Pumping unit for a machine to distribute concrete

    公开(公告)号:US09651033B2

    公开(公告)日:2017-05-16

    申请号:US13813811

    申请日:2011-08-01

    Abstract: A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston.

    METHOD AND A SYSTEM FOR PROTECTING A RESONANT LINEAR COMPRESSOR
    85.
    发明申请
    METHOD AND A SYSTEM FOR PROTECTING A RESONANT LINEAR COMPRESSOR 有权
    用于保护共振线性压缩机的方法和系统

    公开(公告)号:US20170009762A1

    公开(公告)日:2017-01-12

    申请号:US15203346

    申请日:2016-07-06

    Applicant: Whirlpool S.A.

    Abstract: A method for protecting a resonant linear compressor (14) including structural resonance frequencies (wE) and a motor that is fed by feed voltage (Va) that has amplitude (A) and a drive frequency (wA), both controlled according to the equation A.sin(wt). The protection method is configured so as to include the step of preventing feed to the motor at drive frequencies (wA) that have at least one harmonic coinciding tithe the structural resonance frequency (wE) of the resonant linear compressor (14). A protection system of a resonant linear compressor (14) includes an electronic control (30) configured to prevent feed to the motor at the drive frequencies (wA) that have at least one harmonic coinciding with the structural resonance frequency (wE) of the resonant linear compressor (14).

    Abstract translation: 一种用于保护包括结构共振频率(wE)的共振线性压缩机(14)的方法和由具有幅度(A)和驱动频率(wA)的馈送电压(Va)馈送的电动机,两者均根据等式 A.sin(wt)。 保护方法被构造成包括以下驱动频率(wA)防止馈送到电动机的步骤:具有至少一个谐波重合谐振线性压缩机(14)的结构共振频率(wE)的十分之一。 谐振线性压缩机(14)的保护系统包括电子控制器(30),其被配置为防止以与谐振器的结构共振频率(wE)一致的至少一个谐波的驱动频率(wA)馈送到电动机 线性压缩机(14)。

    Dosing pump unit
    86.
    发明授权
    Dosing pump unit 有权
    计量泵单元

    公开(公告)号:US09382904B2

    公开(公告)日:2016-07-05

    申请号:US13579613

    申请日:2011-02-16

    Abstract: A metering pump unit with a metering chamber (6), a positive-displacement body that adjoins the latter and can be moved by a positive-displacement drive (22), as well as a controller (30) for actuating the positive-displacement drive (22). The controller (30) is designed to actuate the positive-displacement drive (22) at least in a specific operating state in such a way that a stroke, in particular a pressure stroke, of the positive-displacement body is started at a first, lower stroke rate, and the stroke rate is increased to a second, elevated stroke rate as the pressure stroke (36) continues. A method is provided for controlling the positive-displacement drive (22) of such a metering pump unit.

    Abstract translation: 具有计量室(6)的计量泵单元,与所述计量腔(6)相邻并且可以通过正位移驱动器(22)移动的正位移体以及用于致动所述正排量驱动器的控制器(30) (22)。 控制器(30)被设计成至少在特定操作状态下致动正位移驱动器(22),使得正位移体的行程,特别是压力冲程开始于第一, 较低的冲程速率,并且随着压力冲程(36)继续,冲程速率增加到第二升高的冲程速率。 提供了一种用于控制这种计量泵单元的正排量驱动(22)的方法。

    Method and apparatus for increasing compressed air efficiency in a pump
    88.
    发明授权
    Method and apparatus for increasing compressed air efficiency in a pump 有权
    提高泵中压缩空气效率的方法和装置

    公开(公告)号:US08608460B2

    公开(公告)日:2013-12-17

    申请号:US13912818

    申请日:2013-06-07

    Abstract: One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump utilizes an air efficiency device in order to optimize the amount of a compressed air in a pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self-adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings is achieved by minimizing the amount of required compressed air.

    Abstract translation: 公开了一种或多种技术和/或系统,用于在泵中提高压缩空气效率,利用空气效率装置以优化泵中的压缩空气的量。 空气效率装置可以允许通过当泵在第一和第二隔膜位置之间移动时减小供应给泵的压缩空气的流量来控制气动隔膜泵的操作。 传感器可用于监测隔膜组件的速度。 反过来,可以进行全位置反馈,以便泵自动调节以确定隔膜组件的最佳或接近最佳的调节点。 因此,通过最小化所需压缩空气的量来实现节省空气。

    DOSING PUMP UNIT
    89.
    发明申请
    DOSING PUMP UNIT 有权
    排水泵单元

    公开(公告)号:US20130058796A1

    公开(公告)日:2013-03-07

    申请号:US13579613

    申请日:2011-02-16

    Abstract: A metering pump unit with a metering chamber (6), a positive-displacement body that adjoins the latter and can be moved by a positive-displacement drive (22), as well as a controller (30) for actuating the positive-displacement drive (22). The controller (30) is designed to actuate the positive-displacement drive (22) at least in a specific operating state in such a way that a stroke, in particular a pressure stroke, of the positive-displacement body is started at a first, lower stroke rate, and the stroke rate is increased to a second, elevated stroke rate as the pressure stroke (36) continues. A method is provided for controlling the positive-displacement drive (22) of such a metering pump unit.

    Abstract translation: 具有计量室(6)的计量泵单元,与所述计量腔(6)相邻并且可以通过正位移驱动器(22)移动的正位移体以及用于致动所述正排量驱动器的控制器(30) (22)。 控制器(30)被设计成至少在特定操作状态下致动正位移驱动器(22),使得正位移体的行程,特别是压力冲程开始于第一, 较低的冲程速率,并且随着压力冲程(36)继续,冲程速率增加到第二升高的冲程速率。 提供了一种用于控制这种计量泵单元的正排量驱动(22)的方法。

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