MEDIUM SPEED SEMT-PIELSTICK DIESEL ENGINES FOR MARINE PROPULSION-APPLICATIONS AND RESULTS IN SERVICE

This paper does not dwell upon the known advantages of medium speed engines such as volume and weight reduction of the propulsion unit, matching of propeller speed with its maximum efficiency, increased safety from several independent engines, uniformity of cylinders for different needs and so on, as such matters have been the object of major and minor developments during recent years. Rather does it deal with some practical supplementary elements proper to medium speed propulsion units as, for example, the common case of the propulsion installation consisting of two engines coupled to one propeller with a clutch separating each engine from the reduction gear box. Such clutches were some years ago, either hydraulic or electro-magnetic; now they are increasingly replaced by friction type clutches, particularly for variable pitch propellers.

• Supplemental Notes:
  • 45 Conference Papers presented at IMAS 73, London, 4-8 June 1973, organized by the Institute of Marine Engineers. This paper is available only in a set of 6 papers in Subject Group 8: "Marine Diesel Engines" at $10.00.
• Corporate Authors:

  Institute of Marine Engineers

  Memorial Building, 76 Mark Lane
  London EC3R 7JN,   England 
• Authors:
  • Gallois, J E
• Publication Date: 1973

Subject/Index Terms

• TRT Terms: Clutches; Diesel engines; Propulsion; Reduction gears
• Old TRIS Terms: Diesel propulsion; Friction clutches; Medium speed diesels
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00048480
• Record Type: Publication
• Source Agency: Institute of Marine Engineers
• Files: TRIS
• Created Date: Nov 14 1973 12:00AM