Hydraulic Overview

Simplified Manifolds

Every stabilisation device is serviced by a dedicated manifold block. The manifold sits between the hydraulic supply and the actuator and contains all necessary hydraulics controls for the actuator. Manifolds are supplied complete with integral drip tray and cable junction box. The precision drilled aluminum manifolds make extensive use of cartridge valve technology to improve reliability and reduce piping.

Within the manifold there are two dedicated oil circuits, one for normal control and a second for backup (non follow up) control. Separate hydraulic and electrical connections can be made to each circuit in isolation of the other in order to provide the independent means of control required of a primary steering system. Where such a level of control is not required, a single source of supply can be equally utilised. It is also possible to connect a dedicated hand pump and reservoir to the manifold for yet another level of backup operation.

Hydraulics Power Packs

Each stabilisation device has a certain oil flow requirement that can be delivered from a variety of sources. The simplest arrangement is to provide a dedicated hydraulic power source at each device. Increased redundancy and efficiency can be achieved by grouping some or all devices on a common manifold sharing the same hydraulic pump set. It is also possible to share a common hydraulic pump set with non stabilising equipment. In such an arrangement, the stabilisation system could utilise the pumps of the deck equipment that may otherwise not be utilised when at sea at sea.

Ship Dynamics Power packs are electrically driven and are available in a range of sizes. If there is limited electrical power available you may wish to consider driving hydraulic pumps from a power take off on either the engine or the gearbox. Alternatively a dedicated pump drive may be installed. View Hydraulic component detail.