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:
Jul. 23, 1985
Filed:
Dec. 20, 1983
Akinori Wakasa, Hiroshima, JP;
Mazda Motor Corporation, , JP;
Abstract
A cylinder head to be mounted on a cylinder block for a multiple-cylinder in-line engine has an intake port and an exhaust port for each cylinder bore of the cylinder block, water jackets surrounding the intake ports and the exhaust ports, and a plurality of bolt holes for receiving head bolts for fixing the cylinder head to the cylinder block. The bolt holes are in the form of through-holes formed through boss portions which are disposed in the four corners and on a pair of opposed side portions of the cylinder head. The boss portions on the side portions are in positions corresponding to the 'interbore' portions between adjacent cylinder bores of the cylinder block. The upper portions of each pair of boss portions laterally opposed to each other along the corresponding interbore portion are connected by a top deck extending above the interbore portion. The central portion of each top deck is connected with wall portions defining the intake port and the exhaust port on opposite sides of the top deck by way of a pair of reinforcing ribs.