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EMD SW1 The EMD SW1 is a diesel-electric switcher locomotive built by General Motors' Electro-Motive Corporation (later Division) between December 1938 and November 1953. Final assembly was at EMD's plant at LaGrange (McCook) Illinois. The SW1 was the second generation of switcher from EMD, succeeding the SC (cast frame) and SW (welded frame). The most significant change from those earlier models was the use of an engine of EMD's own design, the then-new 567 engine, here in V6 form. 661 locomotives of this design were built, not withstanding diesel switcher production having been suspended between 1942 and 1945 by the War Production Board, as the 567 engines were needed elsewhere, mainly for U.S. Navy LST vessels. ==Engine and powertrain== The SW1 introduced a 6-cylinder version of the 567 (later 567A) series engine to EMC/EMD switchers. Developing at 800 rpm., this engine remained in production until 1966. Designed specifically for railroad locomotives, this was a supercharged 2 stroke 45 degree V type, with an , bore by stroke, giving displacement per cylinder. A D.C. generator provides power to four motors, two on each truck, in a B-B arrangement. The SW1, like most EMD switchers, use the AAR Type A switcher truck. EMC/ EMD has built all its own components since 1939.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「EMD SW1」の詳細全文を読む
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