Method and apparatus for real time compensation of fluid compressibility
in high pressure reciprocating pumps
    1.
    发明授权
    Method and apparatus for real time compensation of fluid compressibility in high pressure reciprocating pumps 失效
    用于实时补偿高压复合泵中流体可压性的方法和装置

    公开(公告)号:US5108264A

    公开(公告)日:1992-04-28

    申请号:US570183

    申请日:1990-08-20

    Abstract: The invention is a method and apparatus for significantly improving the performance of a reciprocating pump by delivering the pumping fluid at a desired pressure and flow rate with minimal flow fluctuations. The compressibility of the pumping fluid directly effects volumetric flow rate and mass flow rate. The method includes the step of sensing various pump parameters related to said compressibility and adjusting the pumping speed to make appropriate accommodations. In particular, the compressibility of the pumping fluid is effected by the adiabatic heating of the pumping fluid during compression, variations in pumping fluid density, leaks in the check valves of cylinder/piston seals and the primary and secondary switching losses in the fluid flow occurring when the primary and secondary pistons reverse direction.

    Abstract translation: 本发明是通过以最小的流动波动以期望的压力和流速递送泵送流体来显着地改善往复式泵的性能的方法和装置。 泵送流体的压缩性直接影响体积流量和质量流量。 该方法包括检测与所述压缩性相关的各种泵参数并调节泵送速度以适当调节的步骤。 特别地,泵送流体的压缩性通过压缩期间泵送流体的绝热加热,泵送流体密度的变化,气缸/活塞密封件的止回阀中的泄漏以及流体流动中的主要和次要切换损失来实现 当主活塞和次级活塞反转时。

    METHOD AND SYSTEM FOR RECIPROCATING COMPRESSOR STARTING
    2.
    发明申请
    METHOD AND SYSTEM FOR RECIPROCATING COMPRESSOR STARTING 审中-公开
    压缩机起动方法及系统

    公开(公告)号:US20130280095A1

    公开(公告)日:2013-10-24

    申请号:US13857334

    申请日:2013-04-05

    Abstract: Systems and methods of the invention may overcome a higher than normal starting torque for in a reciprocating, electric motor driven air compressor for a vehicle. A detection component can be configured to detect a stall condition for a reciprocating compressor based on a force from compressed air being compressed into a reservoir of the reciprocating compressor. Based upon the detected stall condition, a controller can reverse direction or increase torque to alleviate the stall condition. In the reverse direction mode, the controller component can change a direction of a piston rotation. In the torque increase mode, the controller increases a number of poles for the motor, a line voltage, or a volt/hertz.

    Abstract translation: 本发明的系统和方法可克服用于车辆的往复式,电动马达驱动的空气压缩机中的高于正常起动转矩。 检测部件可以被配置为基于来自被压缩到往复式压缩机的容器中的压缩空气的力来检测往复式压缩机的失速状态。 基于检测到的失速状态,控制器可以反转方向或增加扭矩以减轻失速状况。 在反方向模式下,控制器部件可以改变活塞旋转的方向。 在转矩提升模式下,控制器增加电机的极数,线路电压或伏特/赫兹。

    Method and apparatus for analyzing the operating condition of a machine
    3.
    发明授权
    Method and apparatus for analyzing the operating condition of a machine 失效
    用于分析机器的运行状况的方法和装置

    公开(公告)号:US5112196A

    公开(公告)日:1992-05-12

    申请号:US631872

    申请日:1990-12-21

    Applicant: David N. Schuh

    Inventor: David N. Schuh

    Abstract: A method and apparatus for analyzing the operating condition of a machine, such as a reciprocating compressor (10), is provided. The method comprises testing for fluid flow across the closed suction and discharge valves (30-33), as well as leakage across the piston (16), when the machine is in a non-operating condition. The test apparatus may be removable attached externally to the machine by connection to the Kiene head end indicator cock (22) and the crank end indicator cock (24) or the apparatus may be built in internally of the machine.

    Abstract translation: 提供了用于分析诸如往复式压缩机(10)的机器的操作状态的方法和装置。 该方法包括当机器处于非操作状态时,测试穿过闭合的抽吸和排出阀(30-33)的流体流动以及穿过活塞(16)的泄漏。 测试装置可以通过连接到基诺头端指示器旋塞(22)和曲柄端指示器旋塞(24)而外部附接到机器,或者该设备可以内置在机器的内部。

    Liquid feeding device
    4.
    发明授权

    公开(公告)号:US12092099B2

    公开(公告)日:2024-09-17

    申请号:US16612380

    申请日:2017-07-03

    Abstract: A liquid feeding device includes a primary plunger pump; a secondary plunger pump connected downstream; a check valve provided between the primary plunger pump and the secondary plunger pump; a primary pressure sensor that detects a pressure in the pump chamber of the primary plunger pump; a liquid feeding control part configured to control operations of the primary plunger pump and the secondary plunger pump; and a liquid leakage detector configured to detect liquid leakage in the check valve based on a change in an output value of the primary pressure sensor during the waiting time. The liquid feeding control part is configured to control the operation of the primary plunger pump so that a waiting time, where the primary plunger pump stops without operating, is present while a discharge operation by the secondary plunger pump is performed after a suction by the primary plunger pump is completed.

    SYSTEM AND METHOD FOR A COMPRESSOR
    8.
    发明申请
    SYSTEM AND METHOD FOR A COMPRESSOR 有权
    压缩机的系统和方法

    公开(公告)号:US20130294938A1

    公开(公告)日:2013-11-07

    申请号:US13866670

    申请日:2013-04-19

    Abstract: Systems and methods of the invention relate to diagnosing a compressor. A method may include operating a compressor to compress air from a first stage compressor into an intermediate stage reservoir, to deliver air from the intermediate stage reservoir to a second stage compressor, and to further compress the air in the second stage compressor into a primary reservoir, monitoring an intermediate stage pressure of the intermediate stage reservoir, and identifying a condition of the compressor through recognition of a change in the monitored intermediate stage pressure during a time period in which the compressor is operated. A vehicle system is also provided including an engine, a compressor operatively connected to the engine, and a controller that is operable to identify a condition of the compressor.

    Abstract translation: 本发明的系统和方法涉及诊断压缩机。 方法可以包括操作压缩机以将空气从第一级压缩机压缩到中间级储存器中,以将空气从中间级储存器输送到第二级压缩机,并且将第二级压缩机中的空气进一步压缩成主储层 监测中间级储存器的中间级压力,以及通过在压缩机运行的时间段期间通过识别所监测的中间级压力的变化来识别压缩机的状态。 还提供了一种车辆系统,其包括发动机,可操作地连接到发动机的压缩机以及可操作以识别压缩机的状况的控制器。

    SYSTEM AND METHOD FOR A COMPRESSOR
    10.
    发明申请
    SYSTEM AND METHOD FOR A COMPRESSOR 审中-公开
    压缩机的系统和方法

    公开(公告)号:US20130294934A1

    公开(公告)日:2013-11-07

    申请号:US13866435

    申请日:2013-04-19

    Abstract: Systems and methods of the invention relate to diagnosing a compressor. A method may include monitoring a pressure of compressed air within a reservoir, actuating a piston within a cylinder of the compressor, and detecting a leak condition of an exhaust valve of the cylinder through recognition of a change in the monitored pressure of the compressed air within the reservoir during a time period in which the piston is actuated. A system is also disclosed including an engine, a compressor operatively connected to the engine, and a controller that is operable to determine a condition of the compressor.

    Abstract translation: 本发明的系统和方法涉及诊断压缩机。 方法可以包括监测储存器内的压缩空气的压力,致动压缩机的气缸内的活塞,以及通过识别压缩空气的被监视的压力的变化来检测气缸的排气阀的泄漏状况 在活塞被致动的时间段期间的储存器。 还公开了一种还包括发动机,可操作地连接到发动机的压缩机和可操作以确定压缩机的状况的控制器的系统。

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