Piston Rings for IC Engines - Part III : Keystone Rings from 82 up to 200 mm Nominal Diameter T-rings 15°

This technical specification outlines the requirements for tapered piston rings, specifically designated as T-type segments with a 15-degree inclination. The scope of this document covers rings with nominal diameters ranging from 82 millimeters to 200 millimeters, designed for use within internal combustion engines. It establishes the dimensional parameters and geometric tolerances necessary to ensure proper fit and function within the corresponding cylinder bores of engines falling within the specified size range. The document details the profile characteristics, including the specific taper angle and cross-sectional geometry, which are critical for maintaining adequate oil control and minimizing gas leakage during operation. It serves as a reference for manufacturers and engineers involved in the production or specification of engine components to ensure compatibility and performance consistency. The guidelines address the physical attributes required for these segments to perform effectively under the thermal and mechanical stresses typical of engine environments. By adhering to these established measurements, components can be produced to meet the functional demands of various internal combustion applications within the defined diameter limits.