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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.
The reciprocating marine diesel engine first came into use in 1903 when the diesel electric rivertanker Vandal was put into service by Branobel. Diesel engines soon offered greater efficiency than the steam turbine, but for many years had an inferior power-to-space ratio.
The GE 7FDM, also known as the GE V228, is a series of marine engines from GE Transportation Systems for propulsion and electric generator usage. Engine model numbers for the 7FDM series of engines take the form of 7FDMXXZYY, where XX is the number of cylinders, Z is the engine series, and YY is an additional differentiator between engines.
A diesel-electric system is an integrated electric propulsion system in which no gas turbines are used and all of the engines are diesel. A turbine-electric system is also possible using gas turbine generators. Some yachts use only gas turbines for integrated electric propulsion without any diesel engines. If electric propulsion is used via ...
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.
"DC bus system for the main electric installation in three vessels to be built at Shipkits B.V." Archived from the original on January 29, 2013 "Oseans® low voltage electric propulsion system with DC-grid technology" "Siemens BLUEDRIVE PlusC™" (PDF) permanent dead link ]