Marine engines; problems, notes and sketches. Additional to the text-book used in the instruction of naval cadets of the second class, United States Naval Academy (1899)
United States Naval Academy. Dept. of Marine Engineering · Annapolis : Dept. of Steam Engineering, U. S. Naval Academy · leaf 79
ove, and place all the known quantities upon it. Then by means of the equation, pv = a constant, find the quantities notgiven and proceed as shown. Example. Stroke of the engine =. 42. Cut-ofif is at 9 from the begin-ning of the stroke. Clearance, reduced to equivalent length ofcylinder, is 4.… … Fig. 31. D= 15(42 —6) = 540.C = 4 (100 — 37.5)^=250. PROBLEMS, NOTES AND SKEICHES. - JJ Then, in B, since//^ — P\^\^ ;»;X4= loX 15. ••• ^ = 37-5- f , , /42 + 4 ] {A^ B + C+ D)^\ooY. ^2-\-A (42 + 4) 9 + 4= 100 X 46 X .642= 2953.2, ^ = 37-5 X ^ 6 + ^ ^ (6 + 4) 4 = 37-5 X 10 X .766 —…
Marine engines
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