The UDAB engine

The high power medium speed marine diesel engine project

To make a compact, lightweight, efficient, versati le, economical, robust and easy to maintain engine.

Read more about it in The Motorship special servey number from June 1970.

High power medium speed marine diesel engine, meeting the trend towards larger and faster vessels, with all the advantages of diesel propulsion together with optional propeller speed and flexibility for adaption to small engine rooms.

The UDAB engine is of the four-stroke trunk piston type with turbocharging utilizing the gas pulse energy. The engine is designed and suitable for operation and manoeuvring on heavy fuel oil. It is available in V-form with 8,10,12,14,16 and 18 cyiinders with a continuous output of 1,000 bhp per cyiinder at 425 rev/min. 6 and 9 cylinder in-line engines are also being planned. Through the different numbers of cylinders available as weil as arrangements with a different number of units, the engine will constitute a compact and efficient propulsion set for all types and sizes of ships. ln many cases the auxiliary engines will also be replaced to some extent by the arrangement of auxiliary power transmission from the UDAB engine.
This engine is a monobloc unit with an underslung crankshaft. The engine casing is placed on the top of a base frame and the two components form a rigid unit which will be mounted on only four brackets directly connected to the webs of the hull.
The installation of the engines in the ship will thus be very simple and it will make the engine independent of the inevitable deformations of the ship structure caused by variations in hydrostatic pressure under different bad and weather conditions. The engine has been designed with the utmost care regarding accessibility and maintenance of the various components. To reduce service work on the engine itself and to facilitate handling of the engine parts, the cylinder cover and liner, cooling jacket, piston and con necting rod can all be handled as one integral unit. A special overhead rig will lift this unit in the anguiar direction of the cylinder and transfer it to the workshop where an overhau led spare unit is already prepared for installation. The removal and fitting of such a unit by this arrangement will take a minimum of time, approximately one hour, and there will normally be no need for extra spares.

UPPDATERAD 2007-10-15 18:19 BX NUMBER OF VISITORS - ANTAL BESÖK sedan senaste uppdatering

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