HANSA 05-2019

Tech-Hub
HANSA TECH-HUB
ORTLINGHAUS
Driving propeller and firefighting pump with same main engine
FiFi pumps have become a standard requirement
in new tugboats. How to find an economical solution
without compromising manoeuverability? Clutch maker
Ortlinghaus proposes one main engine to drive the
© Ortlinghaus
propeller and the FiFi pump. Space can be saved, as no
separate engine is needed. During firefighting operation
the pump needs full power while the propeller provides
a certain level of thrust. This task can be realised with a
FiFi pump connected to the B-side of the main engine
and a slipping clutch between the diesel and propeller
side, providing only part of the power to the propeller.
With high-speed engines this becomes a challenge. Ortlinghaus
has developed system solutions with a friction
clutch that permit thermally controlled full slip at high
speeds. Propact 75 HD Ortlinghaus is able to slip up to
nominal speed of high-speed engines, Propact 72 MD,
can be used to slip up to medium speeds.
DAMEN
Rudder and steering gear system for ice breaker
Damen Marine Components (DMC) has completed
supply and installation of a number of critical systems for
the Antarctic Supply Research Vessel (ASRV) »Nuyina« for
the Australian government. These had to be fabricated to exceptionally
high standards to cope with the ice in the Southern
Ocean. DMC, under its Van der Velden Marine Systems
brand, is responsible for the detail engineering and manufacturing
of the rudder and steering gear system. The rudders
have been designed and engineered by project-lead Damen
Schelde Naval Shipbuilding as free-hanging, full-spade rudders.
They deliver optimum hydrodynamic properties but
until now were unheard-of for an icebreaking vessel of this
class, given the forces involved. Other innovative features
include integrated mechanical rudder stoppers, which are
located between the rudder blade and (hull) skeg structure
rather than on the outside hull due to the latter’s radical design.
To deliver all the necessary steering system components
from the bridge to the rudder, including hydraulics,
control and power systems, DMC pooled its expertise in this
field with that of MacGregor Hatlapa (MacGregor).
• Drahtseile • Tauwerk • Festmacher
• CASAR Bordkranseile • Anschlagmittel
• Prüflasttest bis 1.000 t
• Segelmacherei • Taklerei • Montage
Walter Hering KG
Porgesring 25
22113 Hamburg
Telefon: 040 – 73 61 72 -0
eMail: info@seil-hering.de
www.seil-hering.de
WINGD/EXXON MOBIL
Focus on smart shipping
WinGD and ExxonMobil have announced a collaboration
to assist ship operators with engine maintenance.
This will be done with the help of analysis and monitoring
tools. The key objective is to merge WiGD’s Integrated Digital
Expert (WiDE) maintenance technology with ExxonMobil’s
Mobile Server Cylinder Condition Monitoring service.
Gathering knowledge about the functioning of a ship’s engine
is more important than ever to ensure safe and efficient
engine operation. According to the companies, with Mobile
Server Cylinder Conditioning Monitoring, the sulphur content
in marine fuel can be measured throughout the refuelling
system and at engine entry. This can help ship owners
to ensure IMO compliance.
48 HANSA International Maritime Journal 05 | 2019