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公开(公告)号：US10190717B1
公开(公告)日：2019-01-29
申请号：US15689175
申请日：2017-08-29
IPC分类号： F16L55/052 , G01F1/22
摘要： A method of damping pulsations produced by an engine or other driver, so that gas flow can more accurately be measured by a gas flow meter. A damping device is placed between the driver and the flow meter, and has an enclosed volume, an input tube, and an output tube. Particular dimensions of the damping device, namely the volume of the chamber and the diameter and length of the input tube, are calculated to result in a desired damping efficiency.
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2.发明授权System and method for measuring rotation speed and direction of tappets (lifters) of an engine valve train 有权用于测量发动机气门机构的挺杆（升降器）的转速和方向的系统和方法公开(公告)号：US09316509B2
公开(公告)日：2016-04-19
申请号：US13975665
申请日：2013-08-26
发明人： Gregory A. T. Hansen , Peter M. Lee
IPC分类号： G01D5/245
CPC分类号： G01D5/2451
摘要： A method of measuring direction of rotation of a tappet of an engine valve train. Two opposing notches are machined or otherwise formed in the outer surface of the tappet. Two sensors proximate the outer surface of the tappet are operable to detect the change in distance resulting from the notches as the tappet rotates. There is a predetermined difference angle of separation between the arc distance between the notches and the arc distance between the sensors. Each sensor outputs a square wave output having pulses whose width represents detection of the notches by the sensor. The location of the pulses of the two square wave outputs is compared to determine direction of rotation of the tappet.
摘要翻译： 一种测量发动机气门机构的挺杆旋转方向的方法。 在挺杆的外表面上加工或以其他方式形成两个相对的凹口。 靠近挺杆的外表面的两个传感器可操作以检测当挺杆旋转时由凹口产生的距离变化。 在凹口之间的弧距与传感器之间的弧距之间存在预定的分离角度。 每个传感器输出具有脉冲宽度表示由传感器检测出凹口的脉冲的方波输出。 将两个方波输出的脉冲的位置进行比较，以确定挺杆的旋转方向。
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公开(公告)号：US10830668B2
公开(公告)日：2020-11-10
申请号：US15589231
申请日：2017-05-08
发明人： Craig M. Wall , Peter M. Lee
摘要： An engine vibration imager and method of testing engine stability. An accelerometer, mounted to an engine block, is configured to detect engine vibration and generate a signal indicative of detected vibration. An amplifier, electrically coupled to the accelerometer, is configured to amplify the signal indicative of detected vibration. A light indicator, electrically coupled to the amplifier, is configured to emit light upon receiving the amplified signal. The engine vibration imager also includes an indicator disk including timing marks on a first surface of the indicator disk. The indicator disk is rotatable by the crankshaft and light emitted from the light indicator is visible at the first surface of the indicator disk and indicates on the indicator disk a point in the combustion cycle in which engine vibration is detected.
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公开(公告)号：US10048165B2
公开(公告)日：2018-08-14
申请号：US15350761
申请日：2016-11-14
摘要： A testing rig and method of testing a bearing with the rig, wherein the rig includes a bearing housing, wherein said bearing housing includes an opening and a drive shaft extending into said opening, wherein the drive shaft is rotatable around a bearing axis. The testing rig also includes a vertical actuator mounted on the bearing housing for applying a vertical load to the bearing housing and a horizontal actuator mounted on the bearing housing for applying a horizontal load to the bearing housing. In addition, the testing rig includes a first misalignment actuator coupled to the first actuator for applying a first misalignment load to the bearing housing and a second misalignment actuator coupled to the bearing housing for applying a second misalignment load to the bearing housing.
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