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:
Dec. 03, 1991
Filed:
May. 14, 1991
Shigeki Nakatani, Hiroshima, JP;
Takahiro Idemoto, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A method and device for making a cylinder block includes a plurality of cylinder liners with flange portions respectively arranged side by side and extending in one direction. Each of the cylinder liners being casted together with a light metal to form a cylinder bore of an engine. The method includes the steps of disposing the cylinder liners within a cavity in a side by side relationship with one another with each of the cylinder liners being held by a core for forming the cylinder bore, forming a material holding section above the flange portions of the two cylinder liners adjacent to each other so as to communicate the two cylinder liners with each other therethrough, introducing a molten material of the light metal into the cavity for making the cylinder block, and removing a solidified material of the light metal in the material holding section. A high quality cylinder block product can thus be obtained.