Weichai 12M55 series marine diesel engine (1361-2356kW)

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

12M55 series marine diesel engine

• 18% torque reserve
• Minimum fuel consumption 190g/kW.h
• Overhaul period 20000h
• Emissions meet IMO II/China II

Product advantages

　　Safe and reliable

• The high-strength design of structural parts such as body, piston and bearing shell ensures the reliability of diesel engine under high explosion pressure
• Utilizing Weichai's global excellent supplier system, the quality of parts is reliable
• It has undergone rigorous and rigorous bench and three-level test assessment and verification to ensure the reliability of key components. The overhaul period of the whole machine is more than 20,000 hours.
• Cooling and lubrication systems are equipped with emergency ports
• Perfect self-diagnosis system, perfect fail-safe mode, safe control strategy

　　Powerful

• Precise control by electronic control unit, high fuel injection pressure, small speed fluctuation and strong dynamic performance 
• Low-speed and high-torque design, 18% torque reserve, quick response and quick acceleration
• 50% rated speed can reach 115% rated torque

　　Economical and fuel-efficient

• Optimize the fuel injection law, accurately control the fuel injection pressure, fuel injection quantity and fuel injection time, fully atomize the fuel, wide economic fuel consumption range, and the minimum fuel consumption rate is 190g/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 to reduce cabin temperature
• Emissions meet the requirements of IMO Tier II and China Stage II regulations

　　Practical

• Optional LCD Internet instrument, vibration isolation pad, hand pump and other configurations to meet the needs of different customers
• Modular design of the whole machine, compact structure, convenient cabin layout
• Observation holes are placed on the side of the body, which is convenient for maintenance, and the whole machine is beautiful and compact.
• Adjust different control strategies according to different performance requirements 
• Receive/output a variety of control signals to meet automation control requirements