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:
Jun. 16, 1998
Filed:
Jun. 26, 1996
Roger D Sweetland, Columbus, IN (US);
Timothy P Webster, Columbus, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
Manufacture of a liquid cooled cylinder head for an internal combustion engine is described which reduces incidence of casting fins that may block or impede coolant flow through the cylinder head. The head is cast without internal liquid coolant passages to interconnect the first and second cooling cavities. An opening is machined through an outer surface of the head to define a passage interconnecting the first and second cooling cavities to provide for communication of cooling liquid therebetween. The opening formed by machining through the outer surface of the head is closed. Throat area of the the passage may be selected to control coolant exchange between the first and second cooling cavities and additional passages may be machined in each head to provide additional coolant interchange or to vent air from the cooling cavities.