BMWs Three Cylinder Engine
- Thread starter 2wheels
- Start date
monsterman
Senior Member
- Joined
- Jan 13, 2011
Interesting concept, expensive to make though with 3 separate cylinders.
of course its not the first 3 BMW have made for Mc old K series 750 was an in line 3
of course its not the first 3 BMW have made for Mc old K series 750 was an in line 3
Thump
Senior Member
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- Aug 14, 2013
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- Nakhon Si, Thailand
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- '14 CBR500R; '13 CRF250M; '14 MXS125; '09 Nouvo 135
Is it April 1 already?!
"The huge difference between these designs and BMW's patented W3 is that BMW's design doesn't put all three cylinders onto a single crank pin."
Why would anyone put three cylinders on one crank pin? Maybe HD would but definitely not BMW!
"Splaying the cylinders will allow the engine to be significantly narrower than a inline-triple design."
Just by looking at the drawing you can see that an inline triple would be narrower than that W configuration.
"While other W3 designs tend to have a 90º angle between the front and rear cylinders, it makes packaging it into a motorcycle tricky. The BMW design appears to be around 60º."
Looks to me that the patent drawing shows more than 90 degrees between front and rear cylinders.
"The huge difference between these designs and BMW's patented W3 is that BMW's design doesn't put all three cylinders onto a single crank pin."
Why would anyone put three cylinders on one crank pin? Maybe HD would but definitely not BMW!
"Splaying the cylinders will allow the engine to be significantly narrower than a inline-triple design."
Just by looking at the drawing you can see that an inline triple would be narrower than that W configuration.
"While other W3 designs tend to have a 90º angle between the front and rear cylinders, it makes packaging it into a motorcycle tricky. The BMW design appears to be around 60º."
Looks to me that the patent drawing shows more than 90 degrees between front and rear cylinders.