Diesel Direct Pump Drive on Hydraulic No. 3 One Engine— 500 B. H. P. Engine Name of Engine—De La Vergne; Year—1927 Builder—De La Vergne Machine Co.; Cycle—4 No. Cylinders—8; B. H. P.—500; I. H. P.—595 Action—Single; Injection—Solid; Piston Clg.—No Scavenging—No; Bore—14% in.; Stroke—18 in. R. P. M.—275; Piston Speed—831 ft. p. m. Pressure Indicated—72; Pressure Brake—60.5 B. H. P. per Cyl.—62%; I. H. P. per Cyl.—74% Mechanical Efficiency —84%; Stroke to Bore—1.24 Working Strokes per Revolution—4 Length—Including Dredge Pump—29 ft. 9% in. Height O. A.—8 ft. 4% in.; Width O. A.—56 in. Weight—One engine 75,800 lbs.; Lbs. per b. h. p. one engine, 151; Lbs per i. h. p. one engine, 127 DESCRIPTION In this dredge a 500- horsepower engine is connected through a flexible coupling to a 15-inch Morris dredge pump designed to de- liver 195 cubic yards of solids through a_ 15- inch line 2400 feet long against a maximum static head of 40 feet. The governor is equipped with hand throttle for speed vari- ation. The engine is of the four cycle, solid injection, marine diesel type of rugged and simple construction. Reversing—No; Air Comp.—One, motor drive Vessel Name—Hydraulic No. 3; Type—Dredge Main Drive—Not self-propelled; Power for pumps Length B. P.—108 ft.; Beam—26 ft; Draft—4% ft. Fuel Capacity—762 bbls.; Fuel Consumption—Lbs ~ per b. h. p. per hr., 0.45; per i. h .p., 0.383 Generator—One, Westinghouse, 130 k. w. driven by one 200 h. p. De La Vergne diesel at PA A aes Ra a Bhar 118 This dredge was designed by the engineering department, Division of Canals, the State of New York, at Syracuse, New York, and operates on the Barge canal with the canal terminal at Syracuse as headquarters. Some of the Standard Sizes of Engines Built R. P. M. Cycle 277 225 225 180 180 No. Cyls. L. O. A. Height Width feet inches feet inches feet inches Weight 18 56,000 21 : 103,900 30 j 153,900 27 188,900 38 283,600 Dredge HyprAULIC No. 3—Equipped with 500 H. P. diesel dir ect pump drive—Also 200 H. P. diesel generating MARINE REVIEW—November, 1927 21 | |