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:
Sep. 05, 2006
Filed:
Oct. 20, 2004
Applicants:
Kenji Yageta, Tochigi-ken, JP;
Shigeki Nakabayashi, Ise, JP;
Inventors:
Kenji Yageta, Tochigi-ken, JP;
Shigeki Nakabayashi, Ise, JP;
Assignees:
Nissan Motor Co., Ltd., Yokohama, JP;
Aichi Machine Industry Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A partition plate (tumble plate) for an intake port is previously placed in an intake port molding sand core (port core) for forming an intake port of a cylinder head, and cast-in as the cylinder head is cast-molded, to partition the intake port into a plurality of ports. The partition plate is provided with shift preventing portion that prevent positional shift relative to the intake port molding sand core.