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. 08, 1993
Filed:
Jan. 16, 1992
John W Kuhn, Bristol, IN (US);
Richard J Wylie, Wabash, IN (US);
CMI International, Bristol, IN (US);
Abstract
A casting core (42) for forming a water jacket chamber (28) within a cylinder block (22) includes a bonded sand continuous wall portion (48) for forming a water passage (30) encircling a plurality of the cylinders (24) and through which water is circulated for cooling the perimeter of the cylinders (24). The casting core (42) also includes a bridging portion (46) that extends cross-wise in the wall (48) for forming a thin water passage bypass (32) extending through the thin web of cylinder block material (26) separating the adjacent cylinders (24) for providing cooling between the piston cylinders (24). The bridging portion (46) comprises a metal support element (64) covered by a sleeve of woven refractory material (66). A method is also provided for producing a cylinder block having such a casting core (42).