The philosophy behind the development of the Doxford Seahorse Engine is that there is a definite size of diesel engine associated with the minimum cost of power production. The design is an attempt to create an engine of optimal efficiency through the proper use of cost and power production factors. The factors which must be considered are the air flow in the engine, power potential, piston speed, supercharging, fuel costs, and lubrication oil costs. The air flow is of prime importance because the power for propulsion results from the spontaneous combustions of atomized hydrocarbon fuel in compressed air. Engines with poor breathing ability have low piston speed and vice versa. Power potential is determined by piston speed and b.m.e.p. By increasing piston speed, power output is increased up to a point. Supercharging significantly increases power output. Fuel costs are of major importance in obtaining optimal engine efficiency. Low cost fuels contain high percentages of lube oil contaminants and can't be used unless the crank case is isolated from the products of combustion. The Doxford Seahorse Engine is a 2500 b.h.p. oppossed piston crosshead engine which operates at 300 rev/min. The engine has been developed after consideration and evaluation of the above stated factors of cost and power production.

  • Availability:
  • Corporate Authors:

    Engineering, Chemical and Marine Press, Limited

    33-39 Bowling Green Lane
    London EC1P 1AH,   England 
  • Authors:
    • Crowdy, E P
  • Publication Date: 1971-9-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00028791
  • Record Type: Publication
  • Source Agency: United States Merchant Marine Academy
  • Files: TRIS
  • Created Date: Apr 21 1973 12:00AM