Weichai WP4.1N series marine diesel engine (80-140KW)

Desciption

WP2.3N/WP3N/WP4.1N/WP6/WP7/WP10/WP12/WP13/M26/M33/M55 and other high-speed motor products are mainly used in high-speed boats, passenger ships, fishing boats, and main engines of inland water transportation in inland and offshore markets. and auxiliary engines; WHM6160/170/6WH17/12WH17 medium-speed engine products, mainly used in bulk carriers, passenger rollers, official vessels, marine support vessels, ocean-going fishing vessels, engineering vessels, multi-purpose vessels, offshore The main engine and auxiliary engine of the traffic management ship. CW200/CW250/WH620/WH20/WH25/WH28 and other medium-speed engine products are mainly used in the main and auxiliary engines of engineering ships, passenger ships, fishing ships and bulk carriers in the inland, offshore and ocean markets; MAN series L21/31, L27 /38, L32/40 and V32/40 products are mainly used in the main engines, electric propulsion and auxiliary engines of bulk carriers, engineering ships, multi-purpose ships, and marine traffic management ships in the offshore and ocean-going markets.

Product parameters

Type	Four-stroke, water-cooled, in-line, direct injection	Number of cylinders	4
Bore/Stroke	105×118(mm)	Displacement	08L
Start method	Electric start	noise	≤92dB(A)
noise	≤97dB(A)	oil consumption rate	≤0.1g/kW.h
Crankshaft rotation direction (facing flywheel end)	counterclockwise	idle speed	700r/min
length x width x height	960×700×850(mm)	net weight	480kg

Product spectrum

series	model	Intake method	Rated power kW/Ps	Calibration speed r/min	Oil supply method	emission level	power classification
WP4.1N*	WP4.1NC120-18E220	Turbocharged	88/120	1800	Electronically controlled common rail	China II	P1
	WP4.1NC143-18E220	Turbocharged	105/143	1800	Electronically controlled common rail	China II	P1
	WP4.1NC130-21E220	Turbocharged	95/130	2100	Electronically controlled common rail	China II	P1
	WP4.1NC163-21E220	Turbocharged	120/163	2100	Electronically controlled common rail	China II	P1
	WP4.1NC177-23E220	Turbocharged	130/177	2300	Electronically controlled common rail	China II	P3
	WP4.1NC190-26E220	Turbocharged	140/190	2600	Electronically controlled common rail	China II	P3

WP4.1 series marine diesel engine

Torque reserve 20%-35%
Minimum fuel consumption 200g/kW.h
Overhaul period 12000h
Emissions meet China II

Product advantages

　　Reliable and durable

The body, cylinder head, piston, bearing bush and other structural parts are newly designed, produced by Weichai Rui Power Base
Utilizing Weichai's global excellent supplier system, the quality of parts is reliable
Dust-free, constant temperature assembly workshop, high-precision test stand

　　Powerful

Large torque in the low and medium speed range, continuous output and strong power
Precise control by electronic control unit, high fuel injection pressure and excellent acceleration performance
50% rated speed can reach 132% rated torque

　　Economical and fuel-efficient

Adopt high-pressure common rail technology, use Bosch fuel system, and Weichai's own ECU to precisely control the amount of fuel injection
Minimum fuel consumption rate 200g/kW·h
Oil replacement cycle ≥ 500h

　　Comfortable and environmentally friendly

NVH optimized matching of the whole machine, low noise
Gear chamber cover, cylinder head cover, closed flywheel housing noise reduction design to reduce noise leakage
The use of electronically controlled multiple injections greatly reduces vibration and noise
Emissions meet China’s Phase II regulatory requirements

　　Practical

Optional vibration isolation pad, manual oil pump and other configurations to meet different customer needs
Adjust different control strategies according to different performance requirements
Receive/output a variety of control signals to meet automation control requirements

Language

Weichai WP4.1N series marine diesel engine (80-140KW)