keyboard_arrow_left See all news

Recent News

26 Jan, 2023 /
Seawork Press FP
How to use the full potential of decarbonisation
Narve Mjøs, Vice President of DNV Maritime & and Founder of the Norwegian Green Shippin...
25 Jan, 2023 /
Seawork Press FP
Places and spaces fit for the future
‘A fresh drive to ensure broader representation in the profession of civil engineering...
23 Jan, 2023 /
Seawork Press FP
Hot start to the year
A Hot Water Machine is the first large project to be shipped in 2023 by SMP. Designed or...
19 Jan, 2023 /
Seawork Press FP
£1.6b contract to deliver 2000 jobs
Creating 1,200 UK shipyard jobs, and an expected 800 further jobs across the UK supply c...
19 Jan, 2023 /
Seawork Press FP
Tugboats to reap the benefits
A prototype electric motor unit that will achieve the industry's highest class output de...
22 May, 2019
keyboard_arrow_left See all news

Thermally controlled full slip at high speeds

Family owned company Ortlinghaus is a clutch manufacturer who, for more than 75 years has been a provider of clutches for main propulsion.

Installation of firefighting (FiFi) pumps and monitors has become increasingly a standard requirement in new tugboat orders of higher bollard pulls. Not only the high safety demands of international ports, but also improved charter possibilities for an all-purpose sophisticated tugboat of today’s generation necessitate FiFi auxiliary equipment.

Ortlinghaus recognises that tugboat prices are subject to substantial downward pressure and asks the question as to how to find an economical and smart solution without compromising maneuverability performance and space on board? A very effective solution would be to drive the propeller and the FiFi pump with the same main engine. Space can be saved, as no separate engine is needed to run only the pump, and there is high availability of the main engine, which is in operation daily.

During firefighting operation, the FiFi pump needs full power for operating while the propeller provides a certain level of thrust for maneuverability. This task can be achieved 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. However, with a market tendency towards high speed engines in many regions for tugboat propulsion lines, this becomes a very big challenge for the slipping clutch.

Ortlinghaus has developed system solutions with a friction clutch, that can permit thermally controlled full slip at these high speeds. The company has two capable alternatives to meet the challenges of balancing the drive between propulsion and the firefighting pump. System solution Propact 75 HD Ortlinghaus is able to slip up to nominal speed of high-speed engines. Alternatively, one size smaller, Propact 72 MD, can be used to slip up to medium speeds, like typical FiFi pump speeds.

See Ortlinghaus at Seawork on stand PO45

Processing. Please wait.
Loading...