Engine unit
    61.
    发明授权
    Engine unit 有权
    发动机单元

    公开(公告)号:US09347350B2

    公开(公告)日:2016-05-24

    申请号:US14112395

    申请日:2013-03-29

    Applicant: KOMATSU LTD.

    Abstract: An engine unit includes an engine, an exhaust gas treatment device and a connecting pipe. The engine has an exhaust gas port. The exhaust gas treatment device is arranged above the engine. The connecting pipe connects the exhaust gas port and the exhaust gas treatment device. The connecting pipe has an expandable-contractible bellows portion. The bellows portion has a linear form following the upward-downward direction. The lower end portion of the bellows portion is positioned lower than at least a part of the exhaust gas port.

    Abstract translation: 发动机单元包括发动机,废气处理装置和连接管。 发动机有排气口。 排气处理装置设置在发动机的上方。 连接管连接排气口和废气处理装置。 连接管具有可膨胀收缩的波纹管部分。 波纹管部分沿着向上 - 向下的方向具有线性形式。 波纹管部的下端部位于排气口的至少一部分的下方。

    Exhaust device of motorcycle
    63.
    发明授权
    Exhaust device of motorcycle 有权
    摩托车排气装置

    公开(公告)号:US09322317B2

    公开(公告)日:2016-04-26

    申请号:US14539519

    申请日:2014-11-12

    Abstract: A motorcycle is equipped with a V-type engine in which front and rear cylinders are arranged in a V-shape along a vehicle front and rear direction. An exhaust device includes: a catalyst device disposed on an exhaust downstream side of a collection part of an exhaust pipe of the front cylinder and an exhaust pipe of the rear cylinder; and a connecting pipe via which the exhaust pipe of the front cylinder and the exhaust pipe of the rear cylinder communicate with each other, and the connecting pipe passes through a space between the exhaust pipe of the rear cylinder and the catalyst device.

    Abstract translation: 摩托车配有V型发动机,其中前后气缸沿车辆前后方向排列成V形。 排气装置包括:设置在前筒的排气管的收集部的排气下游侧的催化剂装置和后筒的排气管; 以及前筒的排气管与后筒的排气管的连接管连通,连接管通过后筒的排气管与催化剂装置之间的空间。

    ENGINE DEVICE OF WORKING VEHICLE
    66.
    发明申请
    ENGINE DEVICE OF WORKING VEHICLE 有权
    发动机工作车辆

    公开(公告)号:US20160017778A1

    公开(公告)日:2016-01-21

    申请号:US14771943

    申请日:2014-03-13

    Abstract: An engine device of a working vehicle is structured such that a first case and a second case can be firmly fixed with a high rigidity by making good use of a frame of an engine room. In the engine device of the working vehicle having the first case which removes particulate matter in exhaust gas of the engine and the second case which removes nitrogen oxide in the exhaust gas of the engine, the first case is provided in the engine room which is inward provided with the engine, via a first case support body, and the second case is provided in the engine room via second case support bodies.

    Abstract translation: 工作车辆的发动机装置构造成使得可以通过充分利用发动机室的框架​​,以高刚性将第一壳体和第二壳体牢固地固定。 在具有第一壳体的作业车辆的发动机装置中,该第一壳体除去发动机的排气中的微粒物质和除去发动机排气中的氮氧化物的第二壳体,第一壳体设置在内侧的发动机室内 经由第一壳体支撑体设置有发动机,并且第二壳体经由第二壳体支撑体设置在发动机室中。

    HEAT EXCHANGER
    67.
    发明申请
    HEAT EXCHANGER 审中-公开
    热交换器

    公开(公告)号:US20160003550A1

    公开(公告)日:2016-01-07

    申请号:US14856640

    申请日:2015-09-17

    Abstract: To provide a heat exchanger that can control temperatures of fluids to be heat-exchanged. A heat exchanger 30 includes a honeycomb structure 1, a second fluid flow through portion 26 located at an outer periphery side of the honeycomb structure 1 serving as a flow passage for a second fluid, and a third fluid flow through portion 27 located at an outer periphery side of the second fluid flow through portion 26 serving as a flow passage for a third fluid. Cells 3 of the honeycomb structure 1 serve as a first fluid flow through portion 25 through which the first fluid passes. With the heat exchanger 30, the first fluid, the second fluid, and the third fluid can be heat-exchanged without being mixed with one another. Constituting the fluid flow passage with three flow passages allows controlling temperatures of two fluids to be heat-exchanged by the residual fluid.

    Abstract translation: 提供可以控制待热交换的流体的温度的热交换器。 热交换器30包括蜂窝结构体1,位于作为第二流体的流路的蜂窝结构体1的外周侧的第二流体流通部26和位于外侧的第三流体流通部27 第二流体流过部分26的外周侧用作第三流体的流动通道。 蜂窝结构体1的细胞3用作第一流体通过部分25,第一流体通过该部分。 利用热交换器30,第一流体,第二流体和第三流体可以被热交换而不彼此混合。 通过三个流动通道构成流体流动通道允许控制两种流体的温度由剩余流体进行热交换。

    DUAL FUEL ENGINE SYSTEM
    68.
    发明申请
    DUAL FUEL ENGINE SYSTEM 审中-公开
    双燃油发动机系统

    公开(公告)号:US20150377108A1

    公开(公告)日:2015-12-31

    申请号:US14845352

    申请日:2015-09-04

    Abstract: A dual fuel engine system is provided. The dual fuel engine system includes a dual fuel engine. The dual fuel engine system also includes a turbocharger connected to the dual fuel engine having a turbine portion and a compressor portion. The dual fuel engine system further includes a methane reduction module positioned downstream of the turbocharger. The methane reduction module is configured to receive a flow of exhaust gas from the turbine portion of the turbocharger. The methane reduction module includes a combustor. The methane reduction module is adapted to increase a temperature of the exhaust gas flow received from the turbine portion of the turbocharger. The methane reduction module is also adapted to combust methane constituents present in the exhaust gas based on the increase in the temperature.

    Abstract translation: 提供了双燃料发动机系统。 双燃料发动机系统包括双燃料发动机。 双燃料发动机系统还包括连接到具有涡轮部分和压缩机部分的双燃料发动机的涡轮增压器。 双燃料发动机系统还包括位于涡轮增压器下游的甲烷还原模块。 甲烷还原模块被配置为从涡轮增压器的涡轮机部分接收废气流。 甲烷还原模块包括燃烧器。 甲烷还原模块适于增加从涡轮增压器的涡轮部分接收的废气流的温度。 甲烷还原模块还适于基于温度的升高燃烧存在于废气中的甲烷成分。

    Air-fuel ratio control device for internal combustion engine
    70.
    发明授权
    Air-fuel ratio control device for internal combustion engine 有权
    内燃机空燃比控制装置

    公开(公告)号:US09212583B2

    公开(公告)日:2015-12-15

    申请号:US14117440

    申请日:2011-05-16

    Abstract: An air-fuel ratio control apparatus for an internal combustion engine according to an embodiment of the invention (the present control apparatus) sets a target air-fuel ratio to a target rich air-fuel ratio when it is determined on the basis of the output value Voxs of a downstream air-fuel ratio sensor 67 that the oxygen adsorption amount of a catalyst 43 tends to be excessive, and sets the target air-fuel ratio to a target lean air-fuel ratio when it is determined on the basis of the output value Voxs that the oxygen adsorption amount of the catalyst 43 tends to be insufficient. Further, the present control apparatus determines whether or not an operation state in which a large amount of nitrogen oxide flows into the catalyst 43 is reached on the basis of “whether a predetermined condition is fulfilled”, and makes the target rich air-fuel ratio obtained when the predetermined condition is fulfilled less than the target rich air-fuel ratio obtained when the predetermined condition is not fulfilled. As a result, the concentration of a reducing agent inside the catalyst 43 can be increased before a large amount of NOx flows into the catalyst 43. Therefore, when a large amount of NOx flows into the catalyst 43, most of the NOx can be eliminated.

    Abstract translation: 根据本发明的实施例的内燃机的空燃比控制装置(本控制装置)在基于输出确定目标空燃比时,将目标空燃比设定为目标浓空燃比 下游空燃比传感器67的值Voxs,催化剂43的氧吸附量倾向于过大,并且当基于该催化剂43确定目标空燃比时,将目标空燃比设定为目标稀燃比 输出值Vox,催化剂43的氧吸附量趋于不足。 此外,本控制装置基于“是否满足预定条件”来确定是否达到大量氮氧化物流入催化剂43的操作状态,并且使目标浓空燃比 当预定条件满足小于当不满足预定条件时获得的目标浓空燃比时获得的。 结果,在大量的NOx流入催化剂43之前,可以增加催化剂43内的还原剂的浓度。因此,当大量的NO x流入催化剂43时,可以消除大部分的NOx 。

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