Accession Number:

ADA247927

Title:

The Relationship between Fuel Lubricity and Diesel Injection System Wear

Descriptive Note:

Interim rept 1 Sep 1990-1 Nov 1991,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TX BELVOIR FUELS AND LUBRICANTS RESEARCH FACILITY

Personal Author(s):

• Lacy, Paul I.

Report Date:

1992-01-01

Pagination or Media Count:

127.0

Abstract:

Use of low-lubricity fuel may have contributed to increased failure rates associated with critical fuel injection equipment during the 1991 Operation Desert Storm. However, accurate quantitative analysis of failed components from the field is almost impossible due to the unique service history of each pump. This report details the results of pump stand tests with fuels of equal viscosity, but widely different lubricity. Baseline tests were also performed using Reference No. 2 diesel fuel. Use of poor lubricity fuel under these controlled conditions was found to greatly reduce both pump durability and engine performance. However, both improved metallurgy and fuel lubricity additives significantly reduced wear. Good correlation was obtained between standard bench tests and lightly loaded pump components. However, high contact loads on isolated components produced a more severe wear mechanism that is not well reflected by the Ball-on-Cylinder Lubricity Evaluator.

Descriptors:

• *CONTROL
• INJECTION
• QUANTITATIVE ANALYSIS
• HIGH RATE
• PERFORMANCE(ENGINEERING)
• INTENSITY
• CRITICAL ASSEMBLIES
• FAILURE
• ISOLATION
• RATES
• TEST METHODS
• ACCURACY
• REDUCTION
• FUELS
• BASE LINES
• WEAR
• HISTORY
• LOW LEVEL
• STANDARDIZATION
• ENGINES
• ADDITIVES
• VISCOSITY
• LUBRICATION
• METALLURGY
• BENCH TESTS
• FUEL INJECTION
• PUMP COMPONENTS
• DIESEL ENGINES

Subject Categories:

• Pumps, Filters, Pipes, Tubing, Fittings and Valves
• Fuels
• Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE