. American engineer . fiocf Long \. ^-xy / f?oci Short Fig. 5—Adjustment of Eccentric Rod. of the valve and parts. It shows the long port opening and thefree exhaust obtaining at full gear. Diagram No. 2, Fig. 3, showsthe valve ellipse for full gear plotted from the kinematic dia-gram. There are tliree points to be noted. (1) That the portis fully opened when the piston has traveled 14 per cent, of itsstroke and that this occurs so rapidly that the effect of pre-admission due to the ;4 inch lead is practically eliminated. (2)That there is a dwell of about 35 per cent, on the full port open- in
. American engineer . fiocf Long \. ^-xy / f?oci Short Fig. 5—Adjustment of Eccentric Rod. of the valve and parts. It shows the long port opening and thefree exhaust obtaining at full gear. Diagram No. 2, Fig. 3, showsthe valve ellipse for full gear plotted from the kinematic dia-gram. There are tliree points to be noted. (1) That the portis fully opened when the piston has traveled 14 per cent, of itsstroke and that this occurs so rapidly that the effect of pre-admission due to the ;4 inch lead is practically eliminated. (2)That there is a dwell of about 35 per cent, on the full port open- in. the union linkObtain bination lever. If tl:e difference is over ;^should be adjusted. (2) Connect up the valve gear and both main rods,the dead centers as usual. (3) To Place the Eccentric Crank in Its Profer Relation tothe Main Crank,—The reverse lever can be at any position dur-ing this adjustment. Catch either dead center and from a poinfnear the front end of the eccentric rod make a tram mark on
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
