3M Engines
Rcmaster199 at aol.com
Rcmaster199 at aol.com
Wed Apr 30 14:58:03 AKDT 2003
In a message dated 4/30/2003 4:35:03 PM Eastern Daylight Time,
wgalligan at cnbcom.net writes:
> Subj:Re: 3M Engines
> Date:4/30/2003 4:35:03 PM Eastern Daylight Time
> From:<A HREF="mailto:wgalligan at cnbcom.net">wgalligan at cnbcom.net</A>
> Reply-to:<A HREF="mailto:discussion at nsrca.org">discussion at nsrca.org</A>
> To:<A HREF="mailto:discussion at nsrca.orgdiscussion@nsrca.org">discussion at nsrca.orgdiscussion@nsrca.org</A>
> Sent from the Internet
>
>
>
> OK.. one more time on this.
>
> You cannot possibly get the mass of our engines centered, if you did you
> would have an engine like the Wankel or RCV. The mass of the cylinder head
> and header, piston, etc. does have influence on the impulses from the
> engines firing stroke. But all of our engines used today, OS, YS, Webrea,
> Mintor, ST and the likes are all basicly the same or near the same in size
> and mass give or take on ounce or two or mm or two. If your not rotating
> this mass in the same plane as the c/l of the mount(the crankshaft center)
> then you are defeating the purpose of a rotationaly dampened mount. So
> keep the engine mounting beams on the c/l of the mount. Merle has a
> design that is going to be hard to improve on. Perhaps something like a
> viscous fluid filled mount like we have in our cars scaled down. But then
> getting them light enough is an issue.
>
> Wayne
>
You don't need a viscous fluid for the small mass you are trying to dampen.
An air bladder would suffice. The weight gain for the valve will be minimal
Matt Kebabjian
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