. The Street railway journal . nRailway which has attracted especial attention from theengineering public and users of power is the fact that themotive power of the road is furnished by gas-engine-drivenelectric generating units of a size heretofore unknown tothe traction interests of this country. The main power plant is at Port Washington, on theharbor front, where the handling of coal, unloaded directlyfrom Lake Michigan steamers at the companys docks, isvery economical and convenient. Two buildings comprisethe power plant proper, one for the producers and one for 1104 STREET RAILWAY JOURNA
. The Street railway journal . nRailway which has attracted especial attention from theengineering public and users of power is the fact that themotive power of the road is furnished by gas-engine-drivenelectric generating units of a size heretofore unknown tothe traction interests of this country. The main power plant is at Port Washington, on theharbor front, where the handling of coal, unloaded directlyfrom Lake Michigan steamers at the companys docks, isvery economical and convenient. Two buildings comprisethe power plant proper, one for the producers and one for 1104 STREET RAILWAY JOURNAL. [Vol. XXX. No. 23. the engines, generators, switchboards and protective appa-ratus. Both structures are of concrete, steel and brickconstruction and placed approximately 50 ft. apart. Thegas-supply main is run outside of and along the entirelength of the power house from the producer plant. GAS ENGINE GENERATING UNITSThe generating units are three in number, each of 1000kw capacity, two of which are now installed; the third. VIADUCT OVER THE CHICAGO, MILWAUKEE & ST. PAUL RAILWAY will be set up shortly. Each unit consists of a twin tandemhorizontal double-acting Allis-Chalmers gas engine directconnected to a 405-volt, 25-cycle, Allis-Chalmers the rating of each unit is given as 1000 kilowatts,both engine and generator were designed with large over-load capacities, the engine being capable of developing up-ward of 2000 horse-power and the generator having acorresponding capacity. Each engine has four cylinders, gas is thoroughly effected before entering the cylinder byan annular mixing chamber located under the main inletbonnet; the design and operation of this device are suchthat, at the instant of closing of the main inlet valve, thereis practically no explosive mixture left outside the gas valve is of the double-beat poppet type controlledby a variable lift rolling lever operated by a single linkconnection to the main inlet gear, the lift of
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
