Engine component wear rate on diesels equipped with an oil cleaning centrifuge

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:5778160

Bowen, A D; Rodibaugh, S A

Effective control of lube oil contaminants is rapidly becoming of critical concern to diesel engine manufacturers. The key force creating this concern is engine design changes resulting from more restrictive diesel emissions regulations. As a result of these changes, more contaminants from combustion as well as those from component wear are being retained in the crankcase, severely challenging oil additive and engine durability. In this study, two identical 2.0 l;iter direct-injection turbocharged diesel engines were repetitively loaded through a 120 minute maximum-torque, maximum-power, maximum-speed cycle, and wear was accelerated by a forced injection of Air Cleaner Fine Test Dust (AC Spark Plug Division, GMC) into the lubrication circuit. The baseline design engine used the standard factory-equipped lube filter while the other was equipped with a block-mounted bypass oil cleaning centrifuge in addition to the standard full-flow filter. On-line data-acquisition equipment monitored wear-related performance characteristics. After-test measurements compared total wear and surface profiles on seven engine components over the 150 hour test. Test results show dramatic reductions in piston ring blow-by and component wear through application of the centrifuge oil cleaner.

• OSTI ID: 5778160
• Report Number(s): CONF-9010205--
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
CONTAMINATION
DATA ACQUISITION
DESIGN
DIESEL ENGINES
EMISSION
ENGINES
FILTERS
HEAT ENGINES
INJECTION
INTAKE
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE
PETROLEUM PRODUCTS
PISTONS
TRUCKS
VEHICLES