Bristol Hercules sleeve valve radial animation

an animation based on the Bristol engine designed prior to WW2. The four cycle engine used moving sleeves between the piston and cylinder instead of valves. Animation done in Solidworks 2008.

The geometry isn't accurate, Neither is some of the timing I'm sure... but its just a basic layout.

Category:

Autos & Vehicles

Tags:

• bristol
• hercules
• solidworks
• sleeve
• valve
• radial
• aircraft
• engine

[polaritDK]

well - it DID fly, powered one famous ww2 bomber

oh btw - another sleve valve engine was installet in certain versions of the typhoon &t empest, almost the only aircraft of the time to catch up to the V1doodlebug.

i guess you must be wrong about the rate of wear :-P

[YoungJim409]

I've read about this many times, but it was much easier to understand in pictures like this. Thank you for making this.

[R44ChopperII]

It has a better volumetric efficiency than a poppet valved engine so that's why it made more power than the P&W with a much smaller displacement. The Mk2 Tempest would be my aircraft of choice, I just need to sort the funding.

[pjwsnooty]

At last! I fully understand. Thankyou for making this video.

[TheCannonofMohammed]

Thanks for the video! I've been wondering how these things work for years!

[mpetersen6]

While the sleeve valve engine with its usually lower fuel consumption made sense for transport patrol aircraft I have always wondered if they were worth from the cost side of it for combat aircraft. Face most combat aircraft and engines are not going to be things with a lot of hours on them. And given the amount of precision machining, grinding and honing that go into the cylinders and sleeves them selves much less the amount of gears I'd go for a P&W R4360

[NearAbbeyRoad]

The engine is still used today after over 70 years. It powered a whole range of planes. Complex, but compact and "quiet"

[Cursorkeys]

And I thought the Deltic diesel design was the most ridiculous engine...seriously though this is a very clever arrangement. Sounds quite unique too.

Thanks for making such a great animation!

[BlackWiiOwner2010]

That is a cool animation!!

[Dokker62]

Many thanks for showing! I always wondered about the detailed design of the fabulous Bristol radials. Couldn´t imagine how the sleeve drive works exactly. Brilliant animation.

[seelder]

AMAZING