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    • 3. 发明申请
    • SYSTEM AND METHOD FOR POSITION CONTROL OF A MECHANICAL PISTON IN A PUMP
    • 泵中机械活塞位置控制的系统与方法
    • US20120070313A1
    • 2012-03-22
    • US13301516
    • 2011-11-21
    • George GonnellaJames CedroneIraj Gashgaee
    • George GonnellaJames CedroneIraj Gashgaee
    • F04B49/06
    • F04B17/03F04B25/00F04B49/065Y10S417/90
    • Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities.
    • 本文公开的系统和方法的实施例利用无刷直流电动机(BLDCM)来驱动泵送系统中的单级或多级泵,以实时,平稳地运动,以及对流体运动进行非常精确和可重复的位置控制, 分配量,用于半导体制造。 BLDCM可以使用位置传感器来实现位置反馈到执行定制的面向场的控制方案的处理器。 本发明的实施例可以通过根据底层功能的关键性,通过自定义控制方案增加和减少BLDCM的工作频率,而不会不期望地损害分配泵的精确位置控制而不发生损害。 该控制方案可以以非常低的速度运行BLDCM,同时保持恒定的速度,这使得泵送系统能够以较小的变化,大幅度增加的分配性能和操作能力在宽范围的速度下运行。
    • 5. 发明申请
    • System and method for position control of a mechanical piston in a pump
    • 泵中机械活塞的位置控制系统和方法
    • US20070128048A1
    • 2007-06-07
    • US11602485
    • 2006-11-20
    • George GonnellaJames CedroneIraj Gashgaee
    • George GonnellaJames CedroneIraj Gashgaee
    • F04B49/06
    • F04B17/03F04B25/00F04B49/065Y10S417/90
    • Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities.
    • 本文公开的系统和方法的实施例利用无刷直流电动机(BLDCM)来驱动泵送系统中的单级或多级泵,以实时,平稳地运动,以及对流体运动进行非常精确和可重复的位置控制, 分配量,用于半导体制造。 BLDCM可以使用位置传感器来实现位置反馈到执行定制的面向场的控制方案的处理器。 本发明的实施例可以通过根据底层功能的关键性,通过自定义控制方案增加和减少BLDCM的工作频率,而不会不期望地损害分配泵的精确位置控制而不发生损害。 该控制方案可以以非常低的速度运行BLDCM,同时保持恒定的速度,这使得泵送系统能够以较小的变化,大幅度增加的分配性能和操作能力在宽范围的速度下运行。
    • 7. 发明申请
    • SYSTEM AND METHOD FOR DETECTING AIR IN A FLUID
    • 用于检测流体中的空气的系统和方法
    • US20140303791A1
    • 2014-10-09
    • US14239737
    • 2012-08-17
    • Traci L. BatchelderJames Cedrone
    • Traci L. BatchelderJames Cedrone
    • G05D9/12G05D7/06
    • G05D9/12F04B13/00F04B49/065F04B53/06F04B2205/03G05D7/0617
    • Embodiments can detect air in a pumping system. A portion of the system may be isolated from other components located upstream or downstream. The isolated portion may include a chamber, tubing, lines, valves or other components of a pump. In one embodiment, the difference between the starting pressure and an ending pressure taken after a piston has moved a predetermined distance. The pressure difference can be compared with an expected value established for the particular system set up and/or fluid property to detect the presence of air in the system. In some embodiments, a distance between the starting and ending positions of a pump component may be determined after a predetermined pressure difference has been achieved. The distance can be compared with an expected distance to detect the presence of air in the system.
    • 实施例可以检测泵送系统中的空气。 系统的一部分可以与位于上游或下游的其它部件隔离。 隔离部分可以包括泵的腔室,管道,管线,阀或其它部件。 在一个实施例中,起动压力和在活塞已经移动预定距离之后所采取的结束压力之间的差异。 压力差可以与为特定系统建立的预期值和/或流体性质进行比较,以检测系统中空气的存在。 在一些实施例中,泵部件的起始位置和结束位置之间的距离可以在实现预定的压力差之后确定。 该距离可以与预期距离进行比较,以检测系统中空气的存在。
    • 9. 发明授权
    • System and method for position control of a mechanical piston in a pump
    • 泵中机械活塞的位置控制系统和方法
    • US08678775B2
    • 2014-03-25
    • US13301516
    • 2011-11-21
    • George GonnellaJames CedroneIraj Gashgaee
    • George GonnellaJames CedroneIraj Gashgaee
    • F04B35/04
    • F04B17/03F04B25/00F04B49/065Y10S417/90
    • Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities.
    • 本文公开的系统和方法的实施例利用无刷直流电动机(BLDCM)来驱动泵送系统中的单级或多级泵,以实时,平稳地运动,以及对流体运动进行非常精确和可重复的位置控制, 分配量,用于半导体制造。 BLDCM可以使用位置传感器来实现位置反馈到执行定制的面向场的控制方案的处理器。 本发明的实施例可以通过根据底层功能的关键性,通过自定义控制方案增加和减少BLDCM的工作频率来减少发热,而不会不期望地损害分配泵的精确位置控制。 该控制方案可以以非常低的速度运行BLDCM,同时保持恒定的速度,这使得泵送系统能够以较小的变化,大幅度增加的分配性能和操作能力在宽范围的速度下运行。