Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 119
may happenthat the lap is reduced enough to leave the exhaust port open whenthe valve is in mid-position. The amount of this opening is calledinside clearance, or negative lap. This is illustrated at A, Fig. 19* 16 VALVE GEARS Rocker. Sometimes it happens that the valve stem and eccen-tric rod can… … Fig. 20. Valve with Rocker Arrangement Fig. 20 shows a valve that is not in line with the eccentric. Aninstance where this occurs is in horizontal engines when the valveis set on top of the cylinder instead of on one side. By means ofthe rocker A G, the valve may receive its proper motion. In case…
Indicators for steam-engines · Steam-engines
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