. Efficiency test of a four cylinder four cycle twenty horse power automobile gasoline engine. ave no corrosive action upon it. When the piston is on its suction stroke thepartial vacuum causes the disc C to open against thepressure of the spring J Ti»hich pressure is best regu-lated by trial when the engine is in operation. Themovement of the disc is also limited by the stem the disc is raised the gasoline port P in theside of the valve seat is uncovered and an amount ofgasoline is sprayed into the incoming volume of airrushing into the valve and is immediately vaporizedor gasified. HT
. Efficiency test of a four cylinder four cycle twenty horse power automobile gasoline engine. ave no corrosive action upon it. When the piston is on its suction stroke thepartial vacuum causes the disc C to open against thepressure of the spring J Ti»hich pressure is best regu-lated by trial when the engine is in operation. Themovement of the disc is also limited by the stem the disc is raised the gasoline port P in theside of the valve seat is uncovered and an amount ofgasoline is sprayed into the incoming volume of airrushing into the valve and is immediately vaporizedor gasified. HThen the suction is released the discreturns to its original position, and shuts off theflow of gasoline. The small needle valve K, that controls the flowof gasoline to the gasoline inlet P, has a long taperbearing and the stem threads are of fine pitchj thusvery close adjustment can be secured, and the amountof gasoline injected can be regulated to a nicety. ;sasf*s. ij iarV: o^ -aan^^ lo \ .il rtoqi/ r ? j£n!«3& aoqc *^t C oeffc stfi 3»3»«a axwo/v l£!J::| + I f - ..» -:^ i ^. 9. The wheel handle of the needle valve is engraved withnumbers to show the different degrees of opening, andit requires but little instruction to enable an inex-perienced operator to properly manipulate the valve. It will be noticed that the wheel handle of theneedle valve has a flat spot on its periphery whichthe spring N engages. The object of this is to en-able the operator, after the needle valve has beenproperly adjusted for the correct mixture, to at anytime easily obtain this same adjustment should theneedle valve be closed or open beyond the proper set-ting. No matter where this flat spot may be after theneedle valve has been set, the spring N can be broughtto bear on same, by merely loosening the lock nut 0,which will permit of the free turning of the spring. The lift of the disc can be easily regulated bymeans of the brass wheel at the top, which also regu-lates the speed of the engine.
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Keywords: ., bookcentury1900, bookdecade1900, bookidefficiencyte, bookyear1907
