Investigation of Wear Mechanisms Occurring in Passenger Car Diesel Engine Inlet Valves and Seat Inserts 1999-01-1216
The aim of this work was to investigate the wear mechanisms occurring in passenger car diesel engine inlet valves and seat inserts using a bench test-rig designed to simulate the loading environment and contact conditions to which the valve and seat are subjected.
The investigation has shown that the valve and seat insert wear problem involves two distinct mechanisms: impact of the valve on the seat insert on valve closing and sliding of the valve on the seat insert under the action of the combustion pressure.
The prevailing wear mechanisms have been shown to be related to critical operating conditions such as valve closing velocity, combustion load and valve misalignment relative to the seat insert and valve and seat insert material choice.
Citation: Lewis, R., Dwyer-Joyce, R., and Josey, G., "Investigation of Wear Mechanisms Occurring in Passenger Car Diesel Engine Inlet Valves and Seat Inserts," SAE Technical Paper 1999-01-1216, 1999, https://doi.org/10.4271/1999-01-1216. Download Citation
Author(s):
R. Lewis, R. S. Dwyer-Joyce, G. Josey
Affiliated:
The University of Sheffield, Department of Mechanical Engineering, UK., Ford Motor Company, Research and Engineering Centre, Laindon, UK.
Pages: 11
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
The Diesel Engine-PT-109, SAE 1999 Transactions - Journal of Fuels and Lubricants-V108-4
Related Topics:
Diesel / compression ignition engines
Valves
Combustion and combustion processes
Wear
Seats and seating
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