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Author Topic: No gears, camshaft, cams or push rods  (Read 2238 times)

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trojan

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No gears, camshaft, cams or push rods
« on: June 24, 2009, 10:36:24 PM »
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artie on edge

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Re: No gears, camshaft, cams or push rods
« Reply #1 on: June 24, 2009, 11:12:46 PM »
I really can see this being the way of the future. No friction losses due to valve train drag and infinitely variable valve specs, not just timing as is the case now.

Good one.  ;)
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Offline BDKW1

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Re: No gears, camshaft, cams or push rods
« Reply #2 on: June 24, 2009, 11:36:21 PM »
Dead end technology for the time being. The little airplane motors take 15 amps per valve to work at the speeds they need to achieve 8400RPM. Where are you going to get 30 amps on a model plane for any length of time? Now scale that up to full size and it gets really scary. You would need some serious linear motors to make a 2.02 valve hop around a 6500rpm.
 
You want something the frees up power, spherical valves.
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SPEC

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Re: No gears, camshaft, cams or push rods
« Reply #3 on: June 25, 2009, 04:51:19 AM »
That certainly is neat,
But I think it has a way to go before it's feasable
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Offline fabr

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Re: No gears, camshaft, cams or push rods
« Reply #4 on: June 25, 2009, 08:34:43 AM »
Did not F-1  use that technology at some point?
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trojan

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Re: No gears, camshaft, cams or push rods
« Reply #5 on: June 25, 2009, 09:33:07 AM »
Are you mistaking it with pneumatic valves? same thing but using air.
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Offline BDKW1

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Re: No gears, camshaft, cams or push rods
« Reply #6 on: June 25, 2009, 10:28:44 AM »
F1 cars still use pneumatic valve springs. They are actuated by regular cams though. Aprillia and some other company also has them in WSB.
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Offline fabr

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Re: No gears, camshaft, cams or push rods
« Reply #7 on: June 25, 2009, 11:07:20 AM »
I thought that I had read that they were working on electric stuff.Maybe I was wrong. It was a few years ago. I thought they were saying that the pnuematic stuff was having issues.Things have likely changed a lot since I read whatever it was.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

urubu

  • Guest
Re: No gears, camshaft, cams or push rods
« Reply #8 on: June 25, 2009, 05:59:15 PM »
I heard that the solenoid actuated valves were coming on the large diesels in the over the road trucks.
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