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Marine Engine-WP12 Series: General Specifications

This document summarizes the specifications of the WP12 Series marine engine from Weichai Power Co. Ltd. It is a 6-cylinder diesel engine with a displacement of 11.596 L and bore and stroke of 126x155 mm. It meets IMO Tier II emission standards and is available in 350, 400, 450, and 500 horsepower models at various RPMs. Standard equipment includes components like the cylinder block, crankshaft, fuel system, cooling system, and electrical system. Optional equipment and different duty applications are also described. Dimensions are provided showing the engine is 1695 mm long, 858 mm wide, and 1385 mm tall, weighing 1200 kg.

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347 views2 pages

Marine Engine-WP12 Series: General Specifications

This document summarizes the specifications of the WP12 Series marine engine from Weichai Power Co. Ltd. It is a 6-cylinder diesel engine with a displacement of 11.596 L and bore and stroke of 126x155 mm. It meets IMO Tier II emission standards and is available in 350, 400, 450, and 500 horsepower models at various RPMs. Standard equipment includes components like the cylinder block, crankshaft, fuel system, cooling system, and electrical system. Optional equipment and different duty applications are also described. Dimensions are provided showing the engine is 1695 mm long, 858 mm wide, and 1385 mm tall, weighing 1200 kg.

Uploaded by

Dolfin Yohanes
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Version 2015A

Marine Engine- WP12 Series


General Specifications

Bore &Stroke 126x155 mm


Displacement 11.596 L
Cylinder Number 6
Compression ratio 17:1
Fuel System Mechanical Pump/CR
Aspiration TA
Emission Standard IMO Tier Ⅱ

Duty Model HP kW RPM Duty Model HP kW RPM


P1 WP12C350-15 350 258 1500 P2 WP12C500-21 500 368 2100
P1 WP12C400-18 400 295 1800 P3 WP12C550-21 550 405 2100
P1 WP12C450-21 450 330 2100

Standard Equipments
Engine and block Fuel system
Cast iron frame style body structure P-type in-line injection pump or common-rail
One-piece forged crankshaft Dual-skinned fuel pipe with alarm and leakage collector
Separate cast iron cylinder heads and dry liners Duplex fuel filters replaceable engine running
Split-cap forged steel connecting rods Water separator
Aluminium alloy pistons with gallery oil cooling Intake air and exhaust system
Cooling system Washable air filter & exhaust expansion joint
Fresh / raw water heat exchanger with integrated thermostatic Insulated dry type or water jacket exhaust manifold
valves and expansion tank Electrical system
Cast iron centrifugal fresh water pump, mechanically driven 24V electric starter motor and battery charging alternator
Self-priming raw water pump, mechanically driven Voyage safeguard monitor and 5m harness
Lubrication system Flywheel and housing
Full flow duplex type oil filters replaceable engine running SAE1 flywheel housing and SAE 14 size flywheel

Fresh water cooled lube oil cooler plate type Certification


CCS and EIAPP

Optional Equipments
Different harness length of remote monitor Equipment and factory trial according to Major Classification
Free end PTO Societies rules

P1 Duty P2 Duty P3 Duty P4 Duty


Application Unrestricted continuous continuous intermittent high performance
Engine load variations Very little or none continuous important very important
Mean engine load factor 80 to 100% 30 to 80% 50% 30%
Annual working time More than 5000 h 3000 to 5000 h 1000 to 3000h less than 1000 h
Time at full load unlimited 8 h each 12 h 2 h each 12 h 1 h each 12 h
Dimensions and Weight

Length 1695 mm H*

Width 858 mm H

Height 1385 mm
Dry Weight 1200 kg
L W

Power definition
Standard ISO 3046/1 -1995(F)

Reference conditions
Ambiant temperature 25 °C

Barometric pressure 100 kPa


Relative humidity 30%
Raw water temperature 25 °C

Fuel oil
Relative density 0,840 ± 0,005
Lower calorific power 42 700 kJ/kg
Consumption tolerances ±5%

Lube oil
WP12C350-15 WP12C400-18 Recommend grade CF-4 15W/40

WP12C450-21 WP12C500-21

Manufacturer: Weichai Power Co., Ltd


Distributed By:
Address: 197 A, Fushou East Street, High-Tech
 
  Development Zone, Weifang, China
www.weichai.com

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