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14 条记录 (耗时 0.014 秒)

    Engine exhaust device
    2.
    发明授权
    Engine exhaust device 有权

    公开(公告)号：US10584655B2

    公开(公告)日：2020-03-10

    申请号：US15763740

    申请日：2017-03-08

    申请人： MAZDA MOTOR CORPORATION

    发明人： Mitsuyuki Murotani ,  Takafumi Nishio ,  Shuhei Tsujita ,  Einosuke Suekuni ,  Junji Umemura

    IPC分类号： F02D41/12 ,  F02B37/02 ,  F02B37/18 ,  F02B37/22 ,  F02D41/00 ,  F02D43/00

    摘要： An exhaust passage 53 includes: a first passage (high-speed passages 24b, 25b, and 26b); and a second passage (low-speed passages 24c, 25c, and 26c). A turbine housing 560 is connected to the exhaust passage 53 downstream from the collector 54. An exhaust device 100 of an engine 1 includes a valve (an exhaust variable valve 3) to open and close the first passage. A controller (an engine controller 7) closes the valve if an engine speed of the engine 1 is lower than a predetermined engine speed and opens the valve if the engine speed of the engine 1 is higher than or equal to the predetermined engine speed. The controller opens the valve even though the engine speed of the engine 1 is lower than the predetermined engine speed if performing the fuel cut control.

    Opening/closing valve structure
    5.
    发明授权
    Opening/closing valve structure 有权

    公开(公告)号：US10408120B2

    公开(公告)日：2019-09-10

    申请号：US15319129

    申请日：2015-08-10

    申请人： MAZDA MOTOR CORPORATION

    发明人： Einosuke Suekuni ,  Masaaki Sato ,  Junji Umemura ,  Shuhei Tsujita ,  Hisayoshi Yamada

    IPC分类号： F02D9/10 ,  F02B31/02 ,  F02B31/06 ,  F02B37/02 ,  F02B37/12 ,  F16K1/22

    摘要： An opening/closing valve structure for an engine is provided with a valve body for opening and closing an intake passage or an exhaust passage of the engine; a pair of bush members mounted on axial ends of the valve body; and a shaft member axially passing through one of the bush members and projecting from the bush member by a predetermined length within one end of the valve body. Each of the bush members is mounted in such a manner that a part of the bush member is axially received in an end of the valve body and the remaining part thereof axially projects from the end of the valve body. A portion of the shaft member projecting from the one of the bush members is connected to the valve body in such a manner that relative rotation of the shaft member with respect to the valve body is disabled.

    Exhaust gas recirculation system for engine
    6.
    发明授权
    Exhaust gas recirculation system for engine 有权
    发动机废气再循环系统

    公开(公告)号：US09388770B2

    公开(公告)日：2016-07-12

    申请号：US14052424

    申请日：2013-10-11

    申请人： MAZDA MOTOR CORPORATION

    发明人： Shuhei Tsujita ,  Einosuke Suekuni ,  Junji Umemura ,  Yuki Nabetani

    IPC分类号： F02B33/44 ,  F02M25/07 ,  F02D23/00 ,  F02B37/00

    CPC分类号： F02M26/44 ,  F02B37/00 ,  F02D23/00 ,  Y02T10/121 ,  Y02T10/144

    摘要： Disclosed is an exhaust gas recirculation system for an engine (1), wherein at least a downstream sub-region of a region of an exhaust passage (33) upstream of a turbine wheel (52) is divided into two sub-passages (R1, R2) by a partition wall (20a, 30a) extending along an exhaust gas flow direction. A high-speed sub-passage (R2) in the two sub-passages (R1, R2) is equipped with an openable-closable exhaust variable valve (23). The exhaust variable valve (23) is configured to be controlled to open the high-speed sub-passage (R2) when an engine speed is equal to or greater than a reference speed, and close the high-speed sub-passage (R2) when the engine speed is less than the reference speed. An inlet (60a) of an EGR passage (60) on the side of the exhaust passage (33) is opened to the high-speed sub-passage (R2) at a position downstream of the exhaust variable valve (23).

    摘要翻译： 公开了一种用于发动机（1）的排气再循环系统，其中在涡轮机叶轮（52）上游的排气通道（33）的区域的至少下游子区域被分成两个子通道（R1， R2）通过沿排气流动方向延伸的分隔壁（20a，30a）。 两个子通路（R1，R2）中的高速子通路（R2）配备有可开闭的排气可变阀（23）。 当发动机转速等于或大于参考速度时，排气可变阀（23）被构造成被控制以打开高速子通道（R2），并且关闭高速子通道（R2） 当发动机转速低于参考速度时。 在排气可变阀（23）的下游侧的位置，在排气通路（33）侧的EGR通路（60）的入口（60a）向高速副通路（R2）开放。

    MULTI-CYLINDER GASOLINE ENGINE
    10.
    发明申请
    MULTI-CYLINDER GASOLINE ENGINE 有权
    多缸汽油发动机

    公开(公告)号：US20130284146A1

    公开(公告)日：2013-10-31

    申请号：US13865939

    申请日：2013-04-18

    申请人： MAZDA MOTOR CORPORATION

    发明人： Shuhei Tsujita ,  Tatsuya Koga

    IPC分类号： F02D11/00

    CPC分类号： F02D11/00 ,  F02D9/04 ,  F02D13/0276 ,  Y02T10/14 ,  Y02T10/18

    摘要： A multi-cylinder gasoline engine is provided. The engine includes an engine body having a plurality of cylinders, an exhaust manifold through which exhaust gas discharged from each of the cylinders of the engine body passes, and a controller for controlling various instruments provided to the engine body and the exhaust manifold. The engine body includes a switch mechanism. The exhaust manifold includes a plurality of independent exhaust passages, a gathering section, a negative pressure generating device, bypass passages, and openable-and-closable flow switch valves. The controller controls the injector, the ignition plug, the switch mechanism, and the flow switch valve so that a CI combustion is performed within a predetermined first operating range and an SI combustion is performed within a second operating range set on a higher engine load side than the first operating range.

    摘要翻译： 提供多缸汽油发动机。 发动机包括具有多个气缸的发动机主体，从发动机机体的每个气缸排出的废气通过的排气歧管，以及用于控制设置到发动机主体和排气歧管的各种仪器的控制器。 发动机主体包括开关机构。 排气歧管包括多个独立的排气通道，聚集部分，负压产生装置，旁通通道和可开启和关闭的流量切换阀。 控制器控制喷射器，火花塞，开关机构和流量切换阀，使得在预定的第一操作范围内执行CI燃烧，并且在设定在较高发动机负载侧的第二操作范围内执行SI燃烧 比第一个工作范围。