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Two stroke Thursday (on Friday)

Meet the Trojan 15 cwt van.

Illustration for article titled Two stroke Thursday (on Friday)
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Cute-ish isn’t it?

Even better is that it’s powered by something weird. A four cylinder two stroke six. You what?

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A four cylinder six with two spark plugs. Like this:

Illustration for article titled Two stroke Thursday (on Friday)

On the left (of the left hand diagram) we find two pistons sharing a combustion chamber and plug and moving slightly out of phase. At about 90 deg to these we see another cylinder which acts as a blower for the the other two. The blower piston pushes air across a tube which ends up in the side of one of the power cylinders which then compresses and ignites the mixture and exhausts it from its neighbouring cylinder.

Like I said, weird.

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