TURBOCHARGING DEVELOPMENTS IN THE DOXFORD OPPOSED PISTON TWO-CYCLE MARINE ENGINE

The paper is introduced by a brief review of the continuing development of the turbocharged Doxford engines from the 1953 prototype. Port area diagrams in conjunction with blow-down and scavenge diagrams show that constant pressure turbocharged engines require considerably smaller blow-down integrals than pulse turbocharged engines. The low resistance to flow through the cylinders in conjunction with these considerations has favoured the change over to constant pressure turbocharging at a scavenge pressure of approximately 2 bar <abs.>. An empirical basis for design of new engines is presented and discussed and a new exhaust belt design is described.

• Supplemental Notes:
  • I. Mech. E. Paper presented at Conference on Turbocharging and Turbochargers, London, 18-20 Apr.1978, p.29 (8 pp., 8 ref., 1 tab., 5 graphs, 1 diag.)
• Authors:
  • Orbeck, F
• Publication Date: 1978

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00683187
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM