-
1.发明申请公开(公告)号：US20070019109A1
公开(公告)日：2007-01-25
申请号：US11186380
申请日：2005-07-21
申请人： Frank Lombardi , John Freed , Martin Isberg
发明人： Frank Lombardi , John Freed , Martin Isberg
IPC分类号： H03L7/00
CPC分类号： H04B1/30 , H03C3/0966 , H03C3/0983 , H03C5/00 , H03L7/185 , H03L7/1974 , H03L7/23
摘要： A method and apparatus for direct-conversion transmission generates a first frequency signal that is non-harmonically related to a transmit frequency signal, divides the first frequency signal to obtain a mixing frequency signal, divides the first frequency signal to obtain an intermediate frequency reference signal, generates the transmit frequency signal by using the mixing frequency signal to downconvert the transmit frequency signal into an intermediate frequency feedback signal, and phase-locks the intermediate frequency feedback signal to the intermediate frequency reference signal. The transmit frequency signal may be phase modulated, and may serve as an input to a saturated-mode power amplifier that can be configured for corresponding amplitude modulation. Alternatively, the un-modulated transmit frequency signal serves as the carrier signal input to a quadrature modulator, which imparts I/Q modulations to it, thereby producing a modulated carrier signal for input to a linear power amplifier.
摘要翻译： 用于直接转换传输的方法和装置产生与发射频率信号非谐波相关的第一频率信号，分频第一频率信号以获得混频信号，分频第一频率信号以获得中频参考信号 通过使用混频信号来生成发送频率信号，以将发送频率信号下变频成中频反馈信号，并将中频反馈信号相位锁定到中频参考信号。 发射频率信号可以是相位调制的，并且可以用作可以被配置用于对应的幅度调制的饱和模式功率放大器的输入。 或者，未调制的发送频率信号用作输入到正交调制器的载波信号，其向其施加I / Q调制，从而产生用于输入到线性功率放大器的调制载波信号。
-
2.发明授权公开(公告)号：US07409192B2
公开(公告)日：2008-08-05
申请号：US11186380
申请日：2005-07-21
申请人： Frank Lombardi , John G. Freed , Martin Isberg
发明人： Frank Lombardi , John G. Freed , Martin Isberg
IPC分类号： H04B1/04
CPC分类号： H04B1/30 , H03C3/0966 , H03C3/0983 , H03C5/00 , H03L7/185 , H03L7/1974 , H03L7/23
摘要： A method and apparatus for direct-conversion transmission generates a first frequency signal that is non-harmonically related to a transmit frequency signal, divides the first frequency signal to obtain a mixing frequency signal, divides the first frequency signal to obtain an intermediate frequency reference signal, generates the transmit frequency signal by using the mixing frequency signal to downconvert the transmit frequency signal into an intermediate frequency feedback signal, and phase-locks the intermediate frequency feedback signal to the intermediate frequency reference signal. The transmit frequency signal may be phase modulated, and may serve as an input to a saturated-mode power amplifier that can be configured for corresponding amplitude modulation. Alternatively, the un-modulated transmit frequency signal serves as the carrier signal input to a quadrature modulator, which imparts I/Q modulations to it, thereby producing a modulated carrier signal for input to a linear power amplifier.
摘要翻译： 用于直接转换传输的方法和装置产生与发射频率信号非谐波相关的第一频率信号，分频第一频率信号以获得混频信号，分频第一频率信号以获得中频参考信号 通过使用混频信号来生成发送频率信号，以将发送频率信号下变频成中频反馈信号，并将中频反馈信号相位锁定到中频参考信号。 发射频率信号可以是相位调制的，并且可以用作可以被配置用于对应的幅度调制的饱和模式功率放大器的输入。 或者，未调制的发送频率信号用作输入到正交调制器的载波信号，其向其施加I / Q调制，从而产生用于输入到线性功率放大器的调制载波信号。
-
公开(公告)号：US20140012484A1
公开(公告)日：2014-01-09
申请号：US13542810
申请日：2012-07-06
IPC分类号： F02D41/22
CPC分类号： F02D41/221 , F02D41/20 , F02D2041/2058 , F02D2041/2093 , F02D2041/224
摘要： A method for fault diagnosis in a fuel injection system having first and second fuel injectors. The method includes initiating a current flow in the first and second fuel injectors. Further, a rise duration of the current flow to reach a threshold level is measured. The method further includes comparing the rise duration and a preset duration. The fuel injection system is controlled based on the comparison.
摘要翻译： 一种具有第一和第二燃料喷射器的燃料喷射系统中的故障诊断方法。 该方法包括在第一和第二燃料喷射器中启动电流。 此外，测量电流达到阈值水平的上升持续时间。 该方法还包括比较上升持续时间和预设持续时间。 基于比较控制燃油喷射系统。
-
公开(公告)号：US20080022973A1
公开(公告)日：2008-01-31
申请号：US11496701
申请日：2006-07-31
CPC分类号： F02D41/3845 , F02D41/123 , F02M59/08 , F02M59/366 , F02M63/0205 , F02M63/0225
摘要： In an engine equipped with a common rail fuel injection system, the engine can sometimes experience an overspeed condition, and the pump may respond to this overspeed condition with self-actuation even in the absence of any control signal. In order to prevent an over pressurization condition, a liquid supply into a pumping chamber of the pump is limited during a retraction stroke of a pump plunger by energizing an electrical actuator coupled to a spill valve, to move the spill valve toward a closed position. The electrical actuator is de-energized during a pumping stroke of the pump plunger to allow the spill valve to more toward an open position. Liquid from the pumping chamber is discharged through the spill valve during the pumping stroke, but over pressurization is avoided by limiting the amount of liquid that can enter the pumping chamber during the retraction stroke.
摘要翻译： 在配有共轨燃油喷射系统的发动机中，发动机有时会经历超速状态，并且即使在没有任何控制信号的情况下，泵也可以用自动致动来响应该超速状态。 为了防止过度加压的情况，通过对连接到溢流阀的电动致动器进行激励，使溢流阀向关闭位置移动，在泵柱塞的回缩行程期间限制泵的泵送室中的液体供应。 在泵柱塞的泵送冲程期间，电致动器被断电以允许溢流阀更向着打开位置。 来自泵送室的液体在泵送冲程期间通过溢流阀排出，但是通过限制在回缩冲程期间可以进入泵送室的液体的量来避免加压。
-
公开(公告)号：US09376977B2
公开(公告)日：2016-06-28
申请号：US13606479
申请日：2012-09-07
CPC分类号： F02D41/1401 , F02D41/3845 , F02D2041/1409 , F02D2041/1418 , F02D2041/142 , F02D2041/1422 , F02D2041/1432 , F02D2200/0602 , F02D2250/31 , F02M59/34 , F02M63/0265
摘要： A common rail fuel system includes a common rail supplied by an inlet metered high pressure pump and fluidly connected to a plurality of zero-leak fuel injectors. An electronic controller controls pressure in the common rail predominantly responsive to a rail pressure error when outside of an overshoot avoidance condition corresponding to the error being less than a first threshold and a time rate of change of the error being greater than a second threshold. Pressure in the common rail is controlled predominantly responsive to the time rate of change of the error during the overshoot avoidance condition.
摘要翻译： 共轨燃料系统包括由入口计量高压泵供应并且流体连接到多个零泄漏燃料喷射器的共轨。 电子控制器主要响应轨道压力误差控制公共轨道中的压力，当超出对应于误差小于第一阈值的过冲回避条件以及误差的时间变化率大于第二阈值时。 共轨中的压力主要受到过冲避免条件下误差变化时间的影响。
-
公开(公告)号：US4311057A
公开(公告)日：1982-01-19
申请号：US154725
申请日：1980-05-30
申请人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Frank Lombardi
发明人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , Frank Lombardi
CPC分类号： F16J15/52
摘要： An hermetic seal 10 for a linear rod 12 having a portion thereof projected axially through a port 20 defined in a wall for a pressure chamber 14 and supported thereby for omni-directional motion. The seal is characterized by a resilient, impervious, cylindrical body having a first section concentrically related to the shaft and integrally affixed thereto comprising a linear ordered array of annular flutes 22, a second section integrally affixed to the wall of the chamber and concentrically related to the port comprising a second linear ordered array of annular flutes 24, and a third section interposed between said first and second sections and integrally affixed thereto in coaxial alignment therewith comprising an annular ordered array of linear flutes 26 concentrically related to the shaft, whereby axial, angular, and pivotal motion of the rod is accommodated.
摘要翻译： 用于直线杆12的气密密封件10，其具有一部分轴向地突出通过限定在用于压力室14的壁中的端口20并由其支撑以进行全方向运动。 密封件的特征在于具有弹性的，不可渗透的圆柱形主体，其具有与轴同心相关的第一部分并且整体固定在其上，其包括环形槽纹22的线性有序阵列，一体地固定到室的壁上的第二部分， 所述端口包括环形槽纹24的第二线性有序阵列，以及置于所述第一和第二部分之间并与其一体地固定到其上的第三部分，其与其同轴对准，包括与所述轴同心相关的线性槽26的环形有序阵列， 容纳杆的角度和枢转运动。
-
公开(公告)号：US08989994B2
公开(公告)日：2015-03-24
申请号：US13542810
申请日：2012-07-06
CPC分类号： F02D41/221 , F02D41/20 , F02D2041/2058 , F02D2041/2093 , F02D2041/224
摘要： A method for fault diagnosis in a fuel injection system having first and second fuel injectors. The method includes initiating a current flow in the first and second fuel injectors. Further, a rise duration of the current flow to reach a threshold level is measured. The method further includes comparing the rise duration and a preset duration. The fuel injection system is controlled based on the comparison.
摘要翻译： 一种具有第一和第二燃料喷射器的燃料喷射系统中的故障诊断方法。 该方法包括在第一和第二燃料喷射器中启动电流。 此外，测量电流达到阈值水平的上升持续时间。 该方法还包括比较上升持续时间和预设持续时间。 基于比较控制燃油喷射系统。
-
公开(公告)号：US20130311067A1
公开(公告)日：2013-11-21
申请号：US13474079
申请日：2012-05-17
申请人： Alan Stockner , Frank Lombardi
发明人： Alan Stockner , Frank Lombardi
CPC分类号： F02B27/02 , F02B45/10 , F02D19/027 , F02D19/0623 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/22 , F02D2041/227 , F02M21/02 , F02M21/0215 , F02M21/0224 , F02M37/04 , F02M43/00 , F02M63/029 , Y02T10/32 , Y02T10/36 , Y02T10/40
摘要： The disclosure describes an engine system having liquid and gaseous fuel systems, each of which injects fuel directly into an engine cylinder. A controller monitors and controls engine operation in a normal mode, during which the engine produces rated power, and in a limp-home mode, which is used when an abnormal operating condition of the gaseous fuel system is present. During limp-home mode operation, the engine uses more liquid fuel and less or no gaseous fuel relative to the normal mode, and produces power that is less than rated power.
摘要翻译： 本公开描述了一种具有液体和气体燃料系统的发动机系统，每个燃料系统将燃料直接喷射到发动机气缸中。 控制器以正常模式监视和控制发动机运转，在正常模式期间，发动机产生额定功率，并且在处于气体燃料系统的异常操作状态时使用的跛行模式。 在跛行模式操作期间，发动机使用更多的液体燃料，并且相对于正常模式使用更少或不少的气体燃料，并且产生小于额定功率的功率。
-
公开(公告)号：US06052636A
公开(公告)日：2000-04-18
申请号：US905510
申请日：1997-08-04
申请人： Frank Lombardi
发明人： Frank Lombardi
CPC分类号： E02F9/123 , E02F9/128 , E02F9/2025 , Y10S388/929
摘要： An apparatus and method for rotatably positioning a machine housing is disclosed. A pump produces pressurized fluid to a motor that responsively rotates the machine housing. A control valve regulates fluid flow from the pump to the motor. A position sensor detects the rotational position of the housing and responsively produces an actual position signal. A device produces a signal indicative of a desired rotational position of the housing. A controller compares the desired and actual position signals, responsively produces an error signal, multiplies the error signal by a variable gain value representative of the housing acceleration and delivers a control signal to the control valve to rotate the housing to the desired position.
摘要翻译： 公开了一种用于可旋转地定位机器壳体的装置和方法。 泵产生加压流体到电动机，其响应地旋转机器壳体。 控制阀调节从泵到电机的流体流量。 位置传感器检测壳体的旋转位置并且响应地产生实际位置信号。 设备产生指示壳体的期望旋转位置的信号。 控制器比较期望和实际位置信号，响应地产生误差信号，将误差信号乘以代表壳体加速度的可变增益值，并将控制信号传送到控制阀以将壳体旋转到期望的位置。
-
公开(公告)号：US09032788B2
公开(公告)日：2015-05-19
申请号：US13446438
申请日：2012-04-13
CPC分类号： F02M65/003 , F02D41/221 , F02D2041/1432 , F02D2041/224
摘要： A common rail fuel system diagnostic algorithm is executed by an engine control and real time to detect and identify a faulty fuel system component. Rail pressure data is processed through a digital resonating filter having a resonance frequency corresponding to a fault signature. A peak magnitude and phase of the output from the digital resonating filter reveals a degradation level of a fuel injector, and a phase of the output identifies which fuel injector is faulted.
摘要翻译： 通过发动机控制和实时执行共轨燃料系统诊断算法来检测和识别故障燃料系统部件。 通过具有对应于故障签名的共振频率的数字谐振滤波器处理轨道压力数据。 来自数字谐振滤波器的输出的峰值幅度和相位显示燃料喷射器的劣化水平，并且输出的相位识别哪个燃料喷射器发生故障。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.019 秒)
