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:
Apr. 25, 2006
Filed:
Oct. 19, 2004
Hiroshi Katou, Tochigi-ken, JP;
Hirohito Kajihara, Atsugi, JP;
Kenji Yageta, Tochigi-ken, JP;
Toshiyuki Nishida, Matsuzaka, JP;
Masami Inose, Utsunomiya, JP;
Tatsuya Masuta, Saitama, JP;
Hiroshi Katou, Tochigi-ken, JP;
Hirohito Kajihara, Atsugi, JP;
Kenji Yageta, Tochigi-ken, JP;
Toshiyuki Nishida, Matsuzaka, JP;
Masami Inose, Utsunomiya, JP;
Tatsuya Masuta, Saitama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Aichi Machine Industry Co., Ltd., Nagoya, JP;
Abstract
A partition plate for an intake port of a cylinder head to be manufactured by cast molding is preliminarily set prior to the cast molding in a sand core applied to form the intake port and then cast in by the cast molding to partition the intake port into a plurality of ports. The partition plate is provided with an intake-side distal end, a cylinder-side distal end, a pair of side edges continuous with the intake-side distal end and the cylinder-sided distal end and to be cast in by molten metal during the cast molding. Each of the pair of side edges having end faces facing in a thickness direction and a side end face continuous with the end faces. The partition plate is further provided with a promoter section provided on at least one of the side end face and the end faces of each of the pair of side edges to promote solidification of the molten metal.