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.
Patent No.:
Date of Patent:
Nov. 09, 1999
Filed:
Jun. 12, 1998
Peter E Jackson, Columbus, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
A replaceable cylinder liner for an internal combustion engine having a liner stop positioned within a cylinder cavity at a point intermediate the extremes of travel of a piston disposed for reciprocating travel within the cylinder cavity. The liner includes a hollow cylinder body having an inner end portion and an outer end portion. The liner further includes a liner support for axially supporting the hollow cylindrical body within the cylinder cavity with the liner support including a liner stop engaging surface for engaging the liner stop when the liner is placed within the cylinder cavity. Formed in an outside surface of the outer end portion between the end boss and liner support is an annular recess extending over substantially an entire length of the outer end portion to form a liner coolant passage when the liner is positioned in the cylinder cavity. Additionally, provided within the recess is a plurality of thickened regions or lands circumferentially spaced about an outside surface of the outer end portion. Each of the lands frictionally engages the inside surface of the cylinder cavity in that the lands include an effective outside diameter which slightly greater than an inside diameter of corresponding portions of the cylinder cavity into which the plurality of the thickened regions are press fitted.