The similarity between the Marine main engine and the high speed small diesel electric control injection system.

(1) both can significantly improve diesel engine emissions.Due to the energy crisis and serious environmental pollution, the fuel economy and emission targets of diesel engines are very demanding.The emission of Marine diesel engine is a major problem in the development of diesel engine.The international maritime organization (IMO) "marpol 73/78" has imposed strict limits on the discharge of the ship's main engines, as stipulated in the new annex to the air pollution caused by ships.There are two main restrictions on emissions: first, the limit of NOx in article 13 -- the low-speed machine is l strong/(kW·h);The medium speed machine is 17-9.849 / kW · h);The high speed machine is 9.849 / (kW · h).Two is the limit of S02.Similarly, the emission standard of diesel engine diesel engines in Europe and diesel emission standards in China are strictly required to reduce NOX emission of diesel engines.Electric control injection system can realize high pressure injection of diesel engine.Fuel injection pressure can reach 100MPa or even higher, and the injection pressure is stable.In each load condition, the fuel can be atomized and improve the combustion quality, so as to reduce the emission of PM, CO and HC and meet the emission standard.

(2) the adaptability of electronic injection system can improve the reliability of diesel engine.

(3) fast response and high control accuracy.