Joy’s Valve Gear Simulation

A simulation of Joy’s Valve Gear, using dimensions from a model by H. Muncaster, The Model Engineer and Electrician, March 9 1905 p223.

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Valve Gear Lever offset

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Valve travel:

Valve Parameters

Valve Rod length:
Valve length:
Valve recess:

Linkage Parameters

Links Overlap:
Slide Arc Radius:
Frobnicator :

Model parameters