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    Temperature tripping device
    1.
    发明授权
    Temperature tripping device 有权
    温度跳闸装置

    公开(公告)号：US07570002B2

    公开(公告)日：2009-08-04

    申请号：US12044149

    申请日：2008-03-07

    Applicant: Xiaoming Peng

    Inventor： Xiaoming Peng

    IPC: G05B5/00

    CPC classification number: G01K3/005 ,  G01K15/00

    Abstract: The invention relates to a temperature tripping device for reliably shutting down a load, especially a motor, having at least one input for receiving at least one temperature-dependent sensor signal as an input signal, a first evaluation circuit for generating a first output signal if the input signal reaches a preset value, and means for generating a trip signal if the output signal is generated. In addition, a second, redundant, evaluation channel is provided which is supplied with the same input signal as the first evaluation channel and which generates a second output signal if the input signal reaches the preset value, wherein the means for generating a trip signal are connected to the two evaluation channels and generate the trip signal if at least one of the two output signals is generated.

    Abstract translation: 本发明涉及一种用于可靠地关闭负载，特别是电动机的温度跳闸装置，其具有用于接收至少一个依赖于温度的传感器信号作为输入信号的至少一个输入端，用于产生第一输出信号的第一评估电路，如果 输入信号达到预设值，如果产生输出信号，则产生跳闸信号的装置。 此外，提供第二冗余评估通道，其提供与第一评估通道相同的输入信号，并且如果输入信号达到预设值则产生第二输出信号，其中用于产生跳闸信号的装置是 连接到两个评估通道，并且如果产生两个输出信号中的至少一个，则产生跳闸信号。

    Method for the protection of electric motors from critical operating states
    2.
    发明授权
    Method for the protection of electric motors from critical operating states 有权

    公开(公告)号：US10389293B2

    公开(公告)日：2019-08-20

    申请号：US15061278

    申请日：2016-03-04

    Applicant: Kriwan Industrie-Elektronik GmbH

    Inventor： Xiaoming Peng

    IPC: H02P29/02 ,  H02P29/00 ,  H02H7/08 ,  H02P1/02

    Abstract: Method for the protection of electric motors from critical operating states wherein, as the electric motor is operating, a motor current value and/or a motor voltage value is/are measured and compared with a permissible operating range wherein an output signal is generated when leaving the permissible operating range and, while the electric motor is operating, the permissible operating range is determined and adjusted continuously from the measured motor current value and/or from the measured motor voltage value.

    Machine having at least one motor and one machine protection circuit
    4.
    发明授权
    Machine having at least one motor and one machine protection circuit 有权

    公开(公告)号：US10666040B2

    公开(公告)日：2020-05-26

    申请号：US15285681

    申请日：2016-10-05

    Applicant: KRIWAN Industrie-Elektronik GmbH

    Inventor： Christian Ellwein

    IPC: H02H7/08 ,  H02K11/20 ,  H02P29/64 ,  H02H1/00

    Abstract: A machine, specifically a pump, a compressor, an agitator or a hoist, includes at least one motor and one machine protection circuit that includes a measurement device having at least one sensor for monitoring at least one parameter of the machine and includes an analysis device for analysing the parameters measured by the sensor and for activating a machine protection relay for switching off the machine. A switch cabinet positioned away from the machine is provided, and the machine protection circuit is spatially separated by the measurement device being arranged in the machine, and by the analysis device and the machine protection relay being arranged in the switch cabinet.

    Method and device for monitoring an oil level in a machine
    5.
    发明授权
    Method and device for monitoring an oil level in a machine 有权

    公开(公告)号：US10151617B2

    公开(公告)日：2018-12-11

    申请号：US15672372

    申请日：2017-08-09

    Applicant: Kriwan Industrie-Elektronik GmbH

    Inventor： Christian Ellwein ,  Christoph Leja ,  Franz Stoll

    IPC: G01N33/28 ,  G01F23/292 ,  F01M11/06 ,  G01N21/15 ,  G01N21/43 ,  G01N21/552 ,  G01N21/41 ,  F01M11/04

    Abstract: A method for monitoring an oil level in a machine includes transmitting a light beam into an optical system to be reflected or refracted to a receiver to generate a reception signal. The light beam is emitted at a set transmission power, and an oil deficiency is recognized when the reception signal exceeds a predefined level value. The transmission power of the light beam is settable between a minimum and a maximum transmission power, and contamination of the optical system is analyzed by: (a) the transmitter transmits a first light beam at the maximum transmission power to generate a first reception signal, and (b) analyzing the difference between the first reception signal and a second reception signal generated by a light beam at less than the maximum transmission power, the magnitude of the difference representing a measure of the degree of contamination of the optical system.

    Cyber physical system
    6.
    发明授权
    Cyber physical system 有权

    公开(公告)号：US10061635B2

    公开(公告)日：2018-08-28

    申请号：US15349120

    申请日：2016-11-11

    Applicant: Kriwan Industrie-Elektronik GmbH

    Inventor： Christian Ellwein

    IPC: G06F11/07 ,  H04L12/28 ,  H04L29/06

    CPC classification number: G06F11/0772 ,  G06F11/0709 ,  G06F11/0751 ,  G06F21/552 ,  H04L12/2867 ,  H04L63/04

    Abstract: A cyber physical system including at least one monitoring and safety device for monitoring various parameters of a machine with regard to the maintenance of setpoint values and for generating an error signal in the event of an error and a hard-wired interface to the Internet and a transmission and/or reception unit for transmitting and/or receiving data over the Internet, wherein the monitoring or safety device is connected to the transmission and/or reception unit for transmitting the error signal over the Internet. The hard-wired interface is connected to a controllable switch for physical disconnection and enabling of the connection between the cyber physical system and the Internet, and the cyber physical system has at least one control unit connected to the monitoring or control device for triggering the controllable switch for brief enabling of the connection between the cyber physical system and the Internet.

    Measurement circuit
    7.
    发明授权
    Measurement circuit 有权

    公开(公告)号：US09863816B2

    公开(公告)日：2018-01-09

    申请号：US14718169

    申请日：2015-05-21

    Applicant: KRIWAN Industrie-Elektronik GmbH

    Inventor： Xiaoming Peng ,  Ulf Kretschmer

    IPC: G01K7/18 ,  G01K7/16 ,  G01K13/00 ,  H02P3/06 ,  G01K3/00 ,  G01K7/22 ,  H02K11/25

    CPC classification number: G01K7/16 ,  G01K3/005 ,  G01K7/18 ,  G01K7/22 ,  G01K13/00 ,  H02K11/25 ,  H02P3/06

    Abstract: A measurement circuit according to the invention for temperature monitoring has a quantitative temperature sensor and at least one qualitative temperature sensor, the quantitative temperature sensor and the at least one qualitative temperature sensor being connected in series, the quantitative temperature sensor having a consistent characteristic line which increases in a strictly monotonous manner or a consistent characteristic line which decreases in a strictly monotonous manner and being dedicated to the precise temperature measurement, and the qualitative temperature sensor having a nominal response temperature at which the resistance value changes in a non-linear manner and being dedicated to the monitoring of limit temperatures.

    Wind sensor
    8.
    发明授权
    Wind sensor 有权

    公开(公告)号：US09746488B2

    公开(公告)日：2017-08-29

    申请号：US14449384

    申请日：2014-08-01

    Applicant: Kriwan Industrie-Elektronik GmbH

    Inventor： Friedrich Kriwan ,  Eduard Elfenbein

    IPC: G01P13/02 ,  G01P13/00 ,  G01K7/16 ,  G01P5/07

    CPC classification number: G01P13/006 ,  G01K7/16 ,  G01P5/07 ,  G01P13/02

    Abstract: A wind sensor has a housing and a wind detection element, which is rotatably mounted on the housing and is formed by a wind wheel having a cup-star including a plurality of cups, wherein at least one ohmic heating element is incorporated in the wind wheel. Structures are provided for transferring energy between the housing and the ohmic heating element rotating with the wind wheel. The structures can include a primary coil arranged in the housing and a secondary coil arranged in the wind wheel, wherein the secondary coil is connected to the ohmic heating element. The plurality of cups of the wind wheel are each mounted by way of flat webs, wherein the webs extend into the cups and divide the cups into two regions, and the at least one heating element is embedded in the webs and extends into the region of the cups.

    METHOD FOR CONTROLLING A COMPRESSOR OF A REFRIGERATION SYSTEM COMPRISING A MOTOR, AND A COMPRESSOR OF A REFRIGERATION SYSTEM
    9.
    发明申请
    METHOD FOR CONTROLLING A COMPRESSOR OF A REFRIGERATION SYSTEM COMPRISING A MOTOR, AND A COMPRESSOR OF A REFRIGERATION SYSTEM 有权
    用于控制包括电动机的制冷系统的压缩机的方法和制冷系统的压缩机

    公开(公告)号：US20150316304A1

    公开(公告)日：2015-11-05

    申请号：US14761977

    申请日：2014-02-10

    Applicant: KRIWAN INDUSTRIE-ELEKTRONIK GMBH

    Inventor： Kurt Jansen

    IPC: F25B49/02 ,  F25B13/00

    CPC classification number: F25B49/02 ,  F04B49/03 ,  F04B49/06 ,  F04B49/065 ,  F04B49/225 ,  F25B13/00

    Abstract: A method for controlling a compressor of a refrigeration system wherein refrigerant flow through the compressor is controlled by at least one valve, whereby the valve is opened or closed in a cycle of consecutive time intervals of an identical length, so that the valve is either completely closed or completely open during a time interval, whereby a. determining a percentage capacity for the compressor corresponding to the current refrigeration requirement of a refrigeration location, b. determining the open time percentage of the valves over a number of time intervals, c. opening the valve is opened for the following time interval when the ratio of the percentage capacity is greater than that of the open time percentage previously determined, and d. closing the valve for the following time interval when the ratio of the percentage capacity is smaller than that of the open time percentage of the valves previously determined.

    Abstract translation: 一种用于控制制冷系统的压缩机的方法，其中通过压缩机的制冷剂流动由至少一个阀控制，由此阀以相同长度的连续时间间隔的循环打开或关闭，使得阀完全 在一段时间间隔内关闭或完全打开，由此a。 确定与制冷位置的当前制冷要求对应的压缩机的百分比容量，b。 在多个时间间隔内确定阀的打开时间百分比，c。 当百分比容量的比例大于之前确定的打开时间百分比的比率时，打开阀打开以下时间间隔，d。 当百分比容量的比例小于先前确定的阀的打开时间百分比的比率时，关闭阀门以下的时间间隔。

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