Mechanisms — cutoff

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Single D Slide Valve diagram
Single D Slide Valve Mechanism: How It Works, Parts, Lap and Lead Diagram

Posted by Robbie Dickson on

See how a D-slide valve alternates admission and exhaust through three passages. Compare selected eccentric radius, throw and opening-span dimensions.
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Locomotive Link-motion Valve Gear diagram
Stephenson Link Motion: Expansion Link and Die Block Explained

Posted by Robbie Dickson on

Explore Stephenson link motion, including two eccentric rods, an expansion link and die block. Compare a separate ideal blend of opposite motions.
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