Propulsion system

Multiple-Geared Configuration

Daihatsu’s multiple-geared configuration is ideal for ships with twin-shaft propellers or low ceiling engine rooms. We offer a wide selection to choose from including the twin-engine single-shaft system, single-engine twin-shaft system, four-engine twin-shaft system, four-engine single-shaft system, and eight-engine twin-shaft system. Selective engine cut-off is also possible for various power requirements.

Single-Engine Twin-Shaft System for DoubleBow Ships

Our engines are at work onboard double-bow ships navigating narrow channels or short routes, or which operate as sightseeing boats on river cruises, etc. A single engine drives the propellers on the bow and stern. Any combination of single-engine twin-shaft system and Daihatsu’s remote control system can be selected according to steering demands and guarantees improved navigation.

Optimal propeller for various hull designs

With an optimal sized propeller rotating at an rpm 10% lower than conventional propellers, fuel consumption can be decreased by as much as 3%. Daihatsu’s geared diesel engine sets can utilize the propeller that best matches the hull design thus offering greatly improved propulsion efficiency

CRASH ASTERN System

With a low-rpm large-diameter propeller, engine stalling is always a problem when moving astern because of increased torque and engine overload. For this reason, Daihatsu geared diesel engines employ our own CRASH ASTERN system. It can also be effectively operated from the bridge.

Power Take-Off & Engine Layout

With Daihatsu’s geared diesel engines, generators, cargo oil pumps and other machinery can be driven using power drawn through the front engine block and reduction gear. This system greatly reduces fuel consumption. What’s more, one of the generators used in conventional systems can be omitted, which enables more effective use of dead space. In addition, this kind of system reduces labor and costs in running and maintenance.