Combustion Chamber Construction with Dual Mixing Regions for Opposed-Piston Engines

摘要

A combustion chamber construction for opposed-piston engines in which fuel is injected from two opposed injectors includes a dual mixing region construction with a respective mixing region for each injector and a coupling region between the two mixing regions through which the mixing regions communicate. In some aspects, the mixing regions are bulbous and are connected by a waist, or tunnel, region that is relatively narrower than the bulbous mixing chambers.

主权项

1. A combustion chamber construction for an opposed-piston engine including at least one cylinder with a bore and longitudinally-separated exhaust and intake ports formed therein and a pair of pistons disposed in opposition to one another in a bore of the cylinder, in which:
the pistons have shaped end surfaces that form a combustion chamber having an injection axis, dual mixing regions disposed along the injection axis, a narrowed coupling region aligned with the injection axis and disposed between the mixing regions through which the mixing regions communicate, and injection ports located on the injection axis through which fuel is injected into the mixing regions; and, the cylinder includes a pair of opposed fuel injector ports with which the injection ports of the combustion chamber align when the pistons are near the respective top center positions.