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Trends in technology & Development system

Trends in Technology: Rings

Piston rings are components directly responsible for engine performance, and have progressed along with engines. Each engine manufacturer's most recent engines require further improvements in fuel efficiency, cleaner exhaust, and longer service life because of environmental concerns. Along with these requirements, further lowering friction and improving wear-resistance are required for piston rings. TPR has been moving ahead with the development of low tension rings, narrow-width rings, and a combination of high-quality, high-performance piston ring materials with surface treatment.

Development system

Technical Centre
Technical Centre
TPR's Technical Center was established in 2004 as a hub of technology development for achieving R&D advances to meet future needs.

Experiment-Analysis

Engine Laboratory
Engine Laboratory
TPR maintains the Engine Laboratory to evaluate piston ring performance. Using this laboratory for product development and performance analysis, TPR has earned the solid trust of auto makers.
Observation of oil transport in piston ring pack through a transparent cylinder
Observation of oil transport in piston ring pack through a transparent cylinder
Since reducing friction loss around the piston is a top demand, there has been a tendency for rings to be narrower in width and lower in tension. In this case, an increase in oil consumption becomes an issue. With a transparent glass cylinder, the mechanism can be analyzed.
CAE analysis
CAE analysis
TPR carries out CAE analysis as a tool to support product development and a variety of performance simulations, including structural analysis, thermal analysis, and behavior analysis.

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