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:
Feb. 23, 2016
Filed:
Aug. 12, 2013
Mazda Motor Corporation, Hiroshima, JP;
Tadatomo Toda, Hiroshima, JP;
Mitsunori Wasada, Hiroshima, JP;
Tadasu Hashiguchi, Hiroshima, JP;
Takashi Youso, Hiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The axial line of an intake valve is inclined, and a gap between a piston crown surface and a valve head of the intake valve expands in accordance with the approach of the crankshaft axis. A relationship of G>Gis fulfilled, where Gstands for a minimum gap between the lower surface of the cylinder head that is positioned between the intake valve and the exhaust valve facing the intake valve, with the crankshaft axis being interposed therebetween, and the piston crown surface in a top dead center, and Gstands for a gap at a position that is the closest to the crankshaft axis, from among the gaps between the lower surface of the valve head of the intake valve and the piston crown surface at a center timing of a valve overlap period in which the intake valve and the exhaust valve are both open.