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:
Sep. 23, 2016
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Denso Corporation, Kariya, Aichi, JP;
Takayuki Hikita, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Tomonori Urushihara, Yokohama, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Tatsuya Fujikawa, Higashihiroshima, JP;
Takashi Youso, Hiroshima, JP;
Takaaki Nagano, Higashihiroshima, JP;
Yuuki Kawai, Kariya, JP;
Toshifumi Hayami, Kariya, JP;
MAZDA MOTOR CORPORATION, Aki-Gun, Hiroshima, JP;
DENSO CORPORATION, Kariya, Aichi, JP;
Abstract
An engine includes: a piston including a cavity; a cylinder head configured so as to form a combustion chamber having a pent roof shape; a fuel injection valve configured to inject fuel from a second half of a compression stroke until a first half of an expansion stroke; and a spark plug arranged at a position corresponding to an upper side of the cavity. Injection openings which are arranged in a circumferential direction surrounding a longitudinal axis of the valve and through each of which the fuel is injected in a direction inclined relative to the longitudinal axis by a predetermined angle is formed such that when a height of a ceiling of the combustion chamber at a position corresponding to an edge end portion of the cavity in an injection direction of the injection opening is large, the injection angle of the injection opening is large.