Experimental and Analytical Determination of the Motion of Hydraulically Operated Valve Stems in Oil Engine Injection Systems (1930)
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Equation (10) becomes, on substituting numerical values: t = 0.00039 + —^ [sin"1 (78.6s- 10.1) - 1.65tt] (10a) w here t is in seconds and s in inches. Equation (10a) represents the time of motion of the timing valve stem in terms of compression of the spring. The lift of the stem S, is at all times… … Time, seconds The stem then returned to the Figure 9— Computed and actual motion of the timing valve stem with the 43-inch tube. Initial spring compression, 130 pounds. Injection pressure, 8,000 lb./sq. in. Initial position at which the hydraulic pressure in the injection valve tube, 1,000 lb./sq.…
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