Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . Figure 151 reducing valve C is operated automatically by thepressure in the receiver. To this end the port E isprovided, communicating with the receiver, and thespace in front of the reducing valve; as the pressurerises the steam acts on the large end of the reducingvalve, causing it to move backward and close thepzssage H, through which steam enters the receiver,and thus prevent an excess pressure of steam in thelow-pressure cylinder.
Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . Figure 151 reducing valve C is operated automatically by thepressure in the receiver. To this end the port E isprovided, communicating with the receiver, and thespace in front of the reducing valve; as the pressurerises the steam acts on the large end of the reducingvalve, causing it to move backward and close thepzssage H, through which steam enters the receiver,and thus prevent an excess pressure of steam in thelow-pressure cylinder. 3iO LOCOMOTIVE ENGINEERING Poppet valves F and G are placed in connection withport E, one to prevent the escape of steam from thereceiver to pipe D when the locomotive is workingsingle expansion, and the other to close the passagefrom pipe D to the receiver when working the lever of the operating valve in the cab isin the position marked simple/ In this position nosteam is allowed to enter the pipes D, and no pressure Section WZ Figure 152 will be exerted on the intercepting and reducing valves in opposition to the springs, and they will assume the positions shown in Fig. 148. The ports of the intercepting valve A stand open to receive the exhaust steam from the high pressure cylinder, and deliver it through the exhaust passage Bto the atmosphere. The reducing valve is open, admitting live steam through passage H to the receiver, and from thence to the low-pressure cylinder. COMPOUND LOCOMOTIVES 317 The receiver pressure is governed by the automaticaction of the reducing valve, as previously this way the engine can be used single expansion inmaking up and starting trains, for switching and slov;running. At the will of the engineer the operating valve inthe cab is moved to the position marked admits steam to the pipes D, and through themto the valve chambers W and C1, changing the inter-cepting knd reducing valves instantly and n
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlocomot, bookyear1916
