Today's Message Index:
----------------------
1. 06:47 AM - Re: Lycoming Cylinder question (Jon A. Delamarter)
2. 06:51 AM - Re: New Lycoming Website (Jon A. Delamarter)
3. 07:13 AM - Re: Re: Lycoming Cylinder question (Kelly McMullen)
4. 07:51 AM - Re: Lycoming Cylinder question (Jon A. Delamarter)
5. 12:18 PM - Re: Re: Lycoming Cylinder question (Dan Rogers)
6. 01:30 PM - Re: Lycoming Cylinder question (Jon A. Delamarter)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lycoming Cylinder question |
Dan:
Here's a brief overview I wrote for the new Lycoming website. Let me know if I
can help with more details.
Parallel Valve Cylinder The intake and exhaust valves of a parallel valve cylinder
are mounted in parallel to one another in the cylinder head and share a common
rocker shaft which is retained by the rocker cover. This arrangement gives
the parallel valve cylinders rocker cover its distinctive parallel or square
shape; parallel valve rocker covers are also distinguished from angle valve
rocker covers by their greater thickness. Parallel valve cylinders are utilized
on carbureted and some lower output, lightweight fuel injected engines. Most
parallel valve 4 cylinder engines do not incorporate a counterweighted crankshaft
which further contributes to their relative lightweight.
Angle Valve Cylinder The intake and exhaust valves of an angle valve cylinder
are mounted at angles to one another in the cylinder head. Angle valve cylinders
utilize separate rocker shafts for intake and exhaust rockers; the rocker
shafts are held in the cylinder head by separate retaining plates. This arrangement
gives the angle valve cylinders rocker cover its distinctive angle shape;
angle valve rocker covers are also distinguished from parallel valve rocker
covers by their lesser thickness. Utilized on high output engines. Angle valve
engines are heavier and slightly wider than their parallel valve counterparts
but are capable of safely and efficiently producing more horsepower due to
increased head density and improved head design. Angle valve engines incorporate
counterweighted crankshafts which reduce torsional vibration.
--------
Jon A. Delamarter
Thunderbolt Manager
Lycoming Engines
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=102066#102066
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: New Lycoming Website |
That is the intent.
> [quote="Float Flyr"]About time!!!!!
>
> Thanks. I'll be watching! What I'd like to see is a control by wire piston
> engine. One control for everything.
>
> Noel
>
>
>
>
> > --
>
--------
Jon A. Delamarter
Thunderbolt Manager
Lycoming Engines
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=102067#102067
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lycoming Cylinder question |
That last sentence needs a bit of qualification. A large number of
angle valve engines do NOT have counterweighted crankshafts. In
particular, the IO-360-A1A, used extensively from 1964-1976.
On 3/21/07, Jon A. Delamarter <jdelamarter@lycoming.textron.com> wrote:
Angle valve engines incorporate counterweighted crankshafts which
reduce torsional vibration.
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lycoming Cylinder question |
Touche'!
You are absolutely correct. See what over-generalization gets me? I should
have said "most" angle valve engines incorporate counter-weighted crankshafts.
Hmm, I see I already have to edit my new website.
Thanks for keeping me straight!
>
> apilot2(at)gmail.com wrote:
> > That last sentence needs a bit of qualification. A large number of
> > angle valve engines do NOT have counterweighted crankshafts. In
> > particular, the IO-360-A1A, used extensively from 1964-1976.
> >
> > On 3/21/07, Jon A. Delamarter wrote:
> > Angle valve engines incorporate counterweighted crankshafts which
> > reduce torsional vibration.
> >
> > >
> > >
> > >
> >
>
--------
Jon A. Delamarter
Thunderbolt Manager
Lycoming Engines
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=102079#102079
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lycoming Cylinder question |
Is this already on the Lycoming website?? If so I didn't find it when I
went looking for this info!
Dan R
Jon A. Delamarter wrote:
>
> Dan:
>
> Here's a brief overview I wrote for the new Lycoming website. Let me know if
I can help with more details.
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Lycoming Cylinder question |
Dan:
Yes it is, but you're not going to see it unless you go through the engine configurator on the Thunderbolt microsite. www.lycoming.com/thunderbolt If you go through and configure a Thunderbolt engine, there is an option on the final page to view a printable version of the estimate. The bottom of the estimate has a ton of data. The info I posted is only a small portion.
You always have the option of emailing me directly at jdelamarter@lycoming.textron.com.
I don't have all the answers, but I work with the folks that have most
of them!
Kind regards,
> [quote="drogers(at)maf.org"]Is this already on the Lycoming website?? If so
I didn't find it when I
> went looking for this info!
--------
Jon A. Delamarter
Thunderbolt Manager
Lycoming Engines
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=102167#102167
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|