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I supported Toymods
Location:
Brisbane, QLD
Registered:
May 2002
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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Thu, 14 November 2002 15:04
 
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Someone mentioned truly variable valve lift and desmodromic valves. To my understanding, this valve actuation system was developed in the early 20th century to address issues related to high RPM operation. As opposed to using one camshaft lobe and valve spring, where the valve openning is powered by the camlobe whike the valve closing is powered by the valve spring, the desmodromic valve system uses two cam lobes and two rocker arms where one lobe powers the valve opening and the other, the closing totally eliminating the need for valve springs. In a nutshell, desmodromic valve systems address a lot of issues that are related to valve springs, specially in high RPM operation. My question is, how is the continuosly variable valve lift achieved? it'd be really interesting to see how that is done as the system is mechanically more complex than the standard valve spring approach.
Cheers
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mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Wed, 13 November 2002 01:46 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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RA28 | Wed, 13 November 2002 02:38 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Wed, 13 November 2002 02:51 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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mrshin | Wed, 13 November 2002 04:12 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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Norbie | Wed, 13 November 2002 05:03 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Wed, 13 November 2002 05:17 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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GIN51E | Wed, 13 November 2002 07:09 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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humble | Wed, 13 November 2002 10:07 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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EVOSTi | Wed, 13 November 2002 10:45 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Wed, 13 November 2002 12:32 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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humble | Wed, 13 November 2002 18:40 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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GIN51E | Wed, 13 November 2002 23:13 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Thu, 14 November 2002 00:47 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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humble | Thu, 14 November 2002 01:01 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Thu, 14 November 2002 01:34 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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Hack | Thu, 14 November 2002 02:37 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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RA28 | Thu, 14 November 2002 14:19 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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humble | Thu, 14 November 2002 15:04 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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M.W.P. | Thu, 14 November 2002 16:49 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Thu, 14 November 2002 22:49 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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humble | Fri, 15 November 2002 01:35 |
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Re: mad scientist seeks sensible people to tell him not to try this idea.
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froodogs | Fri, 15 November 2002 03:53 |
