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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 54

An illustration from 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, leaf 54
a circle passingthrough the three points A^,0, and L. This will be thevalve circle and its diame-ter = the half travel of thevalve. Problem V.—Given cut-off, release, compression,and width of port. The ziidth of port is taken as equivalent to the maximumopening of exhaust port. Draw a circle of… … Travel of valve WY given width of port XY From this the travel of the valve is obtained and the diagrammay be constructed. If the lead is given instead of the width ofport: through P draw a line parallel to AB and from C let fall aperpendicular CE upon it. Then Travel of valve WYgiven lead CE 52…

Marine engines

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