MAN reveals details of new gas-powered stationary engines

MAN E3872 natural gas and biogas engine MAN E3872 natural gas and biogas engine

MAN Engines has published details of its new biogas and natural gas engines for stationary applications.

Based on the MAN E3262 (25.8 L), the MAN E3872 is a 29.6 L 12-cylinder four-stroke engine with spark ignition. The new engine produces 735 kW at 1,500 rpm. Length/width/height of the engine is 1760 x 1245 x 1410 mm and it has a dry weight of 2160 kg.

While the new engine uses the same crankcase as the E3262 (in production since 2010), the bore has been increased to 138 mm (+6 mm) and the stroke has increased to 165 mm (+7 mm).

MAN states that numerous innovations have been incorporated in the engine to achieve this power output.

These include the single turbo concept, which is said to have had a significant impact on engine efficiency through fine-tuning the inlet and outlet guide units (diffuser and nozzle ring). This allows the turbo to operated at optimal efficiency.

The engine also uses a new piston bowl design to help accelerate combustion and increase efficiency. The pre-chamber spark plugs, specifically adapted for the combustion chamber, help the mix to combust in several areas, which helps to reduce NOx output.

A hydraulic valve lash adjuster makes checks and adjustments of the valve train unnecessary.

Other modifications include control times based on the Atkinson cycle, which is unusual for a stationary engine.

The natural gas and biogas variants of the E3872 engine respectively produce 250 mg and 500 mg NOx. An aftertreatment system (such as SCR) has the potential to reduce this to 100 mg.

MAN says that the efficiency of this engine makes it ideal suitable for applications where ‘the focus is on the production of electricity and additional generation of heat’. This makes it suitable for agricultural and municipal applications, and also other business settings.


Receive the information you need when you need it through our world-leading magazines, newsletters and daily briefings.

Sign up


The trusted reference and buyer’s guide for 83 years

The original “desktop search engine,” guiding nearly 10,000 users in more than 90 countries it is the primary reference for specifications and details on all the components that go into engine systems.

Visit Now

Becky Schultz Vice President of Content Tel: +1 480 408 9774 E-mail: [email protected]
Julian Buckley Editor Tel: +44 (0) 1892 784088 E-mail: [email protected]
Chad Elmore Managing Editor Tel: +1 262 754 4114 E-mail: [email protected]
Josh Kunz Power Progress Brand Manager Tel: +1 414 379 2672 E-mail: [email protected]
Roberta Prandi Power Progress International Brand Manager Tel: +39 334 6538183 E-mail: [email protected]
Simon Kelly Sales Manager Tel: +44 (0) 1892 786 223 E-mail: [email protected]