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The brief introduction introduction of the WD305 series diesel engine and the illustration of its power rating Nov 11, 2017

A. Diesel engine introduction 

WD305 series diesel engines are, four strokes, direct injection and water-cooling high speed diesel engine. The style of intake is turbocharged air-air cooling. They are widely used in the field of diesel engine generator, agricultural irrigation, construction machinery, emergency fire protection pump and industry.

 

Diesel engine general arrangement for V12 cylinder (75 ° Angle), uses the integrated crankshaft, the body for gantry structure, cylinder head for one cylinder and one cap, each cylinder head has two inlet valves and two exhaust valves, fuel injectors are located in the center of the cylinder. Power is output from the flywheel end. Therefore, suitable power take-offs and necessary accessories must be attached to the engine before it can be properly used. Connection of the output end is SAE type and can also be modified to resilient coupling. Cylinder number designation of model 12V diesel engine: Viewed from the flywheel end, the right hand bank is the first bank and the left hand bank is the second bank; counted from free end, the first bank is cylinder numbers 1-6, the second bank is cylinder numbers 7-12. Our product is designed in the principle of series, standard, general, so that the main components can be exchanged.

 

 

B. Explanation of power rating

The power rating of WD series diesel engines is the permissible effective power output for the engine with the air cleaner, but without other accessories which will affect its running such as fan, muffler, coupler, and gear box etc. to operate under the atmospheric condition of 100kPa (750mmHg) barometric pressure, 25℃ ambient temperature and 30% relative humidity. The engine can also be overloaded at 110% of the 12 hour power rating for a short period of not over 1 hour discontinuously or continuously during each 12 hour operation.

Output power of the diesel engine that the nameplate indicates includes the power the fan has consumed when running with the fan but the output power of engine (effective power) should deduct the power the fan consumes 20KW.

Because the output power will decrease with altitude, ambient temperature and relative humidity increasing of the using area, so the customer should correct the rated power according to the correcting method of standard GB/T1105 when the barometric pressure, ambient temperature or relative humidity is different from the above stated standard atmospheric condition.