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公开(公告)号：US09920722B2
公开(公告)日：2018-03-20
申请号：US14882935
申请日：2015-10-14
Applicant: MAZDA MOTOR CORPORATION
Inventor： Fusatoshi Tanaka , Mikiko Kojo , Motoo Hayakawa , Shigehiro Sakogawa , Hitoshi Hongou , Norifumi Irie
IPC: F02M35/00 , F02M35/108 , F02B27/00 , F02M35/10 , F02B27/04
CPC classification number: F02M35/108 , F02B27/006 , F02B27/04 , F02M35/10072 , F02M35/10078 , Y02T10/14 , Y02T10/146
Abstract: An intake system of an engine includes an engine and an intake manifold. The intake manifold defines individual intake air passageways each connecting one of cylinders to a volume chamber. Each of the individual intake passageways includes a first route and a second route. The first route has a natural frequency, of an air column, synchronized with a first revolution higher than an engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the first revolution. The second route has a natural frequency, of an air column, synchronized with a second revolution higher than the engine revolution for maximum torque such that a dynamic supercharging effect is obtained at the second revolution. The second revolution differs from the first revolution. A difference between the first and second revolutions is set lower than or equal to 15% of a maximum engine revolution.
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2.发明申请公开(公告)号：US20190136805A1
公开(公告)日：2019-05-09
申请号：US16178876
申请日：2018-11-02
Applicant: Mazda Motor Corporation
Inventor： Fusatoshi Tanaka , Kazuki Onishi , Takuya Yamada , Ryo Yamamoto , Kazuhiro Nakamura
IPC: F02M35/10 , F02M35/108 , F02M26/19
CPC classification number: F02M35/10222 , F02M25/06 , F02M26/19 , F02M26/41 , F02M35/10026 , F02M35/10039 , F02M35/10045 , F02M35/10085 , F02M35/10255 , F02M35/104 , F02M35/108 , F02M35/112
Abstract: An air intake apparatus of a multi-cylinder engine includes an intake air inlet passage, an intake air distribution portion, a plurality of independent intake air passages, and a secondary gas inlet passage. The intake air inlet passage has one end portion attached to a throttle valve, and the other end connected to an intake air distribution portion. The intake air distribution portion has a space therein. The secondary gas inlet passage is connected at a part spaced apart, in the intake air inlet passage, from the throttle valve. The intake air distribution portion has a reflux passage which is a passage that connects the space and a part between the one end portion and the other end in the intake air inlet passage. The reflux passage is a passage which refluxes fresh air and secondary gas introduced from the intake air inlet passage to the intake air inlet passage.
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公开(公告)号：US20220128019A1
公开(公告)日：2022-04-28
申请号：US17451600
申请日：2021-10-20
Applicant: Mazda Motor Corporation
Inventor： Tomonori Nishida , Yuji Kojima , Noriaki Fujita , Ken Yoshida , Takashi Kariya , Takayuki Tominaga , Naoya Matsumoto , Yusaku Matsumura , Yuki Koda , Takuya Nishihara , Hiroyuki Ohmura , Arashi Imura , Fusatoshi Tanaka , Takuya Yamada , Shintaro Umesaki
Abstract: An exhaust gas recirculation system for a multi-cylinder engine is provided, which includes an exhaust manifold connected to a cylinder head, a catalyst connected to a downstream end of the exhaust manifold in terms of an exhaust gas flow, an EGR gas outlet provided downstream of the catalyst, an in-head EGR passage penetrating the cylinder head, and an EGR pipe extending from the EGR gas outlet and directly connected to an inlet of the in-head EGR passage to lead EGR gas thereto. The catalyst is disposed so that the exhaust gas flows therein from a first side to a second side in an engine cylinder lined-up direction. The EGR gas outlet is located on the second side with respect to the center of the engine in the cylinder lined-up direction, and the inlet of the in-head EGR passage is located in the first side with respect to the engine center.
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公开(公告)号：US10550804B2
公开(公告)日：2020-02-04
申请号：US16178876
申请日：2018-11-02
Applicant: Mazda Motor Corporation
Inventor： Fusatoshi Tanaka , Kazuki Onishi , Takuya Yamada , Ryo Yamamoto , Kazuhiro Nakamura
IPC: F02M35/10 , F02M26/19 , F02M26/41 , F02M35/104 , F02M25/06 , F02M35/108 , F02M35/112
Abstract: An air intake apparatus of a multi-cylinder engine includes an intake air inlet passage, an intake air distribution portion, a plurality of independent intake air passages, and a secondary gas inlet passage. The intake air inlet passage has one end portion attached to a throttle valve, and the other end connected to an intake air distribution portion. The intake air distribution portion has a space therein. The secondary gas inlet passage is connected at a part spaced apart, in the intake air inlet passage, from the throttle valve. The intake air distribution portion has a reflux passage which is a passage that connects the space and a part between the one end portion and the other end in the intake air inlet passage. The reflux passage is a passage which refluxes fresh air and secondary gas introduced from the intake air inlet passage to the intake air inlet passage.
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公开(公告)号：US09726124B2
公开(公告)日：2017-08-08
申请号：US14824860
申请日：2015-08-12
Applicant: Mazda Motor Corporation
Inventor： Fusatoshi Tanaka , Mikiko Kojo , Kazuo Iwata , Tatsunori Kiyomihara
CPC classification number: F02M35/10222 , F02M25/0836 , F02M35/10065 , F02M35/10321
Abstract: A structure of an intake manifold (1) for an engine is constituted of divided pieces (10, 20, 30). The structure of the intake manifold includes a gas supply hole (53) formed in a predetermined position of an outer surface of the intake manifold, and configured to supply predetermined gas from the outside, and a gas inlet passage (51) formed in predetermined joint surfaces (10m, 20m) of the divided pieces (10, 20), and configured to guide the gas supplied through the gas supply hole to a predetermined gas inlet position (11) of an intake passage (E1).
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Patent Agency Ranking
公开(公告)号：US20200063641A1
公开(公告)日：2020-02-27
申请号：US16344103
申请日：2017-10-25
Applicant: Mazda Motor Corporation
Inventor： Fusatoshi Tanaka , Takao Kadoishi , Nozomu Hachiya
Abstract: An intake device for a multi-cylinder engine includes an intake manifold, an intercooler, and a heat insulation member. The intake manifold has an intercooler housing that is a cylindrical body formed from a resin material and internally accommodates the intercooler; and an intake air distributor that is a cylindrical body formed of a metal material and has one opening connected to one opening of the intercooler housing, the intake air distributor distributing an intake air. The heat insulation member is interposed between another opening of the intake air distributor and the cylinder head in the multi-cylinder engine.
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公开(公告)号：US20150184581A1
公开(公告)日：2015-07-02
申请号：US14562516
申请日：2014-12-05
Applicant: Mazda Motor Corporation
Inventor： Tatsuro Nakasugi , Fusatoshi Tanaka , Takao Kadoishi , Nozomu Hachiya
CPC classification number: F02B29/0468 , F02M25/06 , F02M26/05 , F02M26/06 , F02M35/10268 , Y02T10/146
Abstract: An intake system for an engine is provided. The system includes a chamber room formed in an intermediate section of an intake passage, an intercooler disposed inside the chamber room, an intake air inlet chamber formed in a part of the chamber room upstream of the intercooler, an introducing portion for introducing intake air into the intake air inlet chamber, and a baffle plate dividing the intake air inlet chamber into an upstream space communicating with the introducing portion and a downstream space communicating to the introducing portion via the upstream space. When the engine is in a low engine load operation, the intake air mainly flows through the upstream space to an intercooler side via the baffle plate, and when the engine is in a high engine load operation, the intake air flows through the upstream and downstream spaces to the intercooler side via the baffle plate.
Abstract translation: 提供一种用于发动机的进气系统。 该系统包括形成在进气通道的中间部分中的室室，设置在室室内的中间冷却器，形成在中间冷却器上游的室室的一部分中的进气入口室，用于将进气引入的引入部分 进气入口室和将进气室分隔成与导入部连通的上游空间的挡板和经由上游空间连通到导入部的下游空间。 当发动机处于低发动机负荷运转时，吸入空气主要经由挡板流经上游空间至中间冷却器侧，当发动机处于高发动机负荷运转时，进气通过上游和下游 通过挡板到中间冷却器侧的空间。
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公开(公告)号：US08671919B2
公开(公告)日：2014-03-18
申请号：US13737765
申请日：2013-01-09
Applicant: Mazda Motor Corporation
Inventor： Tatsuro Nakasugi , Fusatoshi Tanaka , Takao Kadoishi , Nozomu Hachiya
IPC: F02B33/00
CPC classification number: F02B29/0437 , F02B29/0462 , F02B29/0475 , F02M26/00 , F02M35/10222 , F02M35/10268 , F02M35/10321 , Y02T10/146
Abstract: An intake device of an engine comprises an intake manifold of a four-cylinder inline engine and a water-cooling type of intercooler. The intake manifold includes a downstream branch pipe portion connecting to cylinders, a chamber portion connecting to the downstream branch pipe portion, and an upstream intake pipe portion connecting to the chamber portion. A rectangular opening portion having a vertically-long shape is formed at the upstream intake pipe portion. The intercooler includes an intercooler body portion having a pair of faces which has the widest face-area and faces to each other in an engine width direction. The intercooler body portion is installed in the chamber portion, by being inserted through the rectangular opening portion, so as to divide an inside of the chamber portion into two parts in the engine width direction thereby.
Abstract translation: 发动机的进气装置包括四缸直列式发动机的进气歧管和水冷式中间冷却器。 进气歧管包括连接到气缸的下游分支管部分，连接到下游分支管部分的室部分和连接到室部分的上游进料管部分。 在上游侧进气管部形成有长方形的长方形的开口部。 中间冷却器包括中间冷却器主体部分，其具有在发动机宽度方向上具有最宽面积并彼此面对的一对面。 中间冷却器主体部分通过插入通过矩形开口部分而安装在腔室部分中，以便将腔室部分的内部沿发动机宽度方向分成两部分。
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公开(公告)号：US11499509B2
公开(公告)日：2022-11-15
申请号：US17451600
申请日：2021-10-20
Applicant: Mazda Motor Corporation
Inventor： Tomonori Nishida , Yuji Kojima , Noriaki Fujita , Ken Yoshida , Takashi Kariya , Takayuki Tominaga , Naoya Matsumoto , Yusaku Matsumura , Yuki Koda , Takuya Nishihara , Hiroyuki Ohmura , Arashi Imura , Fusatoshi Tanaka , Takuya Yamada , Shintaro Umesaki
IPC: F02M26/14 , F02M26/01 , F02M26/22 , F01N13/10 , F01N13/14 , F01N13/18 , F02B75/02 , F02B75/20 , F02M26/15 , F02M26/41 , F02M26/23 , F02M26/18 , F02B75/18
Abstract: An exhaust gas recirculation system for a multi-cylinder engine is provided, which includes an exhaust manifold connected to a cylinder head, a catalyst connected to a downstream end of the exhaust manifold in terms of an exhaust gas flow, an EGR gas outlet provided downstream of the catalyst, an in-head EGR passage penetrating the cylinder head, and an EGR pipe extending from the EGR gas outlet and directly connected to an inlet of the in-head EGR passage to lead EGR gas thereto. The catalyst is disposed so that the exhaust gas flows therein from a first side to a second side in an engine cylinder lined-up direction. The EGR gas outlet is located on the second side with respect to the center of the engine in the cylinder lined-up direction, and the inlet of the in-head EGR passage is located in the first side with respect to the engine center.
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公开(公告)号：US09926895B2
公开(公告)日：2018-03-27
申请号：US14950162
申请日：2015-11-24
Applicant: MAZDA MOTOR CORPORATION
Inventor： Daiki Sudo , Takao Kadoishi , Fusatoshi Tanaka
IPC: F02M35/104 , F02M35/10 , F02M35/16 , B60K13/02 , B60K5/04
CPC classification number: F02M35/104 , B60K5/04 , B60K13/02 , B60Y2306/01 , F02M35/10216 , F02M35/10314 , F02M35/10321 , F02M35/10347 , F02M35/1036 , F02M35/161
Abstract: Disclosed is an intake apparatus for an engine transversely mounted within an engine compartment at a front of a vehicle. The intake apparatus comprises: an intake manifold made of a synthetic resin and disposed on a front side of the engine, the engine front side being a front side of the vehicle; and a fuel distribution pipe disposed between the engine and the intake manifold to extend in the cylinder row direction and capable of delivering fuel to respective cylinders of the engine; wherein the intake manifold has a protruding portion provided on a front surface thereof to protrude from the front surface in a vehicle forward direction, wherein the protruding portion is provided at a position capable of allowing a member disposed in front of the intake manifold to come into collision therewith in the event of a vehicle frontal collision.
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