Hugh,
The laws of thermodynamics are very complex, and I don't claim to
understand much of it.
You would have had a very interesting time discussing this subject
with Sadi Carnot (1796-1832), if you had both lived in the same
time period.
Sadi Carnot came up with most of his theories, when he was only 14
years old!
Fascinating stuff, and worth looking into if you are interested, but
definitely too complex for me, and most Triumph owners, I expect.
-- Flemming Larsen
> -----Original Message-----
> From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
> Behalf Of Hugh Fader
> Sent: Monday, April 29, 2002 20:51
> To: 6 Pack List (E-mail); Triumph Mailing List (E-mail)
> Cc: nelson@buckeyetriumphs.org
> Subject: Whay Exhaust Valve is Smaller
>
>
> Nelson and I were having a discussion off the list about valves. I said I
> would investigate why the exhaust valve is smaller than the intake. I
> discussed this with a colleague who is a powertrain engineer.
>
> There is a limited amount of space for the valves. You want to make the
> intake valve as large so more air and fuel can flow in.
>
> The exhaust valve opens with high pressure from combustion gasses
> behind it.
> Because of this gas can flow out of a given area at a higher rate, or the
> area can be smaller to get the same flow.
>
> Since the exhaust valve can be smaller, it is made smaller
> leaving room for
> a larger intake valve.
>
> Excuse me if this is common knowledge. Thought I'd share it anyway.
>
> - Hugh
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