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In 1913, GE combined an internal combustion engine with electric traction motors in the GE 57-ton gas-electric boxcab. Impetus for wider adoption of this technology was provided by improved control systems introduced around 1920 and the State of New York's 1926 Kaufman Act , which banned the use of steam locomotives within the New York ...
The prototype of these locomotives was New York Central 1525 delivered in February 1928. This locomotive had a center-cab design. After successful testing a series of 40 locomotives [1] with boxcab carbodies were built along with the line of the ALCO boxcabs by a consortium of ALCO, General Electric, Ingersoll Rand and Electric Storage Battery.
A 2-unit boxcab electric locomotive of the Milwaukee Road Preserved Alco boxcab at the North Alabama Railroad Museum Preserved Victorian Railways (Australia) E class boxcab loco. A boxcab, in railroad terminology, is a term for an electric locomotive in which the machinery and crew areas were enclosed in a box-like superstructure.
The Holt gas–electric tank was the first prototype tank built in the United States [1] in a collaboration between the Holt Manufacturing Company (now Caterpillar Inc.) and the General Electric Company. The tank, built during 1917–1918, was the only one of its kind built, as testing proved it lacked the agility and maneuverability required. [2]
Combined diesel–electric and gas (CODLAG) is a modification of the combined diesel and gas propulsion system for ships. A variant, called the combined diesel–electric or gas ( CODLOG ) system, contains the same basic elements but will not allow simultaneous use of the alternative drive sources.
Both are connected to the shaft with clutches; only one system is driving the ship, in contrast to combined diesel and gas (CODAG) systems that can use the combined power output of both. [1] The advantage of CODOG is a simpler gearing compared to CODAG, but it needs either more powerful or additional gas turbines to achieve the same maximum ...
Some ships even have three different gear ratios for the diesel engines — one each for single-diesel and double-diesel cruises, and the third when the gas turbine is engaged. Such a propulsion system has a smaller footprint than a diesel-only power plant with the same maximal power output, since smaller engines can be used and the gas turbine ...
The CODLAD propulsion system is based on the use of electric motors directly connected to the axes (generally two) of the propellers. The electric motors are powered by diesel generators and to have higher speeds, as happens in CODAD propulsion systems, the higher power diesel engine is inserted which is disconnected from the transmission system to return to cruising speed.