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Development of Railway locomotive oil additive

Development of Railway locomotive oil additive

(Summary description)Internationally, American railway diesel locomotives used the first generation of oil in 1950, and the diesel engine was a non-supercharged type.

Development of Railway locomotive oil additive

(Summary description)Internationally, American railway diesel locomotives used the first generation of oil in 1950, and the diesel engine was a non-supercharged type.

Information

Internationally, American railway diesel locomotives used the first generation of oil in 1950, and the diesel engine was a non-supercharged type. From the late 1950s to the 1960s, the use of supercharging technology doubled the power of a single cylinder of diesel engines. In 1964, the second generation of oil was developed, which improved the cleanliness and filterability of the oil. Oil consumption is reduced to 1.2% to 1.7%. From 1965 to 1970, the power of the locomotive was further improved, the single-cylinder power reached more than 150kW, the strengthening coefficient was 60-75, and the oil consumption requirement was reduced to 0.8%-1.3%. The performance of the second generation oil was not suitable, so the third generation oil was developed from 1968 to 1970.

china Railway locomotive oil additive

The United States developed the fourth generation of oil in 1977, and its base value was increased to 13. This oil is suitable for the case where the sulfur content of the fuel exceeds 1%, but due to the continuous improvement of the diesel engine strengthening coefficient, the oil consumption requirement is reduced to 0.5% to 1.0%. After 1978, due to the development of energy-saving diesel engines, the strengthening coefficient has reached 88 to 91, the oil temperature is as high as 125 ℃, and the oil consumption rate has dropped to 0.3% to 0.5%. Therefore, in the late 1980s, the fifth-generation oil was developed, and the base value of the oil was improved, especially the high-temperature detergency of the oil was further improved, and the carbon deposits in the ring groove and the wear of the diesel engine were reduced. The fifth-generation oil and fourth-generation oil of railway locomotives are still in use today. Compared with the internal combustion engine of automobiles, the development of the oil used is relatively slow.

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