Hydraulic drive

Framo Hydraulic Drive System Overview

Hydraulic Drive

A complete system designed and manufactured by Framo. Hydraulic drive provides the most flexible and safe power transmission for a cargo pumping system on tankers.

Hydraulic Power Unit

The hydraulic power pack prime movers can be electric motors or diesel engines.

A combination of electric motor and diesel engine prime movers allows the ship’s generators to be designed for the relatively low power requirement in sea-going mode rather than the considerably higher requirement during cargo unloading. The ship’s auxiliary engines can therefore operate with an economic load while at sea where the majority of running hours will be. The diesel hydraulic power packs will provide any additional power needed for a high capacity/high head cargo discharge.

All power packs, stainless steel system tank, oil cooler, and full flow filter are mounted, piped and wired on a module for resilient installation onboard.

This Hydraulic power unit is full scale tested together with the control system module before shipment.

The hydraulic pumps are of the variable displacement type and fitted with a pulsation damper for maximum reductions in pulses and noise.

A power saving device incorporated into the Framo control system automatically regulate and share the load between each power pack in operation.

Control

The hydraulic power unit and all cargo pumps and other consumers are operated and monitored from the Framo control panel.

The control system can be interfaced with ships Integrated Control System.

Hydraulic power units.

Hydraulic Piping

The need for quality hydraulic installation onboard vessels operating in severe marine environment has led to the development and manufacturing of Framo hydraulic piping systems. The hydraulic piping system is based on high quality components and piping materials.

Prefabrication of the piping system to any level of complexity from a single spool piece to a full system is available.

Quality and Competence

Duplex stainless steel on all high pressure branch pipes and pilot pipes on deck. Stainless steel AISI 316L on all low pressure hydraulic pipes on deck. 

The hydraulic pipes are of high standard with smooth internal surface intended for hydraulic oil with high cleanliness. All service valves are made from stainless steel. 

The Framo hydraulic piping system is designed with extensive use of cold bending in order to limit the number of flanged connections.

Framo supply specially designed flanges for all pressure ratings, flexible bulkhead penetrations, resilient pipe clamps, anchor supports, and other accessories for the hydraulic piping system.

Framo AS has a highly specialized manufacturing plant in Norway for the design and manufacture of all components in the hydraulic piping system.

Prefabrication of the piping system to any level of complexity from a single spool piece to a full system is available.

In all areas of design special attention is given to reduce vibrations and noise from components and pumps. The cargo pumps, hydraulic power units and hydraulic piping are all resilient installed.