File:Electric railway journal (1913) (14781668023).jpg

Identifier: electricrailway421913newy (find matches)
Title: Electric railway journal
Year: 1908 (1900s)
Authors:
Subjects: Electric railroads
Publisher: (New York) McGraw Hill Pub. Co
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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. All ofthese are driven off the connecting rods of two of the maincylinders by means of links and rockers. The three-stageair pump acts as a reserve for the auxiliary compressorset, and if the latter should fail, the engine air pump cansupply sufficient air, provided the demand on the locomo-tive is not too great. The engine of the auxiliary compressor set is of the two-cycle Diesel type developing about 250 effective hp. Whenthe locomotive is standing, or when only a little air isneeded by the main engine, the auxiliary compressor sup-plies a battery of air cylinders. From the auxiliary com-pressor the air is passed through coolers. From the coolerfor the high-pressure air the air can be conveyed to thecylinders for starting, stored for injection purposes orstored in an auxiliary air reservoir for starting up theauxiliary compressor set. The injection-air reservoir alsocommunicates with the auxiliary compressor set, for whichit supplies injection air. In addition to the compressors,
Text Appearing After Image:
General View of Diesel Locomotive for Prussian-Hessian State Railways or one-fifth the power of the main engines. The com-pressor furnishes air for starting the main engines. The locomotive illustrated is designed for fast traffic. Ithas a length over all of 54 ft. 6 in. and a weight of 95 tons.The driving-wheel base is 12 ft. The end trucks each havea wheelbase of 7 ft. 3 in. and they are 34 ft. 6 in. apart,center to center. The driving wheels are 68.8 in. in diam-eter on the tread. The driving axles have a diameter of7.9 in., increased to 8.3 in. at the journals, which have alength of 10.2 in. The drive from the engine is trans-mitted to the wheels through coupling rods, from outsidedisk cranks on the end of the engine crank shaft. The main engines are of the reversible two-cycle type,single-acting. There are two pairs of cylinders, inclined at90 deg. to each other. Facing cylinders drive on to a com-mon crank pin, with forked connecting rods. The twocranks are set 180 deg. apart. W

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