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TOPIC: Atkinson cycle engines

Atkinson cycle engines 4 weeks 1 day ago #473257

  • Dustydog
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Has anyone towed with these petrol engines?
They seem to be used mainly by Japanese and Korean manufacturers in hybrid vehicles. Looking at the animations there seem to be a lot of “big end “bearings.
Sir Dustydog (BAR) TS .Woosie Round Table
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Atkinson cycle engines 4 weeks 1 day ago #473268

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That's news to me DD, very interesting and enlightening, good post old chap.
:)
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Atkinson cycle engines 4 weeks 1 day ago #473269

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Why should they use a name like Atkinson Bamber bridge born and bred,
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Atkinson cycle engines 4 weeks 1 day ago #473270

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It is not quite as complex as the Bristol Centarus, 18 cylinder Two row, sleeve valve engine I had a happy six months on. . :P
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Atkinson cycle engines 4 weeks 1 day ago #473276

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EH52ARH wrote:
It is not quite as complex as the Bristol Centarus, 18 cylinder Two row, sleeve valve engine I had a happy six months on. . :P

Or the Deltic…
:lol:
Larry from N. Essex

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Atkinson cycle engines 4 weeks 1 day ago #473277

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Guzzilazz wrote:
EH52ARH wrote:
It is not quite as complex as the Bristol Centarus, 18 cylinder Two row, sleeve valve engine I had a happy six months on. . :P

Or the Deltic…
:lol:

My first job after completing an Application Course was to manage the Turbine and ICE shops in Devonport. We had a steady stream of Deltics, Paxman Ventura and Valenta plus ASR1 to overhaul. Most of them were problematic in one way or another.

Then when I returned to the Naval College the dear Stirling engine was thought to be the answer to the submariners dream of silent running.
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Atkinson cycle engines 4 weeks 1 day ago #473288

  • ProfJohnL
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otherclive wrote:
My first job after completing an Application Course was to manage the Turbine and ICE shops in Devonport. We had a steady stream of Deltics, Paxman Ventura and Valenta plus ASR1 to overhaul. Most of them were problematic in one way or another.

Then when I returned to the Naval College the dear Stirling engine was thought to be the answer to the submariners dream of silent running.

Nice simple external combustion engine, very quiet, but hopelessly inefficient, and difficult to scale up from small models to produce practical output powers. Various attempts to improve them including pressurising the internal volume, but I don't know of anything bigger than about 40HP, .

The victorians had a good use for them,

www.google.com/url?sa=i&source=images&cd...ust=1566683660806625
they made dtove top versions to drive a a fan to circulate warm air around a room. Modern equivalents use a peltier thermo electric chip powering an electric motor.
Unless I use quotes, All advice and opinions given are my own and are given in good faith. Never act on anything you read on a forum unless you can validate and verify its source and content.
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Atkinson cycle engines 4 weeks 20 hours ago #473294

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ProfJohnL wrote:
otherclive wrote:
My first job after completing an Application Course was to manage the Turbine and ICE shops in Devonport. We had a steady stream of Deltics, Paxman Ventura and Valenta plus ASR1 to overhaul. Most of them were problematic in one way or another.

Then when I returned to the Naval College the dear Stirling engine was thought to be the answer to the submariners dream of silent running.

Nice simple external combustion engine, very quiet, but hopelessly inefficient, and difficult to scale up from small models to produce practical output powers. Various attempts to improve them including pressurising the internal volume, but I don't know of anything bigger than about 40HP, .

The victorians had a good use for them,

www.google.com/url?sa=i&source=images&cd...ust=1566683660806625
they made dtove top versions to drive a a fan to circulate warm air around a room. Modern equivalents use a peltier thermo electric chip powering an electric motor.

Thanks Prof. The Swedish Gotland class have a 75kw Stirling powering a generator. They’ve been developing them since the early 1980s. Horse for courses I guess.
Skoda Superb Estate 2.0 TDi SE CR 170ps DSG 4x4 carrying two Springers, Sprite Musketeer TD 2013.
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Atkinson cycle engines 4 weeks 20 hours ago #473295

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For anyone more interested the link gives a good explanation of Atkinson engines. But even these are now “ hybrid” with the introduction of VVT.

everything.explained.today/Atkinson_cycle/
Skoda Superb Estate 2.0 TDi SE CR 170ps DSG 4x4 carrying two Springers, Sprite Musketeer TD 2013.
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