HYDRODYNAMIC SPEED REDUCERS FOR SHIP DRIVE. PART A. THE GENERAL PROBLEM OF HYDRODYNAMIC SPEED REDUCERS FOR SHIPS WITH PARTICULAR ATTENTION TO INCREASED RATIOS OF TRANSMISSION. PART B. EXPERIMENTAL INVESTIGATION AND THEORETICAL ANALYSIS OF AN AXIAL FLOW PRIMARY STAGE FOR HYDRODYNAMIC SPEED REDUCERS

Abstract

The investigations revealed that hydrodynamic speed reducers of the Foettinger-transformer type offer a practical way of speed reduction under conditions which render mechanical reduction gears unsatisfactory. The indicated efficiencies of the reducers varied from about 90% at transmission ratios below 5, to about 82 to 85% at transmission ratios above 15. The size and weight of hydrodynamic transmissions appeared to compare favorably with other types of transmissions, particularly at high powers and high speeds.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1953
Accession Number
AD0017397

Entities

People

  • G. F. Wislicenus
  • W. G. Rose

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Angular Momentum
  • Axial Flow
  • Boundary Layer
  • Engineering
  • Engineers
  • Fluid Mechanics
  • Gas Turbines
  • Hydrodynamics
  • Measurement
  • Mechanical Engineering
  • Navy
  • Pressure Distribution
  • Pressure Measurement
  • Static Pressure
  • Test And Evaluation
  • Test Facilities

Readers

  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).