Parent bore cylinder block of an opposed-piston engine
AssigneeAchates Power, Inc.
InventorsAndrew P. Perr, John J. Koszewnik, Gary A. Vrsek
Life of this patent
Estimating the term…
Abstract
A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cooling passages, particularly surrounding the central portions of the cylinders.
Claims5
A casting core for a parent bore cylinder block for an opposed-piston internal combustion engine that includes at least one cylinder including a cylinder bore with a bore surface and a longitudinal axis, a combustion zone in an intermediate portion of each of the at least one cylinder along the longitudinal axis of the cylinder bore, and a cooling jacket surrounding the combustion zone on an outside portion of the at least one cylinder, the casting core comprising:
- at least one sand portion;
- and
- at least one ceramic portion, the at least one ceramic portion configured to produce cooling features enclosed by the cooling jacket on an outer portion of the at least one cylinder in the combustion zone,
- wherein the casting core is formed by 3-D printing.
Dependencies are inferred from the claim text.