Browse Publications Technical Papers 970002
1997-02-24

Development of Titanium Nitride Coated Shim for a Direct Acting OHC Engine 970002

In order to meet requirements for lower fuel consumption, we have developed a technique for significantly decreasing valve train friction for a direct acting OHC engine. Droplets of pure titanium generated by the titanium nitride coating process of the shims improves the surface roughness of the cams, which eliminates the need to polish the cams. In an engine with these shims, the surface roughness of the cams is considerably improved within a few minutes of initial operation by the polishing action of the droplets. Valve train friction is greatly reduced by improving the surface roughness of the cams and shims, which results in better fuel economy.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Ford's All New 4.6 Liter SOHC V-8 Engine for the Lincoln Town Car

910680

View Details

TECHNICAL PAPER

The 2-Step VCR Conrod System - Modular System for High Efficiency and Reduced CO2

2017-01-0634

View Details

TECHNICAL PAPER

Friction and Wear Characteristics of TiC Surface Coatings in a Small Two-Stroke Utility Engine

2008-32-0006

View Details

X