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. 09, 2007
Filed:
Mar. 18, 2005
Takashi Matsutani, Toyota, JP;
Takanori Nakada, Toyota, JP;
Yoshikazu Shinpo, Nisshin, JP;
Makoto Hatano, Obu, JP;
Takashi Kubota, Obu, JP;
Takashi Matsutani, Toyota, JP;
Takanori Nakada, Toyota, JP;
Yoshikazu Shinpo, Nisshin, JP;
Makoto Hatano, Obu, JP;
Takashi Kubota, Obu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Aisan Kogyo Kabushiki Kaisha, Obu-shi, JP;
Abstract
A cooling structure for uniformly cooling a bore wall of a cylinder block using a cooling medium, the bore wall surrounding plural bore regions, includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall, and which is supplied with the cooling medium; and a water jacket spacer which is inserted in the water jacket portion such that a space is provided between the bore wall and the water jacket spacer. The cylinder block includes an inter-bore region which is positioned in a vicinity of a boundary between the bore regions adjacent to each other, and a region other than the inter-bore region; and a cross sectional area of the space between the bore wall and the water jacket spacer in the inter-bore region is smaller than a cross sectional area of the space between the bore wall and the water jacket spacer in the region other than the inter-bore region.