High Temperature Engine Component Exploratory Design Development 890296
Significant progress has been achieved in the development of advanced high-temperature, insulated, in-cylinder components for high-power-output miliraty diesel engines. Computer aided modeling and small-bore engine component testing have both been utilized extensively during the exploratory development process. Specific insulated optimal designs for the piston, cylinder headface, and cylinder liner have been identified. The designs all utilize thermal barrier coatings, titanium alloy, and interfacial air-gaps to provide thermal resistance.
Finite element modeling including diesel cycle simulation has been utilized to screen and optimize material and design concepts relative to program objectives, while small-bore engine testing has been utilized to demonstrate component integrity.
An improved slurry densified thermal barrier coating has been demonstrated by testing on a high temperature small-bore engine. Titanium Alloy and Steel pistons were coated with various 1.25 mm thick thermal sprayed zirconia coatings. All of the coatings experienced failure by cracking except for the slurry densified coating.
Citation: Bryzik, W., Woods, M., Schwarz, E., and Glance, P., "High Temperature Engine Component Exploratory Design Development," SAE Technical Paper 890296, 1989, https://doi.org/10.4271/890296. Download Citation
Author(s):
Walter Bryzik, Melvin E. Woods, Ernest Schwarz, Paul Glance
Pages: 16
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Worldwide Progress on Adiabatic Engines-SP-0785, SAE Transactions Journal of Engines-V98-3
Related Topics:
Engine components
Diesel / compression ignition engines
Titanium alloys
Computer simulation
Pistons
Engine cylinders
Coatings, colorants, and finishes
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