ACTUATOR CONTROL DEVICE AND CONTROL METHOD
    2.
    发明公开

    公开(公告)号:EP3109995A4

    公开(公告)日:2017-12-20

    申请号:EP14882816

    申请日:2014-09-19

    发明人: MIYAMOTO SHOGO

    摘要: The present invention relates to a controller and a control method for an actuator that is driven by a brushless motor. The present invention is to provide the actuator controller for appropriately driving the brushless motor without providing a temperature sensor thereto. The controller for an actuator that is driven by a brushless motor estimates the temperature of the magnet in the brushless motor on the basis of an electric current value and a rotation speed thereof which are obtained by supplying power to rotate the brushless motor in a reverse direction, and limits current flowing through the brushless motor during forward rotation so as to prevent the magnet temperature from rising beyond an allowable maximum temperature. Limiting the current flowing through the brushless motor on the basis of the estimated magnet temperature makes it possible to drive the brushless motor while preventing the magnet temperature from rising beyond the allowable maximum temperature without providing the brushless motor with any temperature sensor for detecting the magnet temperature therein.

    APPARATUS AND METHOD FOR OPERATING A PLURALITY OF HYDRAULIC PUMPS
    4.
    发明公开
    APPARATUS AND METHOD FOR OPERATING A PLURALITY OF HYDRAULIC PUMPS 审中-公开
    VORRICHTUNG UND VERFAHREN ZUM BETRIEB MEHRERER HYDRAULIKPUMPEN

    公开(公告)号:EP3069025A4

    公开(公告)日:2017-09-06

    申请号:EP14857613

    申请日:2014-10-23

    摘要: The problem arises of how to control a plurality of hydraulic pumps to achieve desired performance criteria, such as reduced wear and/or power consumption. The hydraulic pumps are operated in a hydraulic system for delivering hydraulic fluid to a hydraulic motor in a cryogenic pumping apparatus in an engine system fuelled with a gaseous fuel. A controller is operatively connected with the plurality of hydraulic pumps and is programmed to periodically determine a priority for each hydraulic pump as a function of predetermined criteria such as respective cumulative pumping cycles. Higher priority hydraulic pumps are operated before lower priority hydraulic pumps, that is in descending order of priority, to supply hydraulic fluid to the hydraulic motor. Hydraulic pumps are selected to operate according to the desired performance criteria.

    摘要翻译: 问题在于如何控制多个液压泵以实现期望的性能标准,例如减少磨损和/或功耗。 液压泵在用于将液压流体输送到以气体燃料为燃料的发动机系统中的低温泵装置中的液压马达的液压系统中操作。 控制器与多个液压泵可操作地连接并且被编程为根据诸如相应累积泵送循环的预定标准周期性地确定每个液压泵的优先级。 较高优先级的液压泵在较低优先级的液压泵之前运行,即按照优先级从高到低的顺序向液压马达供应液压流体。 选择液压泵根据所需的性能标准进行操作。

    COMPRESSOR
    7.
    发明公开
    COMPRESSOR 有权
    VERDICHTER

    公开(公告)号:EP2527654A4

    公开(公告)日:2017-04-26

    申请号:EP11734681

    申请日:2011-01-19

    申请人: DAIKIN IND LTD

    摘要: It is an object of the present invention to improve the reliability of a compressor by appropriately measuring the temperature inside the compressor. A compressor pertaining to the present invention is equipped with a casing (10), a compression mechanism (15), a drive shaft (17), a main frame (23), a motor (16), a flow path forming member (91), and a temperature measuring mechanism (76). The casing stores lubricating oil in its bottom portion. The compression mechanism compresses refrigerant. The drive shaft drives the compression mechanism. The main frame has the compression mechanism placed on it and supports the drive shaft in such a way that the drive shaft may freely rotate. The motor drives the drive shaft. The flow path forming member forms an oil flow path (92). The oil flow path is a space located in the neighborhood of an inner peripheral surface of the casing and through which lubricating oil that lubricates sliding portions including the compression mechanism and the drive shaft flows. The temperature measuring mechanism is disposed outside the casing. The temperature measuring mechanism measures the temperature of a section of an outer peripheral surface of the casing positioned in the neighborhood of the oil flow path.

    摘要翻译: 本发明的目的是通过适当地测量压缩机内部的温度来提高压缩机的可靠性。 (10),压缩机构(15),驱动轴(17),主框架(23),马达(16),流路形成部件(91) )和温度测量机构(76)。 外壳在其底部储存润滑油。 压缩机构压缩制冷剂。 驱动轴驱动压缩机构。 主框架上放置有压缩机构,并以驱动轴可自由旋转的方式支撑驱动轴。 电机驱动传动轴。 流路形成部件形成油流路(92)。 油流路是位于壳体的内周面附近的用于润滑包含压缩机构和驱动轴的滑动部的润滑油流动的空间。 温度测量机构设置在壳体的外部。 温度测量机构测量位于油流路径附近的壳体的外周面的一部分的温度。

    CONTROLLER OF ELECTRIC COMPRESSOR, START CONTROL METHOD OF ELECTRIC COMPRESSOR
    8.
    发明公开
    CONTROLLER OF ELECTRIC COMPRESSOR, START CONTROL METHOD OF ELECTRIC COMPRESSOR 有权
    控制装置的电动压缩机,并开始控制方法的电动压缩机

    公开(公告)号:EP2221478A4

    公开(公告)日:2017-03-29

    申请号:EP08865133

    申请日:2008-09-25

    IPC分类号: F04B49/06 F04B49/10

    摘要: The present invention has an object to provide a control device for an electric compressor and a start control method of an electric compressor that can smoothly and reliably start the electric compressor even at high temperature. Even in a high temperature state of a power transistor, a rotational speed or an acceleration rate of a motor according to the temperature is set to gradually start the electric compressor. After the commencement of the start, the temperature of the power transistor is repeatedly checked for every predetermined time to update the rotational speed or the acceleration rate of the motor, and the rotational speed or the acceleration rate of the motor is increased according to the temperature of the power transistor, thereby allowing quick start. When a refrigerant starts to flow in a housing of the electric compressor with the start, a control board is cooled and the temperature of the power transistor decreases, and thus a synergistic effect can be obtained.

    Peristaltic pump with linear flow control
    9.
    发明授权
    Peristaltic pump with linear flow control 有权
    蠕动泵具有线性流量控制器

    公开(公告)号:EP2338549B1

    公开(公告)日:2016-10-12

    申请号:EP10192477.7

    申请日:2010-11-24

    IPC分类号: A61M5/142 F04B43/08

    摘要: A peristaltic pump (22) includes a conduit (50) having a first end for receiving a fluid from a reservoir (24) and a second end for delivering the fluid. A plurality of fingers (34) are disposed at respective locations along a segment of the conduit and are configured to alternately compress and release the conduit at the locations. A cyclical pump mechanism (42) is coupled to move the fingers between respective compressed and released positions in a spatio-temporal pattern so as to drive a predetermined quantity of the fluid through the segment of the conduit in each pump cycle. A motor (40) is coupled to drive the pump mechanism. A controller (48) is coupled to activate and deactivate the motor in alternation during each pump cycle with a duty cycle that varies within the pump cycle.

    A METHOD OF CONTROL OF COMPRESSORS WITH MORE THAN TWO CAPACITY STATES
    10.
    发明公开
    A METHOD OF CONTROL OF COMPRESSORS WITH MORE THAN TWO CAPACITY STATES 有权
    VERFAHREN ZUR STEUERUNG VON VERDICHTERN MIT MEHR ALS ZWEIKAPAZITÄTSZUSTÄNDEN

    公开(公告)号:EP3049674A1

    公开(公告)日:2016-08-03

    申请号:EP14703091.0

    申请日:2014-02-07

    申请人: Danfoss A/S

    发明人: PRINS, Jan

    IPC分类号: F04B39/08 F04B49/03 F04B49/02

    摘要: A method of operating a reciprocating compressor for a vapour compression system is disclosed. The reciprocating compressor comprises at least two cylinders and at least two unloaders, each unloader can be operated in an idle mode or in an active mode and therefore the reciprocating compressor can run in more than two capacity states. The capacity states alternates periodically between states in such a way that a substantially continuous range of effective capacities can be obtained while the individual cylinders are evenly loaded.

    摘要翻译: 公开了一种用于控制用于蒸气压缩系统的往复式压缩机的方法。 往复式压缩机包括至少两个气缸和至少两个卸载器,每个卸载器可以在空转模式或活动模式下操作,因此往复式压缩机可以以两个以上的容量状态运行。 容量状态在状态之间周期性地交替,使得在各个气缸均匀加载的同时可以获得基本连续的有效容量范围