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:
Aug. 04, 1987
Filed:
Dec. 11, 1985
Takeo Arai, Saitama, JP;
Nobuo Anno, Saitama, JP;
Yusuke Kinoshita, Saitama, JP;
Yukio Kusakabe, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A cylinder block and head assembly for use in an internal combustion engine includes a closed-deck cylinder block having a deck and a water jacket, a cylinder head mounted on the deck and having a water jacket, and a gasket interposed between the cylinder block and the cylinder head. Communication passages are defined in the cylinder block, the cylinder head, and the gasket and provide communication between the water jackets in the cylinder block and the cylinder head. Recesses are defined adjacent to the communication passages and between the cylinder block and the cylinder head for increasing the pressure on the surfaces of the gasket between the cylinder block and the cylinder head through a reduction in the area of contact between the gasket surfaces and the cylinder block and head. In alternate embodiments the gasket or the cylinder block has holes providing communication between the recesses and the communication passages. Since the pressure on the gasket is increased per unit area, the gasket is highly effective in preventing a cooling liquid or oil from leaking out from between the cylinder block and the cylinder head.