Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 112
ve will have a position as shownin Fig. 12, the port being open the distance A B, the lead of the valve.This causes the eccentric to be moved forward a slight amount inexcess of the lap angle. This excess is called the angle of lead. In Fig. 13, O2R2 represents the position of the crank at the… … Fig. 12. Position of Valve Showing Lead 10 VALVE GEARS high-speed engines, a liberal lead is essential in order that the portsand clearance space may be well filled with steam before the strokebegins. If there is no lead, a portion of the steam will be used in filling these places and full…
Indicators for steam-engines · Steam-engines
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