Wartsila Finland Oy

Trident Bv

Peter Schalk

Bart Van Der Ven

Robert Burger

Koenraad Van Eersel

Frank Kroot

Adrie Huijbregts

A method of and an arrangement for improving the lubrication system of a propulsion device of a marine vessel are specifically applicable in removing water from the lubrication oil of various types of thrusters. An inert gas is arranged from an inert gas source to flow through a gas cavity in the lubrication system for flushing moist gas from the cavity.

Method of and an arrangement for improving the lubrication system of a propulsion device of a marine vessel

Disclosed is a method for maintenance of a ship propeller including the steps of: placing a flexible habitat having an open upper end over an uppermost blade and a portion of the propeller hub, and establishing a gas seal between the upper end of the habitat and the blade to close the habitat at its upper end. After fixing the lower end of the habitat relatively to the propeller, compressed gas is preferably introduced into the habitat to displace the water in the habitat. The apparatus for maintenance of a ship propeller under water comprises a flexible habitat with an open upper end. The habitat has a gas seal adapted to cooperate with a propeller blade surface to establish a gas seal to close the habitat at its upper end and fixing means adapted to fix the open lower end of the habitat relatively to the propeller. A means for introducing compressed gas into the habitat is provided.

Propeller service method

Growing community of inventors

Aalburg, Netherlands

Peter Schalk