U.S. Coast Guard Pollution Abatement Program - Two-Stroke Cycle Outboard Engine Emissions

Abstract

This report documents the results of emissions tests performed on three old and two new outboard engines. Tests of the emissions were made before and after water contact. Older engines were tested in as-received condition, tuned to factory specifications and retested. After being tuned, these engines showed improvements in emissions and fuel consumption. The new engines with improved ignition and combustion chamber design and crankcase drainage recycling showed less emission and better fuel consumption characteristics than the older engines. The results of these tests were used to calculate the emissions impact of the United States Coast Guard outboard fleet for comparison with the emissions impact of other Coast Guard vessels and vessels in general.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADA019783

Entities

People

  • R. A. Walter

Organizations

  • John A. Volpe National Transportation Systems Center

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Carburetors
  • Coast Guard
  • Combustion
  • Combustion Chambers
  • Computer Programs
  • Control Panels
  • Data Reduction
  • Detectors
  • Dielectric Gases
  • Diesel Engines
  • Fuel Tanks
  • Gases
  • Ignition
  • Measurement
  • Propeller Shafts
  • United States
  • Water Vapor

Fields of Study

  • Environmental science

Readers

  • Internal Combustion Engine (ICE) Technology.
  • Maritime Security/Maritime Homeland Security
  • Petroleum Engineering