High-Temperature Lubricants for Minimum-Cooled Diesel Engines

Abstract

Lubricant performance at high temperatures was defined using an uncooled single-cylinder diesel engine operated at conditions which simulate a minimum-cooled/adiabatic diesel engine. The following lubricant-related problems were observed: Lubricant oxidation--oil too thick to pump; corrosive products formed and bearings attacked; Lubricant volatility--high oil consumption, oil thickening, and Engine deposits--ring sticking. A variety of high-temperature candidate lubricants was evaluated in the uncooled single-cylinder diesel engine. While these two oils had the best overall high-temperature performance of the candidates tested, they were still deficient in oxidation stability/oil thickening properties. High-pressure differential scanning calorimetry (HPDSC) and FTM5308 were investigated for use as high-temperature lubricant bench screening methods. Neither method was completely satisfactory, and additional development of a bench oxidation screening technique is needed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1983
Accession Number
ADA142426

Entities

People

  • E. A. Frame

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Diesel Fuels
  • Flash Point
  • Friction
  • High Pressure
  • High Temperature
  • Logistics
  • Lubricants
  • Lubrication
  • Materials
  • Military Research
  • Military Vehicles
  • Oils
  • Propulsion Systems
  • Synthetic Oils
  • Test Methods
  • Thermal Propulsion Systems
  • Vehicles

Fields of Study

  • Engineering

Readers

  • Petroleum Engineering