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:
Jun. 04, 2019
Filed:
Jun. 08, 2017
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Yasushi Niwa, Higashihiroshima, JP;
Kazuya Niida, Higashihiroshima, JP;
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Abstract
An exhaust device of an engine is provided, which includes an exhaust port formed in a cylinder head and connected to an exhaust aperture of a cylinder, an exhaust manifold disposed on a side surface of the cylinder head and formed with a first exhaust passage, an exhaust path constituting part disposed on a side of the exhaust manifold opposite from the cylinder head, and formed with a second exhaust passage, a catalyst disposed on a downstream side of the exhaust path constituting part, an upstream gasket disposed between the side surface of the cylinder head and an upstream connecting member of the manifold, and a downstream gasket disposed between a downstream connecting member of the manifold and an exhaust-manifold-side connecting member of the exhaust path constituting part. The upstream gasket has a larger thermal resistance in an exhaust gas flow direction than the downstream gasket.