The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2024

Filed:

Oct. 08, 2021
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Robert G. Sperry, Columbus, IN (US);

Jordan E. Kelleher, Columbus, IN (US);

Jeffrey A. Wheitner, Columbus, IN (US);

Jeffrey D. Olmstead, Columbus, IN (US);

Myron T. Rickard, Seymour, IN (US);

David J. Eckroth, Columbus, IN (US);

Assignees:

Cummins Inc., Columbus, IN (US);

ACHATES POWER INC., San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 1/22 (2006.01); F02B 75/28 (2006.01); F02B 75/02 (2006.01);
U.S. Cl.
CPC ...
F02F 1/22 (2013.01); F02B 75/28 (2013.01); F02B 2075/025 (2013.01); F02F 2200/06 (2013.01);
Abstract

A method for finishing at least one port within a cylinder of a two-stroke engine, comprising tracing a curvature of an existing port hole for the at least one port using a force sensing tool, wherein forming an engine block for a two-stroke engine, comprising: casting the engine block, wherein the cast engine block includes at least one intake port and at least one exhaust port; rough machining a cylinder of the engine block, wherein at least one of the at least one intake port and the at least one exhaust port is positioned along a wall of the cylinder and both of the at least one intake port and the at least one exhaust port are fluidly coupled to the cylinder; and finishing an edge of at least one of the at least one intake port and the at least one exhaust port to provide a smooth surface.


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