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:
Jan. 03, 2017
Filed:
Mar. 04, 2013
Minoru Kawasaki, Toyota, JP;
Kazuhito Sakai, Mishima, JP;
Shintaro Utsumi, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A cylinder block () includes an inter-bore flow passage () between adjacent bores (). Each inter-bore flow passage () is formed by closing an opening-side groove portion () continuous from a cylinder block deck face and a bottom-side groove portion () with the use of a lid member () made of copper, and the lid member (is laser-welded to a groove wall face of the opening-side groove portion (). Before the laser-welding, the lid member () has recesses () that are interspersed in a direction, in which a laser beam travels, at any one of connected portions at which the lid member (is connected to the groove wall face of the opening-side groove portion ().