Sealing arrangement for rotating propeller shafts of ships

US5219434A · kind A · utility

Assignee

• Blohm & Voss GmbH · DE

Inventors

• Ernst-Peter Von Bergen · Büdelsdorf, DE
• Gunter Pietsch · Hamburg, DE

Key dates

• Filing date: Feb 19, 1992
• Grant date: Jun 15, 1993
• Expiry date: Feb 19, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S277/93
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A seal arrangement for rotating shafts, in particular a propeller shaft of a ship which is in contact with water containing impurities, is designed to provide a filter portion substantially adjacent the outermost seal to thereby filter dirt particles out of the water and keep the dirt particles out of the vicinity of the seal. Such a filter can be made from a sintered material and can essentially be designed to fit the existing space available along the propeller shaft.