm The Ford cologne had a camshaft drive gear made from FIBRE, running in oil.. I kid you not! They used to just break into pieces...
TV1422.jpg
Mike
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Koenigsegg Freevalve - camless engine
Nictrix wrote: ↑Tue Aug 08, 2017 8:16 pmThey would have been quite a bit before the Honda engines then, Im sure the VFRs first had it in the mid 80s.Ethicsgradient wrote: ↑Tue Aug 08, 2017 8:08 pmNictrix wrote: ↑Mon Aug 07, 2017 7:16 pm Shame that you would need to rely on electronics to make sure the engine didnt go bang after the valves hit the pistons.
At least with a normal engine there needs to be a failure like a belt or chain snapping for damage to occur.
I think the best idea for an engine was an old Honda design with gear driven cams. I think Aprilia have also done this in recent years.
Ford 2.3 and 2.8 V6 Cologne engine was gear driven I think . Hondas 750 VFR engine was definatley gear driven , thats what the interesting whine noise they made was .
Aprilia put gear driven cams in their WSB bikes trying to bend the rules a little as they gave more power. They had to release a kit to change the normal engines to gear driven to stay withing the rules, even though probably nobody would buy the kit.
Nice bikes Aprillia , Had a SL1000 Falco some years ago , as a sport touring miles muncher it was great .
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Koenigsegg Freevalve - camless engine
I went for a look because it was a foggy memory of them , seems there was a conversion kit to make the gears not fiber and proper metalDucklakeview wrote: ↑Tue Aug 08, 2017 8:52 pm The Ford cologne had a camshaft drive gear made from FIBRE, running in oil.. I kid you not! They used to just break into pieces...
TV1422.jpg
Mike
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Koenigsegg Freevalve - camless engine
Cool tech, its about time we removed belts and stuff from the engine bays and with upwards of 50% increases to both torque and power its exciting stuff not to mention the lower profile of the engine (lowering the centre of gravity) and substantially lower weight!Freevalve wrote: What happens if there is a catastrophic failure on a Freevalve equipped engine compared to a camshaft equipped engine?
If the complete system fails, the engine will simply stop running with no damage to the engine, as compared to a camshaft equipped engine which will be badly damaged or destroyed if a belt or chain breaks.
...The engine will be able to provide limp-home capability even if 75% of the actuators were to fail.
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