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Author Topic: Engines With A Differnce  (Read 6088 times)

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Mr Skrunts

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Engines With A Differnce
« on: 24 September 2008, 10:30:13 »
Have been reading M_DTM's Engine Theory's with great interest. it started me thinking if the changes I have seen over the years on production cars,Carbs to fuel injection, diesel cars becoming an everyday thing (cant remember any diesel cars as I was drowing up, points/condensor to electronic ignition.

2 valves to 4 and even 5 valve heads, 5 cylinder, V5 and V10 engines.  Modded cars with engines bolted together, cars introducd with W Formation engines. Turbo's NOS etc etc

Then on Sky TV I see the old racing cars with the old straight eights, V12's then the Bentlys with the old blowers on.  Seen many cars with the magnetto ignition, then dual dizzys (Ferrari Daytona we had at work for example, V12, twin distributors and twin oil systems)

Front wheel drive, 4 wheel drive, the list goes on.

So having a nosey arround the net I found this.  Maybe not the only engine ever built with twin cranks but certainly the 1st I have ever seen.




« Last Edit: 24 September 2008, 10:33:14 by skruntie »
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Kevin Wood

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Re: Engines With A Differnce
« Reply #1 on: 24 September 2008, 10:47:54 »
Ahh, yes. BRM. Where Colin Chapman of Lotus' motto was "add lightness and simplicate" BRM's must have been "add cylinders and complicate".  ;D

Still, their V16 is probably the most soul-stirring engine I've ever heard, even though it was not reliable enough to win races.

There's not much new in engines. The concepts we consider "modern" today all date back to pre-war days. Twin cams heads with 4 valves per cylinder, forced induction, fuel injection, etc. all saw service really early on in applications that were less cost-sensitive than day to day cars, and have only filtered down has they have become cheaper to implement, and due to the need for good fuel consumption and emissions performance.

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Mr Skrunts

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Re: Engines With A Differnce
« Reply #2 on: 24 September 2008, 10:59:53 »
If we go by design, we have the square 4, or boxer engine. the 4 pot, , 5 pot inline six, V6, straight 8, V12, V5, V8, V16.  Then W12 and W16.

So up from the boxer, square 4 (that is if I am calling them correcly that is) or flat 4 as I could/will say, I maybe could assume there have been flat 6's, flat 8.s and maybe even flat 12's  Silly me (sleep deprevation (Porche = Flat 6)

But as the type 75 BRM is 2 flat 8's stacked, then what would it be classed as. if that is it does fall under anything other than the "Type 75" named by BRM
« Last Edit: 24 September 2008, 11:02:51 by skruntie »
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Kevin Wood

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Re: Engines With A Differnce
« Reply #3 on: 24 September 2008, 11:09:21 »
Quote
But as the type 75 BRM is 2 flat 8's stacked, then what would it be classed as. if that is it does fall under anything other than the "Type 75" named by BRM

It's a H16.

.. and to add to the confusion you mustn't forget this :

http://en.wikipedia.org/wiki/Napier_deltic

Appologies if it gets Martin Imber all excited.  ;D

Kevin
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Mr Skrunts

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Re: Engines With A Differnce
« Reply #4 on: 24 September 2008, 11:13:38 »
Makes total sence

Not read the link yet, line up the con ronrods and connect with the idler ger and I see the "H" Pattern.   :y :y
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Mr Skrunts

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Re: Engines With A Differnce
« Reply #5 on: 24 September 2008, 11:17:10 »
Just looked at the link, Thats interesting stuff, never even thought to find out any info on "The Delta"  layout.  Of to have a read through.

Did they ever build a small one for a car, Lizzie might fancy one for a Miggy transplant.    :y :y
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jereboam

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Re: Engines With A Differnce
« Reply #6 on: 24 September 2008, 11:18:59 »
Wot about the Wankel?

Sorry, should have said  "Vot about the Wankel?"
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Re: Engines With A Differnce
« Reply #7 on: 24 September 2008, 11:21:35 »
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Wot about the Wankel?

Sorry, should have said  "Vot about the Wankel?"

Ahh, good point. :y

Kevin
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Re: Engines With A Differnce
« Reply #8 on: 24 September 2008, 11:23:30 »
Ah yes.

First one I remember is the RO80
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Re: Engines With A Differnce
« Reply #9 on: 24 September 2008, 11:28:39 »
Quote
Ah yes.

First one I remember is the RO80

That's the only one I've ever heard of. :)
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Re: Engines With A Differnce
« Reply #10 on: 24 September 2008, 11:32:47 »
Mazda RX 6/7/8 :y
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The Red Baron

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Re: Engines With A Differnce
« Reply #11 on: 24 September 2008, 11:36:34 »
another interesting engine for you scruntie is the commer TS3 2 stroke diesel.  :y
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Marks DTM Calib

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Re: Engines With A Differnce
« Reply #12 on: 24 September 2008, 11:41:41 »
Dont forget the H24 Napier Sabre engine with sleeve vales of the 1940's:

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Re: Engines With A Differnce
« Reply #13 on: 24 September 2008, 11:51:02 »
Quote
Dont forget the H24 Napier Sabre engine with sleeve vales of the 1940's:


You can really see from that photo the advantage of H formation engines  in aircraft if you compare it with a radial - low frontal area!

Oh, we forgot radials:



The Pratt and Whitney R2800 double wasp.  :-*

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Re: Engines With A Differnce
« Reply #14 on: 24 September 2008, 11:56:45 »
Yep, trouble is that cranks are one of the heaviest single components in an engine.....and to have 2 of them with connecting gears!
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