公开(公告)号：US20220381206A1

公开(公告)日：2022-12-01

申请号：US17744925

申请日：2022-05-16

Applicant: MAZDA MOTOR CORPORATION

Inventor： Masayuki FURUTANI ,  Akira ICHIGI ,  Masahiro NISHIOKA ,  Takuya YAMADA

IPC: F02M35/104 ,  F02M35/10

Abstract: 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.

公开(公告)号：US20220381208A1

公开(公告)日：2022-12-01

申请号：US17744997

申请日：2022-05-16

Applicant: MAZDA MOTOR CORPORATION

Inventor： Masayuki FURUTANI ,  Akira ICHIGI ,  Masahiro NISHIOKA ,  Takuya YAMADA

IPC: F02M35/10 ,  F02M35/112

Abstract: 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 the intake manifold, and the fuel pipe is arranged on the rear side of the intake manifold. The intake manifold includes a plurality of independent intake pipe portions arranged side by side in the vehicle front-rear direction which branch for each of the cylinders of the engine; and a plurality of coupling portions that each couple adjacent independent intake pipe portions to each other in an integral manner A first coupling portion of the plurality of coupling portions positioned on the frontmost side has a lower rigidity than a third coupling portion of the plurality of coupling portions positioned the rearmost side.

公开(公告)号：US20220381207A1

公开(公告)日：2022-12-01

申请号：US17745355

申请日：2022-05-16

Applicant: MAZDA MOTOR CORPORATION

Inventor： Masayuki FURUTANI ,  Takuya YAMADA

IPC: F02M35/104 ,  F02M35/10

Abstract: 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.

公开(公告)号：US20210222653A1

公开(公告)日：2021-07-22

申请号：US17093320

申请日：2020-11-09

Applicant: MAZDA MOTOR CORPORATION

Inventor： Yoshihiro HAMAZUME ,  Takashi YOSHIKAWA ,  Jiro KATO ,  Taketoshi YAMAUCHI ,  Hirofumi SHINOHARA ,  Kazuhiro NAKAMURA ,  Yoko INAMI ,  Shouichi AIGA ,  Tomoaki FUJIYAMA ,  Kosuke MIYAMOTO ,  Takuya YAMADA

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

Abstract: 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.

公开(公告)号：US20210033050A1

公开(公告)日：2021-02-04

申请号：US16934035

申请日：2020-07-21

Applicant: Mazda Motor Corporation

Inventor： Yusuke ODA ,  Tomomi WATANABE ,  Junsou SASAKI ,  Yuichiro TANAKA ,  Takuya YAMADA

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

Abstract: 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.