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    Engine intake system
    2.
    发明授权
    Engine intake system 有权

    公开(公告)号：US11067042B2

    公开(公告)日：2021-07-20

    申请号：US16934035

    申请日：2020-07-21

    申请人： Mazda Motor Corporation

    发明人： Yusuke Oda ,  Tomomi Watanabe ,  Junsou Sasaki ,  Yuichiro Tanaka ,  Takuya Yamada

    IPC分类号： F02M35/10 ,  F02M26/17 ,  F02D9/08

    摘要： An intake system of an engine supplies gas at least containing fresh air to each cylinder. The system includes an EGR passage that communicates with an internal space of a downstream intake passage and introduces some EGR gas into the downstream intake passage. The EGR passage includes a projected section in a substantially polygonal or cylindrical shape that is projected to the internal space of the downstream intake passage. The projected section is formed in such a shape that a projection length H1 in an outer circumferential surface on an upstream side is longer than a projection length H2 in an outer circumferential surface on a downstream side.

    ENGINE INTAKE SYSTEM
    3.
    发明公开
    ENGINE INTAKE SYSTEM 审中-公开

    公开(公告)号：US20230313767A1

    公开(公告)日：2023-10-05

    申请号：US18188702

    申请日：2023-03-23

    申请人： Mazda Motor Corporation

    发明人： Ken Yoshida ,  Hiroyuki Ohmura ,  Shinsuke Fujita ,  Takuya Yamada ,  Shintaro Umesaki

    IPC分类号： F02M35/112

    CPC分类号： F02M35/112

    摘要： An intake system of an engine including an intake manifold, which includes an intake air introducing pipe and a plurality of independent intake pipes, is provided. Each of the independent intake pipes has an arc shape surrounding the intake air introducing pipe from outside with a space. A first independent intake pipe is curved more in the cylinder lined-up direction than a second. From the side in the cylinder lined-up direction, the arc shape of the second independent intake pipe is more distant from the intake air introducing pipe. To a first member constituting part of the intake air introducing pipe, a second member is joined to form the arc shape of the first independent intake pipe. A third member disposed radially outward from the first member is joined to the second member to form the arc shape of the second independent intake pipe.

    Side structure of engine
    4.
    发明授权
    Side structure of engine 有权

    公开(公告)号：US11560866B2

    公开(公告)日：2023-01-24

    申请号：US17745355

    申请日：2022-05-16

    申请人： MAZDA MOTOR CORPORATION

    发明人： Masayuki Furutani ,  Takuya Yamada

    IPC分类号： F02M35/10 ,  F02M35/104

    摘要： Removal and breakage of fuel piping during a vehicle front collision is prevented for an engine mounted longitudinally in an engine compartment. Embodiments include a side structure of the engine having an alternator in front of an intake manifold and fuel piping behind the intake manifold so as to extend in the vertical direction. The intake manifold includes a plurality of independent intake pipe portions each having one end portion connected to one side of the engine in a vehicle width direction, and a surge tank portion to which the other end portions of the independent intake pipe portions are connected. As seen from the rear side, a portion of the fuel piping closer to the surge tank portion is located closer to the one side of the engine in the vehicle width direction than the surge tank portion.

    Intake manifold structure
    6.
    发明授权
    Intake manifold structure 有权

    公开(公告)号：US11549470B2

    公开(公告)日：2023-01-10

    申请号：US17744925

    申请日：2022-05-16

    申请人： MAZDA MOTOR CORPORATION

    发明人： Masayuki Furutani ,  Akira Ichigi ,  Masahiro Nishioka ,  Takuya Yamada

    IPC分类号： F02M35/10 ,  F02M35/104

    摘要： Interference between an intake manifold and a fuel pipe during a vehicle front collision is prevented in an engine which is longitudinally mounted in an engine room. A vehicle component is arranged on the front side of an intake manifold, and a fuel pipe is arranged on the rear side of the intake manifold. The intake manifold includes a mounting portion on the intake-air downstream end side of a plurality of independent intake pipe portions and connects each of the plurality of independent intake pipe portions to a portion of the engine on one side of the engine in the vehicle width direction. The mounting portion has a front-side mounting portion relatively positioned on the front side and a rear-side mounting portion relatively positioned on the rear side, and the rear-side mounting portion has a higher rigidity than the front-side mounting portion.

    Intake device of engine
    7.
    发明授权
    Intake device of engine 有权

    公开(公告)号：US11280301B2

    公开(公告)日：2022-03-22

    申请号：US17093320

    申请日：2020-11-09

    申请人： MAZDA MOTOR CORPORATION

    发明人： Yoshihiro Hamazume ,  Takashi Yoshikawa ,  Jiro Kato ,  Taketoshi Yamauchi ,  Hirofumi Shinohara ,  Kazuhiro Nakamura ,  Yoko Inami ,  Shouichi Aiga ,  Tomoaki Fujiyama ,  Kosuke Miyamoto ,  Takuya Yamada

    IPC分类号： F02M35/10 ,  F02M26/13 ,  F02M31/20

    摘要： An intake device of an engine comprises an intercooler, an intake passage including a downstream-side intake passage, and an EGR passage recirculating exhaust gas to the downstream-side intake passage. An intake-air supply opening having an opening area smaller than an area of a downstream-side face of an intercooler core is provided at a downstream side wall of a chamber. The downstream-side intake passage includes an extension passage portion extending upwardly along the downstream side wall. The intake-air supply opening includes an upper edge portion which separates the intake air flowing from an inside wall face of the extension passage portion and forms flowing main streams of the intake air inside the extension passage portion. EGR introduction ports are arranged at positions capable of supplying the EGR gas toward the flowing main streams.

    Engine intake system
    8.
    发明授权
    Engine intake system 有权

    公开(公告)号：US11795894B1

    公开(公告)日：2023-10-24

    申请号：US18188702

    申请日：2023-03-23

    申请人： Mazda Motor Corporation

    发明人： Ken Yoshida ,  Hiroyuki Ohmura ,  Shinsuke Fujita ,  Takuya Yamada ,  Shintaro Umesaki

    IPC分类号： F02M35/10 ,  F02M35/104 ,  F02M35/112

    CPC分类号： F02M35/112 ,  F02M35/10111 ,  F02M35/10354

    摘要： An intake system of an engine including an intake manifold, which includes an intake air introducing pipe and a plurality of independent intake pipes, is provided. Each of the independent intake pipes has an arc shape surrounding the intake air introducing pipe from outside with a space. A first independent intake pipe is curved more in the cylinder lined-up direction than a second. From the side in the cylinder lined-up direction, the arc shape of the second independent intake pipe is more distant from the intake air introducing pipe. To a first member constituting part of the intake air introducing pipe, a second member is joined to form the arc shape of the first independent intake pipe. A third member disposed radially outward from the first member is joined to the second member to form the arc shape of the second independent intake pipe.