公开(公告)号：US20200095923A1

公开(公告)日：2020-03-26

申请号：US16088402

申请日：2017-07-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Hirokazu HASEGAWA ,  Keishi KITABATAKE ,  Taku KURAMASHI ,  Ryotaro NISHIDA ,  Mitsunori WASADA ,  Takeshi NAKAHIRA ,  Yuji KOJIMA ,  Amane TSUDA

IPC: F02B39/04 ,  F02B39/02 ,  F02B39/10 ,  F02B37/00 ,  F02D23/00 ,  F02M26/06 ,  F01N3/033

Abstract: An intake and exhaust device (1) for a vehicle engine is capable to perform a compression self-ignition operation, the device comprising on an intake passage a supercharger (9) driven by a force other than an exhaust gas, wherein an exhaust purification device (18) disposed on an exhaust passage is disposed adjacent to an outer surface of the engine (2).

公开(公告)号：US20210262420A1

公开(公告)日：2021-08-26

申请号：US17261551

申请日：2019-06-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Jiro KATO ,  Taketoshi YAMAUCHI ,  Mitsunori WASADA ,  Ken YOSHIDA ,  Kenji TAKAMI ,  Ryo YAMAMOTO ,  Haruna YANAGIDA ,  Masayoshi HIGASHIO ,  Kensuke ASHIKAGA

IPC: F02M26/21 ,  F02M26/19 ,  F02M26/67 ,  F02M26/09 ,  F02B37/16

Abstract: An exhaust gas recirculation (EGR) passage is connected with an intake passage (a bypass passage bypassing a supercharger) of an engine. The EGR passage includes, in a position close to a connection port to the intake passage, an expanding portion in which a passage cross-sectional area expands and which lowers a flow speed of EGR gas so as to reduce an uneven flow, in the connection port, of the EGR gas flowing into the intake passage.

公开(公告)号：US20170167360A1

公开(公告)日：2017-06-15

申请号：US15361511

申请日：2016-11-28

Applicant: MAZDA MOTOR CORPORATION

Inventor： Mitsunori WASADA ,  Tsuyoshi YAMAMOTO ,  Yasushi NAKAHARA ,  Takashi YOUSO ,  Hiroaki ABE ,  Takaaki NAGANO ,  Atsushi INOUE ,  Kazuhiro NAGATSU ,  Takashi KAMINAGA ,  Tatsuya FUJIKAWA

IPC: F02B23/10 ,  H01T13/20 ,  F02F1/24 ,  F02P15/02 ,  F02F3/28

CPC classification number: F02B23/101 ,  F02B2023/085 ,  F02F1/242 ,  F02F3/285 ,  F02P15/02 ,  H01T13/20 ,  Y02T10/125

Abstract: Injection of the fuel by the injector 43 creates a gas flow in the combustion chamber. The gas expands in a radial fashion from an axis of a cylinder toward a radial outside of the cylinder, and then flows from the radial outside along the cylinder head bottom face 221 toward the axis of the cylinder. The spark plug 41 has a gap positioned away from the axis of the cylinder toward the radial outside of the cylinder at a predetermined distance, and placed radially inwardly from a position opposite a rim of an opening of the cavity 242. A side electrode extends to be oriented in a direction perpendicular to the flow of the gas along the cylinder head bottom face. The gap has a center positioned near the cylinder head bottom face, and closer to an interior of a combustion chamber than to the cylinder head bottom face.