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:
May. 08, 1984
Filed:
Nov. 13, 1981
Hironori Bessho, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An internal combustion engine has several cylinders. A construction is provided for the intake system of the engine, including a surge tank with an inlet through which air is admitted, and one intake tube for each cylinder. Each of the intake tubes is defined by a wall, and leads from the surge tank to its cylinder. An upstream part of each intake tube is wrapped around the surge tank and extends along its wall. Desirably, the wall of this wrapped upstream part of each intake tube may in part be constituted by the outer part of the wall of the surge tank. A part of each intake tube downstream of this wrapped upstream part may be wrapped along the wrapped upstream part. Further, the construction may be made from two dish members joined together at their edges, with the surge tank being defined at the inside of the combination by two inner skins of the dish members, while the intake tubes are defined around the surge tank by two outer structures of the dish members and also by the outer surfaces of the two inner skins. The dish members may be formed by casting, and may be fixed together by bolts passed through holes in flanges extending outwardly from their joined edges.