The development of the L27/38 for larger vessels was a logical development in the strategy initiated with the introduction of the L16/24, the first of the new generation of MAN B&W Holeby Diesel GenSets.

Producing 1500-2800kw, the L27/38 is based on the same innovative, streamlined concept as the L16/24: reduced size and weight, modular construction, a simplified pipeless design, fewer components, a reduced maintenance requirement, high power, low noise, economic operation and low emissions.

Robustly engineered for reliable, long TBO service, it hides a wealth of advanced technology beneath its smooth, uncluttered exterior. Its support system permit an integrated approach to fuel-oil supply and cooling water and starting-air systems. The benefits are lower initial cost and simpler operation and maintenance.

Compact size

The L27/38 is lower and shorter than the other long-stroke engines in its power class. It can be installed in restricted engine-room areas. 

Low bearing wear

The connecting rods are of the marine head type and designed for low-pressure operation, resulting in lower wear and a longer life for bearing.

Front-end concept

All support functions-oil and water pumps, coolers, filters, and safety and regulator valves are housed in a single front-end box for easy access and maintenance.

Operation on HFO

The L27/38 range operates efficiently on inexpensive HFO across the whole power spectrum. It has a high output but low lub. oil and fuel oil consumption.

Low maintenance

Designed for 20000-25000 service hours between overhauls, the L27/38 requires only minimal daily maintenance. Each complete cylinder assembly can be removed as a unit for maintenance or replacement, without requiring a large overhaul height.

Environmentally friendly

The L27/38 meets future IMO NOx emission limits.

Optimal operating temperature

The engines has an integrated cooling-water system that ensures an optimal operating temperature across the range, from idle to fuel load. In addition, the charge-air cooler is equipped with a water-mist catcher that reduces the amount of condensation in the cooler.

Lambda controller

A lambda controller ensures that all injected fuel is burnt, countering internal engine pollution and the increased wear that might otherwise arise from step-loading.

  P Free passage the engines, width 600mm and height 2000mm.

 Q Min. distance between engines: 3000mm(wihout gallery) and 3400mm(with gallery).