Coatings for Improving Engine Performance

Roy Kamo; Walter Bryzik; Michael Reid; Melvin Woods

doi:10.4271/970204

1997-02-24

Coatings for Improving Engine Performance 970204

Thermal barrier coatings are becoming increasingly important in providing thermal insulation for heat engine components. Thermal insulation reduces in-cylinder heat transfer from the engine combustion chamber as well as reducing component structural temperatures. Containment of heat also contributes to increased in-cylinder work and offers higher exhaust temperatures for energy recovery. Lower component structural temperatures will result in greater durability. Advanced ceramic composite coatings also offer the unique properties that can provide reductions in friction and wear.

Test results and analysis to evaluate the performance benefits of thin thermal barrier coated components in a single cylinder diesel engine are presented. The procedure includes the performance testing of a reduced cooling partially air gap insulated metal baseline engine, a coated cylinder liner build and a fully insulated build where the cylinder liner, piston top and cylinder headface are coated with a thin thermal barrier ceramic composite material.

Test results indicate that coatings on the cylinder liner bore produced a reduction in fuel consumption while coatings on the piston and cylinder headface surface were more effective in reducing heat rejection.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Coatings for Improving Engine Performance 970204

SAE MOBILUS