. Farm machinery and farm motors. amount of mixture drawn in for an ex-plosion remains at all times a constant, and the govern-ing is accomplished by cutting out all admissions whilethe engine is running faster than normal speed. Thismethod of governing is usually accomplished by holdingthe exhaust valve open and the inlet valve closed untilthe engine falls a trifle below speed, when the exhaustvalve closes and new charges are taken into the 297 shows the manner in which this style of govern-ing is accomplished. When the speed of the engine isabove normal the governor sleeve C, w
. Farm machinery and farm motors. amount of mixture drawn in for an ex-plosion remains at all times a constant, and the govern-ing is accomplished by cutting out all admissions whilethe engine is running faster than normal speed. Thismethod of governing is usually accomplished by holdingthe exhaust valve open and the inlet valve closed untilthe engine falls a trifle below speed, when the exhaustvalve closes and new charges are taken into the 297 shows the manner in which this style of govern-ing is accomplished. When the speed of the engine isabove normal the governor sleeve C, which is in thecrank shaft, is drawn out, and, acting on the detent rollerD, throws the detent lever E down so it becomes en-gaged in the hook-up stop F. The hook-up stop F, beingconnected to the exhaust valve rod H, holds the exhaustvalve open. By reference to Fig. 298 it will be seen how GAS, OIL AND ALCOHOL ENGINES 413 the inlet valve is held closed. There are three generalmethods of using weights to accomplish hit-or-miss gov-. FIG. 297—MECHANISM KOK HIT-OK-MISS GOVERNOR erning as explained above. They are: By having weightsin the flywheels (Fig. 299) ; by having weights in a spe-cial shaft (Fig. 300) ; and by means of an inertia weight
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