利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

564 条记录 (耗时 0.02 秒)

    Cross-Port Air Flow To Reduce Pumping Losses
    2.
    发明申请
    Cross-Port Air Flow To Reduce Pumping Losses 有权

    公开(公告)号：US20210348548A1

    公开(公告)日：2021-11-11

    申请号：US17330903

    申请日：2021-05-26

    申请人： Bright Acceleration Technologies LLC

    发明人： James R. Clarke ,  Richard J. Fotsch ,  C. Thomas Sylke

    IPC分类号： F02B37/007 ,  F02B27/02 ,  F02D9/10 ,  F02D31/00 ,  F02D41/00 ,  F02B37/22

    摘要： Cross-port air flow that improves engine fuel economy and reduces pumping losses during part-throttle operation can be implemented in various types of internal combustion engine systems using ports that interconnect the intake ports of different cylinders, thus allowing different cylinders to share combustion air. Cross-port air flow is commenced during part-throttle engine operation to disrupt the primary combustion air flow from each throttle to its associated cylinder, which reduces charge density and engine power. The engine compensates for the reduced power by incrementally opening the throttles, thus increasing the primary combustion air flow, reducing pumping losses and improving fuel economy.

    Fresh air supply device for an internal combustion engine of a motor vehicle
    3.
    发明授权
    Fresh air supply device for an internal combustion engine of a motor vehicle 有权

    公开(公告)号：US10557420B2

    公开(公告)日：2020-02-11

    申请号：US16081411

    申请日：2017-03-03

    申请人： Mahle International GmbH

    发明人： Jochen Eichner ,  Daniel Schatz

    IPC分类号： F02D9/00 ,  F02D9/10 ,  F02B27/02 ,  F02D9/02

    摘要： A fresh air supply device for an internal combustion engine may include a housing and a flap arrangement arranged in the housing. The flap arrangement may include at least one flap for controlling a fresh air flow through a fresh air path to a respective cylinder of the internal combustion engine. The flap arrangement may include a common actuator shaft connected to the at least one flap in a torque-proof manner and mounted rotatably about an axis of rotation in a plurality of bearings of the flap arrangement. The actuator shaft may have at least one actuator shaft section in which the actuator shaft has a right-angle bend configured to interact with a stop present on the housing for limiting rotational movement of the actuator shaft.

    CONTROL SYSTEM FOR COMPRESSION IGNITION ENGINE
    4.
    发明申请
    CONTROL SYSTEM FOR COMPRESSION IGNITION ENGINE 审中-公开

    公开(公告)号：US20200032698A1

    公开(公告)日：2020-01-30

    申请号：US16456274

    申请日：2019-06-28

    申请人： Mazda Motor Corporation

    发明人： Yuto Matsushima ,  Masayoshi Higashio ,  Yugou Sunagare ,  Shinji Takayama ,  Kenko Ujihara ,  Yuta Masuda

    IPC分类号： F02B1/14 ,  F02B19/10 ,  F02B53/06 ,  F02B27/02

    摘要： A control system for a compression ignition engine configured to start compression ignition combustion by igniting mixture gas formed by injecting fuel into combustion chambers is provided, which includes combustion chambers each defined in respective cylinders so that displacements of the combustion chambers change by respective pistons reciprocating, a throttle valve, ignition plugs, injectors, a sensor having measuring parts including an atmospheric-pressure detector configured to detect an atmospheric pressure, and configured to measure parameters related to operation of the engine, and a controller. The controller executes a lean compression ignition combustion control in which compression ignition combustion is performed at a given lean air-fuel ratio higher than a stoichiometric air-fuel ratio. The controller restricts the execution of the lean compression ignition combustion control when the controller determines that the atmospheric pressure is lower than a given threshold based on a signal outputted from the atmospheric-pressure detector.

    Apparatus and method for controlling an internal combustion engine
    5.
    发明授权
    Apparatus and method for controlling an internal combustion engine 有权

    公开(公告)号：US10473047B2

    公开(公告)日：2019-11-12

    申请号：US15531060

    申请日：2015-11-27

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Shintaro Hotta

    IPC分类号： F02D41/02 ,  F02B37/16 ,  F02D41/40 ,  F02D13/02 ,  F02D41/00 ,  F02B27/02 ,  F02B29/04 ,  F02B37/00 ,  F02B37/013 ,  F02D41/22 ,  F02B27/00

    摘要： An engine includes an exhaust gas control apparatus that is configured to store NOx and react NOx with a reduction agent. A control device for the engine includes an electronic control unit. The electronic control unit is configured to: (i) execute a rich spike control, the rich spike control is a control executed to temporarily change an in-cylinder air-fuel ratio from a leaner air-fuel ratio than the stoichiometric air-fuel ratio to the stoichiometric air-fuel ratio or a richer air-fuel ratio than the stoichiometric air-fuel ratio, and (ii) vary an overlap amount of an intake valve and an exhaust valve such that the overlap amount is less during execution of the rich spike control than during non-execution of the rich spike control, in an operation range where a pressure of the intake port becomes higher than a pressure of the exhaust port.