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:
Oct. 12, 2021
Filed:
May. 03, 2021
Tpr Co., Ltd., Tokyo, JP;
Tpr Industry Co., Ltd., Yamagata, JP;
TPR Co., Ltd., Tokyo, JP;
IPR Industry Co., Ltd., Yamagata, JP;
Abstract
An object of the present invention is to provide a cylinder liner for insert casting that can improve the joining strength between a cylinder liner and a cylinder block by reducing voids generated between the cylinder liner and the cylinder block. The above-described problem can be solved when the molten metal running index YI defined by the following Formula (1) is from 2.2 to 14.5.Molten metal running index=[area ratio(%) of top portions of protrusions×molten metal infiltration volume(mm)/surface area(mm) of cylinder liner base]/average surface-to-surface distancebetween top portions of protrusions (mm)  (1).