Weichai WP12 series marine diesel engine (295-405kW)

Short Description:

High-speed engine products including WP4.1,WP4,WP6,WP7,WD10,WD12,WP10, WP12,WP13,M26,M33, which are mainly used as the main engine and auxiliary engine of the high-speed ships and boats, passenger ship, and fishing boat and inland river transport ship; WHM6160/170 medium speed engine products, which are mainly used as the main engine, electric propeller and auxiliary engine of the bulk cargo carrier, car/passenger ferry, public service ship, offshore support vessel, ocean fishing vessel, engineering ship, multi-purpose ship; CW200/CW250/WH620/WH20/WH25/WH28 medium speed engine products, which are mainly used as the main engine, and auxiliary engine of the engineering ship, passenger ship, fishing boat, and bulk cargo carrier; and MAN series L21/31, L23/30A, L27/38, L32/40 and V32/40 products, which are mainly used as the main engine, electric propeller and auxiliary engine of the bulk cargo carrier, engineering ship, multi-purpose ship, and marine traffic management ship.


Product Detail

Product Tags

Safe and reliable
The high-strength design of structural parts such as engine block, piston and bearing bush ensures the reliability of diesel engine under high explosion pressure
For turbocharger, starter, high-pressure oil pump and other important parts, global excellent suppliers are used
Withstand the most stringent durability test and assessment; ensure the reliability of key parts and components; and the overhaul period of the whole engine is over 20000h
Perfect self-diagnosis system, perfect failure protection mode, and safe control strategy

Strong power
Accurate control by electronic control units, high injection pressure, small fluctuation of rotating speed, and strong power
Low-speed and high-torque design with the torque reserve of 25%-35%, quick response, and fast speed increase

Economical and fuel-efficient
The fuel injection law is optimized, the fuel injection pressure, fuel injection quantity and fuel injection time are accurately controlled, the fuel is fully atomized, and the minimum fuel consumption rate is 191g/kW•h

Comfortable and environmentally friendly
It can realize multiple injections such as pre-injection and post-injection, and the noise and vibration are reduced by 20% compared with the mechanical pump system
Water jacket exhaust pipe and water jacket exhaust tail pipe are used to reduce engine compartment temperature
IMOⅡ ship emission standards are met

Strong practicability
LCD Internet instruments, vibration isolators, and hand-pressed oil well pumps can be equipped to meet the requirements of different customers
Horizontal air filter and rear turbocharger reduce the height of the whole engine and facilitate the layout of the engine compartment
Different control strategies are adjusted according to different performance requirements
Receive/output various control signals, which meet the requirements of automation control

Type

Four-stroke, water cooled, in-line, turbocharged and intercooled

Number of cylinders

6

Cylinder Bore/stroke

126×155(mm)

Displacement

11.596L

Oil consumption rate

≤0.5g/kW·h

Noise

≤100dB(A)

Minimum fuel consumption rate

191g/kW·h

Idle speed

600±50r/min

Torque reserve

25-35%

Rotation direction of crankshaft 
(facing the flywheel end) 

Counter-clockwise

Dimensions
Length × Width × Height/net weight

Mechanical pump 1695×858×1385(mm) 1200kg
Electronical-controlled pump and rear turbocharger 1683×928×1264(mm) 1200kg

Series

Model

Air intake mode

Rated power 
kW/Ps

Speed
r/min

Fuel feeding mode

Emission level

Power classification

WP12

WP12C400-18

Turbocharged and intercooled

295/400

1800

Mechanical pump

IMOⅡ

P1

WP12C450-21

Turbocharged and intercooled

330/450

2100

Mechanical pump

IMOⅡ

P1

WP12C500-21

Turbocharged and intercooled

368/500

2100

HPCR

IMOⅡ

P2

WP12C550E212

Turbocharged and intercooled

405/550

2100

HPCR

IMOⅡ

P3

Remark: Product parameters and model portfolio are for reference only. Please contact relevant personnel for official information on delivery time and fishing boat model portfolio.


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