Air supply control systems for turbocharged internal combustion engines
    3.
    发明授权
    Air supply control systems for turbocharged internal combustion engines 失效
    用于涡轮增压内燃机的供气控制系统

    公开(公告)号:US5035114A

    公开(公告)日:1991-07-30

    申请号:US426586

    申请日:1989-10-25

    摘要: An air supply control system for an internal combustion engine comprises a supercharging device operative to perform selectively a first supercharging operation by which supercharging efficiently under a first condition wherein the engine operates with relatively small intake air flow is improved and a second supercharging operation by which supercharging efficiency under a second condition wherein the engine operates with relatively large intake air flow is improved, an operation detector for detecting engine operations, a traveling condition detector for detecting traveling conditions to a vehicle equipped with the engine, a supercharging operation controller operative to cause the supercharging device to perform the first supercharging operation when a first engine operation attended with relatively small intake air flow is detected by the operation detector and to perform the second supercharging operation when a second engine operation attended with relatively large intake air flow is detected by the operation detector, and an operating area changer operative to vary, in accordance with traveling conditions detected by the traveling condition detector, a boundary between first and second operating areas provided on an operating characteristic chart of the engine for defining the first and second engine operations, respectively.

    摘要翻译: 一种用于内燃机的空气供应控制系统,包括增压装置,其操作以选择性地执行第一增压操作,通过该第一增压操作,在第一状态下有效地进行增压,其中发动机以相对较小的进气流动作业而改善,以及第二增压操作, 改善发动机以相对较大的进气流动的第二状态下的效率,用于检测发动机运转的运行检测器,检测配备有发动机的车辆的行驶状况的行驶状态检测器, 当由操作检测器检测到具有相对较小的进气流的第一发动机操作时执行第一增压操作的增压装置,并且当第二发动机操作参与相对较大的进气流时执行第二增压操作 w由操作检测器检测,并且操作区域更换器根据由行驶状态检测器检测到的行驶条件可操作地改变设置在发动机的操作特性图上的第一和第二操作区域之间的边界,用于定义第一 和第二发动机操作。

    Air and fuel supply control systems for internal combustion engines
    4.
    发明授权
    Air and fuel supply control systems for internal combustion engines 失效
    用于内燃机的空气和燃料供应控制系统

    公开(公告)号:US5095703A

    公开(公告)日:1992-03-17

    申请号:US488270

    申请日:1990-03-05

    摘要: An air and fuel supply control system for an internal combustion engine comprises a plurality of superchargers including a turbosupercharger, an intake air cutoff valve operative selectively to be open and closed respectively for opening and closing one of separated intake passages in which a compressor of the turbosupercharger is disposed, an intake air relief valve operative selectively to be open and closed respectively for opening and closing a relief passage provided for detouring the compressor of the second supercharger, a cutoff valve controller operative to control the intake air cutoff valve to be closed so that the turbosupercharger is restrained from supercharging the engine and to be open so that the turbosupercharger works for supercharging the engine, a relief valve controller operative to control the intake air relief valve to be closed before the intake air cutoff valve is opened and to be open after the intake air cutoff valve is closed, an air flow sensor for detecting intake air mass flow passing through an intake passage from which the separated intake passages are branched, a fuel supply controller operative to control quantity of fuel supplied to the engine in accordance with a detection output obtained from the air flow sensor, and a fuel supply revising device operative to revise the quantity of fuel supplied to the engine when the intake air relief valve is caused to be open and closed selectively.

    摘要翻译: 一种用于内燃机的空气和燃料供应控制系统包括多个增压器,包括涡轮增压器,可选择性地打开和关闭的进气截流阀,用于打开和关闭分离的进气通道中的一个,其中涡轮增压器的压缩机 设置有选择性地打开和关闭的进气安全阀,用于打开和关闭用于迂回第二增压器的压缩机的释放通道,切断阀控制器,其操作以控制进气截流阀被关闭,使得 涡轮增压器被限制为对发动机增压并打开,使得涡轮增压器用于对发动机进行增压;安全阀控制器,其操作以在进气截流阀打开之前控制进气泄压阀关闭并且在打开之后打开 进气截流阀关闭,用于检测的气流传感器 吸入空气质量流量通过分离的进气通路分支的进气通道;燃料供应控制器,用于根据从空气流量传感器获得的检测输出来控制供应给发动机的燃料量;以及燃料供给 所述修正装置在使所述进气安全阀选择性地打开和关闭时可操作地修改供给到所述发动机的燃料量。

    Air supply control systems for internal combustion engines
    5.
    发明授权
    Air supply control systems for internal combustion engines 失效
    内燃机供气控制系统

    公开(公告)号:US5036663A

    公开(公告)日:1991-08-06

    申请号:US467497

    申请日:1990-01-19

    摘要: An air supply control system for an internal combustion engine comprises first and second turbosuperchargers, an exhaust cutoff valve operative to open and close one of separated exhaust passages in which a turbine of the second turbosupercharger is disposed, a first valve driving device for controlling the exhaust cutoff valve so that only the first turbosupercharger works when intake air mass flow fed to the engine is to be relatively small and both of the first and second turbosuperchargers work when the intake air mass flow is to be relatively large, an exhaust bypass valve operative to open and close an exhaust bypass passage provided for forming a partial exhaust passage detouring the exhaust cutoff valve, a second valve driving device for causing the exhaust bypass valve to open the exhaust bypass passage when intake air pressure applied to the engine reaches a predetermined value under a condition in which the intake air mass flow is to be relatively small, a waste gate valve operative to open and close a bypass passage provided for forming a partial exhaust passage detouring the turbines of the first and second turbosuperchargers, and a third valve driving device for causing the waste gate valve to open the bypass passage when the pressure of intake air reaches substantially the predetermined value under a condition in which the intake air mass flow is to be relatively large.

    摘要翻译: 一种用于内燃机的空气供应控制系统包括第一和第二涡轮增压器,排气截流阀,其操作以打开和关闭其中设置有第二涡轮增压器的涡轮的分离的排气通道之一;用于控制排气的第一阀驱动装置 截止阀,使得当进气发动机的进气质量流量相对较小并且当进气质量流量相对较大时,第一涡轮增压器和第二涡轮增压器都起作用,仅当第一涡轮增压器工作时,排气旁通阀可操作 打开和关闭用于形成绕排气截流阀的局部排气通道的排气旁路通道;第二阀驱动装置,用于当施加到发动机的进气压力达到预定值时使排气旁通阀打开排气旁通通道 废气质量流量相对较小的废气门阀o 用于打开和关闭用于形成绕第一和第二涡轮增压器的涡轮的部分排气通道的旁路通道;以及第三阀驱动装置,用于当进气压力基本达到达到时使废门阀打开旁通通道 在进气质量流量相对较大的条件下的预定值。

    Air supply control systems for turbocharged internal combustion engines

    公开(公告)号:US5020327A

    公开(公告)日:1991-06-04

    申请号:US324662

    申请日:1989-03-17

    IPC分类号: F02B37/007 F02B37/18

    摘要: An air supply control system for an internal combustion engine includes a plurality of superchargers including a turbosupercharger, an exhaust cutoff valve operative selectively to open and close an exhaust passage in which a turbine of the turbosupercharger is disposed, and an intake air cutoff valve operative selectively to open and close an intake passage in which a blower of the turbosupercharger is disposed, wherein both the exhaust cutoff valve and the intake air cutoff valve are closed when intake air mass flow fed to the engine is to be relatively small and are open when the intake air mass flow is to be relatively large, the intake air cutoff valve is delayed to be open compared with the exhaust cutoff valve when the operating condition of the engine is changed into the situation in which the intake air mass flow is to be relatively large from the situation in which the intake air mass flow is to be relatively small, and the intake air cutoff valve is delayed to be closed compared with the exhaust cutoff valve when the operating condition of the engine is changed into the situation in which the intake air mass flow is to be relatively small from the situation in which the intake air mass flow is to be relatively large.

    Air supply control systems for turbocharged internal combustion engines

    公开(公告)号:US5005359A

    公开(公告)日:1991-04-09

    申请号:US324670

    申请日:1989-03-17

    摘要: An air supply control system for an internal combustion engine comprises a plurality of superchargers including a turbosupercharger, an exhaust cutoff valve operative selectively to open and close an exhaust passage in which a turbine of the turbosupercharger is disposed, an intake air cutoff valve operative selectively to open and close an intake passage in which a blower of the turbosupercharger is disposed, an intake air relief valve operative selectively to open and close a relief passage provided for detouring the blower of the turbosupercharger, an engine operation detector for detecting operating conditions of the engine, a cutoff valve controller operative, in response to the detection output from the engine operation detector, to cause both the exhaust cutoff valve and the intake air cutoff valve to be closed when intake air mass flow fed to the engine is to be relatively small and to cause both the exhaust cutoff valve and the intake air cutoff valve to be open when the intake air mass flow fed to the engine is to be relatively large, and a relief valve controller operative, in response to the detection output from the engine operation detector, to cause the intake air relief valve to be closed at a time point earlier than another time point at which the exhaust cutoff valve is fully opened.

    Air and fuel supply control systems for internal combustion engines
    9.
    发明授权
    Air and fuel supply control systems for internal combustion engines 失效
    用于内燃机的空气和燃料供应控制系统

    公开(公告)号:US5090203A

    公开(公告)日:1992-02-25

    申请号:US488228

    申请日:1990-03-05

    摘要: An air and fuel supply control system for an internal combustion engine comprises a plurality of superchargers including a turbosupercharger, an intake air cutoff valve operative selectively to be open and closed respectively for opening and closing one of separated intake passages in which a compressor of the turbosupercharger is disposed, a cutoff valve controller operative to control the intake air cutoff valve to be closed so that the turbosupercharger is restrained from supercharging the engine when intake air mass flow fed to the engine is to be relatively small and to control the intake air cutoff valve to be open so that the turbosupercharger works for supercharging the engine when the intake air mass flow fed to the engine is to be relatively large, and air flow sensor for detecting intake air mass flow passing through an intake passage from which the separated intake passages are branched, a fuel supply controller operative to control quantity of fuel supplied to the engine in accordance with a detection output obtained from the air flow sensor, and a fuel supply revising device operative to revise the quantity of fuel supplied to the engine when the intake air cutoff valve is caused to be open and closed selectively.

    摘要翻译: 一种用于内燃机的空气和燃料供应控制系统包括多个增压器,包括涡轮增压器,可选择性地打开和关闭的进气截流阀,用于打开和关闭分离的进气通道中的一个,其中涡轮增压器的压缩机 设置有截流阀控制器,其操作以控制进气截流阀关闭,使得当进给到发动机的进气质量流量相对较小并且控制进气截流阀时,限制涡轮增压器对发动机增压 打开,使得当进给发动机的进气质量流量相对较大时,涡轮增压器可用于对发动机进行增压;以及空气流量传感器,用于检测通过进气通道的进气质量流量,分离的进气通道从该进气通道 燃料供给控制器,用于控制供给发动机i的燃料量 根据从空气流量传感器获得的检测输出,以及燃料供给修正装置,其可操作以在进气截流阀选择性地打开和关闭时修正供应给发动机的燃料量。

    Internal combustion engine with turbo supercharger
    10.
    发明授权
    Internal combustion engine with turbo supercharger 失效
    带涡轮增压器的内燃机

    公开(公告)号:US4993228A

    公开(公告)日:1991-02-19

    申请号:US357290

    申请日:1989-05-26

    摘要: An internal combustion engine comprises a primary supercharger operated in substantially a full range of engine operating conditions of a vehicle and a secondary supercharger operated in a specific range of the engine operating condition. The plurality of supercharger are arranged in parallel in the fore and aft direction of a vehicle in a manner such that the primary supercharger means is disposed forward of the secondary supercharger. The primary supercharger is disposed at a front portion of an engine room, just behind a cooling fan, to easily be provided with a cooling effect by virtue of a fresh air. The secondary supercharger is disposed rearward of the primary supercharger to avoid the cooling effect provided by the fresh air and to receive air warmed by the primary supercharger so to undergo a warming up effect.

    摘要翻译: 内燃机包括主要增压器,其操作在车辆的发动机运行状态的基本上全范围内,并且在发动机运行条件的特定范围内操作的次级增压器。 多个增压器以车辆的前后方向平行布置,使得主增压器装置设置在次级增压器的前方。 主增压器位于发动机室的前部,刚好位于冷却风扇后面,以便通过新鲜空气容易地获得冷却效果。 次级增压器设置在主增压器的后方,以避免由新鲜空气提供的冷却效果,并且接收由主增压器加热的空气,从而经历预热效果。