Piezoelectric flow control valve
    1.
    发明授权
    Piezoelectric flow control valve 失效
    压电流量控制阀

    公开(公告)号:US4728074A

    公开(公告)日:1988-03-01

    申请号:US925251

    申请日:1986-10-31

    摘要: A piezoelectric flow control valve comprising a slidable closure member (22) for controlling a flow of fluid through a fluid passage (42) between a fluid inlet (40) and a fluid outlet (32). The closure member (22) is biased toward a normally closed position by a plunger (70) responsive to a hydraulic pressure in a pressure chamber (78) which is in fluid communication with the fluid inlet (40) through a restriction and with a pumping chamber (96) of a piezoelectric pump (72). In order to prevent fluid leakage under situations wherein the fluid pressure at the fluid inlet (40) is not high enough to ensure closure of the member (22), the present invention provides spring biased pressure mechanism (106) for biasing the closure member (22) toward the normally closed position and override means (130) for overriding the pressure mechanism (106) in response to a predetermined pressure at the fluid inlet (40).

    摘要翻译: 一种压电流量控制阀,包括用于控制流体流过流体入口(40)和流体出口(32)之间的流体通道(42)的可滑动闭合构件(22)。 响应于压力室(78)中的液压,封闭构件(22)通过柱塞(70)被朝向常闭位置偏置,压力室(78)通过限制和泵送与流体入口(40)流体连通 压电泵(72)的室(96)。 为了在流体入口(40)处的流体压力不足以确保构件(22)的闭合的情况下防止流体泄漏,本发明提供了用于偏压闭合构件的弹簧偏置压力机构(106) 22)朝向常闭位置,并且用于响应于流体入口(40)处的预定压力来超压压力机构(106)的超驰装置(130)。

    Fuel supply system for an internal combustion engine
    2.
    发明授权
    Fuel supply system for an internal combustion engine 失效
    内燃机燃油供应系统

    公开(公告)号:US5305714A

    公开(公告)日:1994-04-26

    申请号:US908270

    申请日:1992-07-02

    摘要: A fuel supply system for a hydrogen gas engine, having a metal hydride tank in which pellets or powders of a metal hydride absorbing and storing alloy are stored. A heat exchange device is arranged in the tank in contact with the metal hydride therein. The heat exchange device is connected to a heating medium source, such as an engine water jacket, for supplying the heating medium to the heat exchange device, for separating hydrogen gas from the metal hydride. A fuel supply conduit is provided for connecting the metal hydride tank with the engine. A hydrogen gas flow control valve and a hydrogen gas flow meter are arranged in series in the conduit. A controller is provided for controlling the hydrogen gas flow control valve so that a desired amount of the hydrogen gas, as detected by the hydrogen gas flow meter, is obtained. A sub tank may be provided for storing an excess amount of hydrogen gas from the main tank, which is introduced into the engine via a sonic valve. An indicator for measuring an amount of hydrogen gas remaining, from the volume of the metal hydride, is also provided.

    摘要翻译: 一种用于氢气发动机的燃料供应系统,具有金属氢化物罐,其中储存有金属氢化物吸收和储存合金的颗粒或粉末。 热交换装置布置在罐中与金属氢化物接触的位置。 热交换装置连接到诸如发动机水套的加热介质源,用于将热介质供应到热交换装置,用于从金属氢化物分离氢气。 提供用于将金属氢化物罐与发动机连接的燃料供应管道。 氢气流量控制阀和氢气流量计串联布置在管道中。 提供控制器来控制氢气流量控制阀,从而获得由氢气流量计检测到的所需量的氢气。 可以设置副罐,用于存储来自主罐的过量的氢气,其通过声音阀被引入发动机。 还提供了用于从金属氢化物的体积测量剩余的氢气量的指标。

    INTERNAL COMBUSTION ENGINE KNOCK DETERMINATION DEVICE
    3.
    发明申请
    INTERNAL COMBUSTION ENGINE KNOCK DETERMINATION DEVICE 有权
    内燃机发动机卡诺决定装置

    公开(公告)号:US20080264150A1

    公开(公告)日:2008-10-30

    申请号:US12163342

    申请日:2008-06-27

    IPC分类号: G01L23/22

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper central portion of the cylinder; calculating knock intensity N based on a result of comparison between the detected waveform and a knock waveform model prepared in advance as a vibration waveform when knocking occurs; determining that knocking occurred when the knock intensity N is larger than a predetermined reference value; and determining that knocking has not occurred when the knock intensity N is not larger than the predetermined reference value.

    摘要翻译: 发动机ECU执行程序,包括以下步骤:通过使用带通滤波器从由设置在气缸的上中心部的缸内压力传感器检测到的振动来检测与第一径向共振模式相对应的振动; 基于检测波形与预先准备的爆震波形模型之间的比较结果,计算爆震强度N作为爆震时的振动波形; 确定当爆震强度N大于预定参考值时发生爆震; 并且当爆震强度N不大于预定参考值时,确定没有发生爆震。

    Knocking state determination device
    4.
    发明授权
    Knocking state determination device 有权
    敲击状态判定装置

    公开(公告)号:US07424820B2

    公开(公告)日:2008-09-16

    申请号:US11475231

    申请日:2006-06-27

    IPC分类号: G01L23/22 F01P5/14

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including a step of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step of deciding a maximum value V(MAX) in frequency distribution of intensity values LOG(V) for N cycles (N is a natural number); a step of calculating a knock determination level V(KD) based on the frequency distribution; a step of, when the knock determination level V(KD) is smaller than the maximum value V(MAX), removing V(MAX) from the frequency distribution; and a step of counting the total frequency of removed maximum values V(MAX) as knock occupancy KC. Maximum values V(MAX) are removed until the knock determination level V(KD) and the maximum value V(MAX) coincide, and the knock determination level V(KD) is recalculated.

    摘要翻译: 发动机ECU执行包括基于从爆震传感器发送的信号来计算强度值LOG(V)的步骤的程序; 在N个周期(N是自然数)中确定强度值LOG(V)的频率分布的最大值V(MAX)的步骤; 基于频率分布计算爆震判定电平V(KD)的步骤; 当爆震判定电平V(KD)小于最大值V(MAX)时,从频率分布中去除V(MAX)的步骤; 以及将去除的最大值V(MAX)的总频率计数为敲击占有率KC的步骤。 去除最大值V(MAX),直到爆震判定水平V(KD)和最大值V(MAX)重合为止,并重新计算爆震判定水平V(KD)。

    Knock determination device for internal combustion engine
    5.
    发明申请
    Knock determination device for internal combustion engine 审中-公开
    内燃机爆震判定装置

    公开(公告)号:US20060185422A1

    公开(公告)日:2006-08-24

    申请号:US11348332

    申请日:2006-02-07

    IPC分类号: G01L23/22

    CPC分类号: G01L23/225

    摘要: An engine ECU includes: an A/D (Analog/Digital) converter converting an analog signal transmitted from a knock sensor provided at a cylinder block into a digital signal; a bandpass filter passing only a vibration of a third order tangential resonance mode frequency band; and a bandpass filter passing only a vibration of a fourth order tangential resonance mode frequency band. The engine ECU determines whether the engine knocks, as based on the vibration selected by means of the bandpass filter or bandpass filter.

    摘要翻译: 发动机ECU包括:A / D(模拟/数字)转换器,将设置在气缸体处的爆震传感器的模拟信号转换为数字信号; 仅通过三阶切向谐振模式频带的振动的带通滤波器; 以及仅通过四阶切向谐振模式频带的振动的带通滤波器。 发动机ECU基于通过带通滤波器或带通滤波器选择的振动来确定发动机是否爆震。

    Internal combustion engine knock determination device
    6.
    发明授权
    Internal combustion engine knock determination device 有权
    内燃机爆震判定装置

    公开(公告)号:US07874200B2

    公开(公告)日:2011-01-25

    申请号:US12163342

    申请日:2008-06-27

    IPC分类号: G01L23/22

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper central portion of the cylinder; calculating knock intensity N based on a result of comparison between the detected waveform and a knock waveform model prepared in advance as a vibration waveform when knocking occurs; determining that knocking occurred when the knock intensity N is larger than a predetermined reference value; and determining that knocking has not occurred when the knock intensity N is not larger than the predetermined reference value.

    摘要翻译: 发动机ECU执行程序,包括以下步骤:通过使用带通滤波器从由设置在气缸的上中心部的缸内压力传感器检测到的振动来检测与第一径向共振模式相对应的振动; 基于检测波形与预先准备的爆震波形模型之间的比较结果,计算爆震强度N作为爆震时的振动波形; 确定当爆震强度N大于预定参考值时发生爆震; 并且当爆震强度N不大于预定参考值时,确定没有发生爆震。

    Knocking state determination device
    7.
    发明授权
    Knocking state determination device 有权
    敲击状态判定装置

    公开(公告)号:US07643932B2

    公开(公告)日:2010-01-05

    申请号:US12191327

    申请日:2008-08-14

    IPC分类号: G06F19/00 F02P5/00

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including a step of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step of deciding a maximum value V(MAX) in frequency distribution of intensity values LOG(V) for N cycles (N is a natural number); a step of calculating a knock determination level V(KD) based on the frequency distribution; a step of, when the knock determination level V(KD) is smaller than the maximum value V(MAX), removing V(MAX) from the frequency distribution; and a step of counting the total frequency of removed maximum values V(MAX) as knock occupancy KC. Maximum values V(MAX) are removed until the knock determination level V(KD) and the maximum value V(MAX) coincide, and the knock determination level V(KD) is recalculated.

    摘要翻译: 发动机ECU执行包括基于从爆震传感器发送的信号来计算强度值LOG(V)的步骤的程序; 在N个周期(N是自然数)中确定强度值LOG(V)的频率分布的最大值V(MAX)的步骤; 基于频率分布计算爆震判定电平V(KD)的步骤; 当爆震判定电平V(KD)小于最大值V(MAX)时,从频率分布中去除V(MAX)的步骤; 以及将去除的最大值V(MAX)的总频率计数为敲击占有率KC的步骤。 去除最大值V(MAX),直到爆震判定水平V(KD)和最大值V(MAX)重合为止,并重新计算爆震判定水平V(KD)。

    KNOCKING STATE DETERMINATION DEVICE
    8.
    发明申请
    KNOCKING STATE DETERMINATION DEVICE 有权
    锁定状态确定装置

    公开(公告)号:US20080306677A1

    公开(公告)日:2008-12-11

    申请号:US12191327

    申请日:2008-08-14

    IPC分类号: G01L23/22

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including a step of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step of deciding a maximum value V(MAX) in frequency distribution of intensity values LOG(V) for N cycles (N is a natural number); a step of calculating a knock determination level V(KD) based on the frequency distribution; a step of, when the knock determination level V(KD) is smaller than the maximum value V(MAX), removing V(MAX) from the frequency distribution; and a step of counting the total frequency of removed maximum values V(MAX) as knock occupancy KC. Maximum values V(MAX) are removed until the knock determination level V(KD) and the maximum value V(MAX) coincide, and the knock determination level V(KD) is recalculated.

    摘要翻译: 发动机ECU执行包括基于从爆震传感器发送的信号来计算强度值LOG(V)的步骤的程序; 在N个周期(N是自然数)中确定强度值LOG(V)的频率分布的最大值V(MAX)的步骤; 基于频率分布计算爆震判定电平V(KD)的步骤; 当爆震判定电平V(KD)小于最大值V(MAX)时,从频率分布中去除V(MAX)的步骤; 以及将去除的最大值V(MAX)的总频率计数为敲击占有率KC的步骤。 去除最大值V(MAX),直到爆震判定水平V(KD)和最大值V(MAX)重合为止,并重新计算爆震判定水平V(KD)。

    Internal combustion engine knock determination device
    9.
    发明授权
    Internal combustion engine knock determination device 有权
    内燃机爆震判定装置

    公开(公告)号:US07412874B2

    公开(公告)日:2008-08-19

    申请号:US11410983

    申请日:2006-04-26

    IPC分类号: G01L23/22

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper central portion of the cylinder; calculating knock intensity N based on a result of comparison between the detected waveform and a knock waveform model prepared in advance as a vibration waveform when knocking occurs; determining that knocking occurred when the knock intensity N is larger than a predetermined reference value; and determining that knocking has not occurred when the knock intensity N is not larger than the predetermined reference value.

    摘要翻译: 发动机ECU执行程序,包括以下步骤:通过使用带通滤波器从由设置在气缸的上中心部的缸内压力传感器检测到的振动来检测与第一径向共振模式相对应的振动; 基于检测波形与预先准备的爆震波形模型之间的比较结果,计算爆震强度N作为爆震时的振动波形; 确定当爆震强度N大于预定参考值时发生爆震; 并且当爆震强度N不大于预定参考值时,确定没有发生爆震。

    Knocking state determination device
    10.
    发明申请
    Knocking state determination device 有权
    敲击状态判定装置

    公开(公告)号:US20070084267A1

    公开(公告)日:2007-04-19

    申请号:US11475231

    申请日:2006-06-27

    IPC分类号: G01L23/22 G06F19/00 F02P5/00

    CPC分类号: G01L23/225

    摘要: An engine ECU executes a program including a step of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step of deciding a maximum value V(MAX) in frequency distribution of intensity values LOG(V) for N cycles (N is a natural number); a step of calculating a knock determination level V(KD) based on the frequency distribution; a step of, when the knock determination level V(KD) is smaller than the maximum value V(MAX), removing V(MAX) from the frequency distribution; and a step of counting the total frequency of removed maximum values V(MAX) as knock occupancy KC. Maximum values V(MAX) are removed until the knock determination level V(KD) and the maximum value V(MAX) coincide, and the knock determination level V(KD) is recalculated.

    摘要翻译: 发动机ECU执行包括基于从爆震传感器发送的信号来计算强度值LOG(V)的步骤的程序; 在N个周期(N是自然数)中确定强度值LOG(V)的频率分布的最大值V(MAX)的步骤; 基于频率分布计算爆震判定电平V(KD)的步骤; 当爆震判定电平V(KD)小于最大值V(MAX)时,从频率分布中去除V(MAX)的步骤; 以及将去除的最大值V(MAX)的总频率计数为敲击占有率KC的步骤。 去除最大值V(MAX),直到爆震判定水平V(KD)和最大值V(MAX)重合为止,并重新计算爆震判定水平V(KD)。