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. 21, 2008
Filed:
Sep. 06, 2007
Takanori Nakada, Toyota, JP;
Makoto Hatano, Nagoya, JP;
Takanori Nakada, Toyota, JP;
Makoto Hatano, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisan Kogyo Kabushiki Kaisha, Obu, JP;
Abstract
In a cylinder block of an internal combustion engine, a water jacket in which coolant is circulated is formed around cylinder bores. In the cylinder block, an introduction passage, through which the coolant is introduced from the outside of the water jacket to the inside of the water jacket, is formed. A spacer, which extends along at least a portion of the periphery of the cylinder bores is provided in the water jacket. The spacer is disposed such that the inner wall surface of the spacer contacts the outer wall surfaces of the cylinder bores in an opening-side area of the cylinder block, where an opening of the introduction passage is formed, and the inner wall surface of the spacer does not contact the outer wall surfaces of the cylinder bores in an opposite opening-side area opposite to the opening-side area with respect to the cylinder bores.