350hp weichai engine WP12 for fishing boat

Upgrade and replacement of new power - five special technologies 

Saving fuel:The lowest fuel consumption is 192g/kw•h 

Strong power:External characteristic is up to 2100N•m 

Environment protect and low noise:Smoke value in range of full load is less than 1.0Rb 

WP12C series marine diesel engines based on Landking national WP12 series diesel engine focus on use characteristics and configuration requirements of marine power, adopt design concepts to optimize and design special energy saving and environment protection diesel engine for marine, and is the ideal power for inland shipping, fishing and public boat. 

Five special technologies  

Reliability      Safety   High efficiency      Low-noise             Convenience 

Reliability-Special oil pan technology for marine-Flat oil pan 

Improve reliability 

Adopt special flat oil pan for marine with overall stamping design, and arrange the ribs reasonably to improve the strength; no welding line on the surface, formed at one time, prevent the leakage failure, and improve reliability. 

Convenient to maintenance 

Reduce the overall height, increase the distance to the bottom of the cabin, convenient to replace oil 

Safety—Protection technology of preventing burning—Steel low-pressure pipeline+ Water jacket exhaust pipe 

Steel low—pressure pipeline 

Optimize the layout of fuel pipeline, adopt steel low-pressure pipeline, improve safety and reliability; meanwhile, the appearance is more beautiful, and comply with regulatory requirements of marine.  

Water jacket exhaust pipe 

Adopt water jacket exhaust pipe cooled by freshwater to reduce the cabin temperature caused by surface radiation effectively, and improve the comfort and safety. 

Efficient—Multi-wedge belt transmission technology 

High transmission efficiency, stable operation, and reduced the “Turn belt phenomenon” effectively caused by the beating of the original V-belt during transmitting. 

Achieved belt automatic tensioning in the process of operating diesel engine and maintenance free according to the auto-tensioner 

Low-noise——Flange pump technology——Flange connecting high-pressure pump 

Adopt high-pressure pump connect flange to improve the oil pump connection stiffness, and reduced vibration problems caused by connection of coupling to improve reliability and reduce noise. 

Convenient——Non-stop filter technology——Replace the filter element in non-stop situation 

Replace diesel oil and oil filter element without stopping in the situation of engine operating according to design regulations of marine, and convenient to maintenance. 

Reduce occur of failure caused by blocking of filter element during the operating of marine, increase the safety of marine.

Parameters

model	WP12
Type	in-line, water-cooled, four-stroke, direct injection
Rated Power(HP)@Rated speed (rpm)	350-550hp@2100
NO. of cylinder	6
Bore×stroke(mm×mm)	126×155
NO. of valve/cylinder	4
Crankshaft rotation direction(look from the free end)	Clockwise
Ignition sequence	1-5-3-6-2-4
Displacement (L)	11.596L
Rated fuel consumption rate (g/kW.h)	215
Maximum combustion pressure (MPa)	16
Compression ratio	17:1
Oil fuel consumption ratio(%)	0.4
Starting mode	Electric starting
Charge ratio	1.85
Idle speed(r/min)	600±50
Net weight(kg)	1200
Dimensions L×W×H (mm)	1695×840×1280
Certificate	IMO 2
Overhaul time	12000hours