Achates Power, Inc.

Neerav Abani

Ryan G Mackenzie

Fabien G Redon

Clark A Klyza

Rishikesh Venugopal

A combustion chamber for an opposed-piston engine has an elongated asymmetrical shape in longitudinal section that runs along a chamber centerline, between diametrically-opposed openings of the combustion chamber through which fuel is injected. The asymmetry apportions combustion chamber volume to provide additional clearance on a side of the chamber centerline toward which swirl is directed, thereby giving a fuel plume space to swing without hindrance in response to swirl.

Asymmetrically-shaped combustion chamber for opposed-piston engines

In a fuel injection spray pattern for an opposed piston engine, the individual spray plumes have both radial and tangential components with respect to an injection axis (), which adds a swirl component to a spray pattern of fuel directly injected into the combustion chamber of the opposed piston engine.

Fuel injection with swirl spray patterns in opposed-piston engines

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.

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San Diego, CA, United States of America

Neerav Abani