D12.42C Sinotruk 4 stroke high power boat engines for finishing boat

The diesel engine has the highest thermal efficiency (engine efficiency) of any practical internal or external combustion engine due to its very high expansion ratio and inherent lean burn which enables heat dissipation by the excess air. A small efficiency loss is also avoided compared to two-stroke non-direct-injection gasoline engines since unburned fuel is not present at valve overlap and therefore no fuel goes directly from the intake/injection to the exhaust. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) can have a thermal efficiency that exceeds 50%.
D12 series marine diesel engine, based on the WD615 series technology, is a new engine which is designed by SINOTRUK and Ricardo company, it has features of big power, compact structure, good reliability, long life span, excellent performance and low fuel consumption. A cover of a cylinder, four-valve intake and exhaust structure, reliable work, convenient disassembly According to different conditions and requirements, it can choose to use electric pumps or common rail pump. Built-in oil cooler, safe and reliable. The back-end layout (Flywheel end) gear train can reduce noise, improve the reliability of the engine. Water outlet pipe is integrated with the body type with a duplex type thermostat. Frame type main bearing structure makes the whole body with high rigidity, which is favorable to improving the reliability and service life. Built-in booster makes compact arrangement.