| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Compressor diagnostic system | EP04023650.7 | 2002-03-27 | EP1493981A2 | 2005-01-05 | Jayanth, Nagaraj; Pham, Hung M. |
A refrigeration/air conditioning system includes a compressor (10) having a motor protector (54) which stops the compressor's motor when it senses an out of specification condition. A diagnostic system (100) of the refrigeration/ air conditioning system monitors the status of the motor protector (54). The diagnostic system (100) includes logic circuitry (104) that diagnoses the type of problem the compressor (10) or the system is having based upon the running times and status of the motor in conjunction with the times and status of the tripped' motor protector (54): The diagnostic system (100) also includes either a discharge pressure sensor (330) or a condenser temperature sensor (332), an ambient air sensor (334) and a voltage sensor (402,404). The sensors (330,332,334,402,404) provide information to the diagnostic system (100) which enables it to determine where a system fault has occurred. |
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| 182 | Vacuum pump status evaluation system | EP97305848.0 | 1997-08-01 | EP0828332B1 | 2004-05-06 | Konishi, Satoshi |
| 183 | Compressor diagnostic system | EP02251531.6 | 2002-03-05 | EP1245912A3 | 2002-12-04 | Jayanth, Nagaraj; Millet, Hank E. |
A compressor (10) includes a motor protector (54) which stops the compressor's motor when it senses an out of specification condition. A diagnostic system (100) monitors the status of the motor protector (54). The diagnostic system (100) includes logic circuitry (104) that diagnoses the type of problem the compressor (10) is having based upon the running times and status of the motor in conjunction with the times and status of the motor protector (54). |
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| 184 | Vacuum pump status evaluation system | EP97305848.0 | 1997-08-01 | EP0828332A1 | 1998-03-11 | Konishi, Satoshi |
A vacuum pump system comprising a vacuum pump and associated motor to drive a rotor therein, means to measure the rotational torque and/or the current of the motor, whereby pump monitoring can be effected. |
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| 185 | APPARATUS FOR A REFRIGERATION SYSTEM AND METHOD | EP07811712.4 | 2007-09-07 | EP2069638B1 | 2018-05-23 | PHAM, Hung M.; JAYANTH, Nagaraj |
| A compressor includes a shell, a compression mechanism, a motor, a data module, and a compressor controller. The data module includes a processor and a memory. The compressor controller includes a processor and a memory. The data module receives sensed data, stores sensed data in the memory, and communicates sensed data to the compressor controller. The compressor controller controls a capacity of the compressor based on the sensed data and is operable to communicate with a system controller of a refrigeration system. | ||||||
| 186 | CURRENT CONTROL VIA SPEED CONTROL FOR DRIVING SCREW COMPRESSOR UNDER COLD CONDITIONS | EP12797123.2 | 2012-03-13 | EP2718568B1 | 2018-05-02 | HAMDAN, Majed, M. |
| When starting a screw-type air compressor in sub-zero conditions, current spikes are mitigated by detecting an over-current condition and/or a below-threshold temperature, and a warm-up routine is initiated in which compressor motor speed is ramped in a sawtooth fashion between two speeds that are substantially lower than a nominal operating speed of the compressor motor. In this manner, the internal components of the compressor are warmed prior to fully starting the compressor, which mitigates current spikes, reduces blown fuses, and extends the life of the compressor motor and other compressor components. | ||||||
| 187 | Operation control device and method of vacuum pumps | EP07017322.4 | 2007-09-04 | EP1906024B1 | 2017-06-28 | Nakayama, Takamitsu; Satoh, Kazuaki |
| 188 | Compressor diagnostic system | EP05027990.0 | 2002-03-05 | EP1659291A3 | 2016-08-03 | Jayanth, Nagaraj; Millet, Hank E |
A compressor includes a motor protector which stops the compressor's motor when it senses an out of specification condition. A diagnostic system monitors the status of the motor protector. The diagnostic system includes logic circuitry that diagnoses the type of problem the compressor is having based upon the running times and status of the motor in conjunction with the times and status of the motor protector.
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| 189 | DIAGNOSTIC SYSTEM | EP10778239 | 2010-05-18 | EP2433007A4 | 2015-12-09 | PHAM HUNG M; JAYANTH NAGARAJ |
| A diagnostic system for a compressor is provided. The compressor includes a compression mechanism and a motor. The diagnostic system includes processing circuitry and memory and may be operable to differentiate between a low-side fault and a high-side fault by monitoring a rate of current rise drawn by the motor for a first predetermined time period following compressor startup. The diagnostic system may be operable to predict a severity level of a compressor condition based on a fault history stored in the memory. | ||||||
| 190 | PUMPING SYSTEM AND METHOD OF OPERATION | EP06726746.8 | 2006-04-13 | EP1875075B1 | 2015-09-30 | BRUCE, Simon Harold |
| 191 | CURRENT CONTROL VIA SPEED CONTROL FOR DRIVING SCREW COMPRESSOR UNDER COLD CONDITIONS | EP12797123 | 2012-03-13 | EP2718568A4 | 2015-05-20 | HAMDAN MAJED M |
| When starting a screw-type air compressor in sub-zero conditions, current spikes are mitigated by detecting an over-current condition and/or a below-threshold temperature, and a warm-up routine is initiated in which compressor motor speed is ramped in a sawtooth fashion between two speeds that are substantially lower than a nominal operating speed of the compressor motor. In this manner, the internal components of the compressor are warmed prior to fully starting the compressor, which mitigates current spikes, reduces blown fuses, and extends the life of the compressor motor and other compressor components. | ||||||
| 192 | SYSTEM AND METHOD FOR COMPRESSOR MOTOR PROTECTION | EP13736303.2 | 2013-01-11 | EP2805053A1 | 2014-11-26 | WALLIS, Frank S.; ROZSNAKI, Joseph James |
| A system includes a refrigerant compressor including an electric motor, a current sensor that measures current flow to the electric motor, a switching device configured to close and open to allow and prevent current flow to the electric motor, respectively, a maximum continuous current (MCC) device that includes a resistance corresponding to a maximum continuous current for the electric motor, and a motor protection module. The motor protection module communicates with the MCC device, the current sensor, and the switching device and determines a first MCC value for the electric motor as a function of the resistance of the MCC device. The motor protection module also selectively sets a predetermined MCC to the first MCC and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC. | ||||||
| 193 | PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING | EP12708616.3 | 2012-02-22 | EP2678594A2 | 2014-01-01 | GRIMES, David, J. |
| Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump. | ||||||
| 194 | A CONTROL SYSTEM AND METHOD FOR PROTECTION AGAINST BREAKAGE OF LUBRICANT FILM IN COMPRESSOR BEARINGS. | EP06721637.4 | 2006-04-27 | EP1875077B1 | 2011-10-05 | KLEIN, Fabio Henrique; ANDRICH, Roberto; SCHWARZ, Marcos Guilherme |
| The present invention relates to a control system for protection against breakage of the lubricating-oil film in the bearings of hermetic compressors, as well as to a control method that has the objective of guaranteeing that a variable-capacity compressor should be maintained above a minimum rotation in order to prevent the oil film close to the respective bearing from breaking. One of the forms of achieving the objectives of the present invention is by means of a control system for protection against break of the lubricating-oil film in bearings of hermetic compressors, a microprocessor (10) actuating a set of switches (SW2M) selectively, so as to generate a rotation at the motor-compressor assembly (20, 21 ) , the compressor (21 ) having a minimum rotation (RPMmin) of the compressor (21) so that the oil film will not be broken. | ||||||
| 195 | Synchronous induction motor | EP06018387.8 | 2002-03-11 | EP1746706B1 | 2011-07-06 | Yanashima, Toshihito; Igarashi, Keijiro; Takezawa, Masaaki; Arai, Kazuhiko; Murata, Eiichi; Onodera, Noboru; Koiso, Shigemi; Enomoto, Kazuhiro; Nakayama, Yoshitomo |
| 196 | Operation control device and method of vacuum pumps | EP07017322.4 | 2007-09-04 | EP1906024A2 | 2008-04-02 | Nakayama, Takamitsu; Satoh, Kazuaki |
An operation control devices and operation methods thereof so as to eliminate the difficulties in such a case of introduction of vacuum sensors and/or inverter control is disclosed. The disclosure relates to a control of plural sets of vacuum pumps. In order to comply with the subjects to overcome the difficulties, the disclosure proposes to utilize current detection approach instead of direct pressure detection approach, while showing how to estimate a vacuum degree achieved under the operation of the pumps as well as presenting a method on the control of the number of pumps. It is also described how organically a current detecting device, a vacuum degree estimating device, a working pump control device and related methods to satisfy the subjects are linked.
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| 197 | Pompage à vide avec limitation d'énergie | EP06300288.5 | 2006-03-27 | EP1710440A3 | 2008-02-06 | Rival, Jean-Luc |
Un dispositif de pompage à vide selon l'invention comprend un moteur (1) entraînant une pompe mécanique sèche (2) multi-étagée dans laquelle les étages (5, 6, 7, 8) sont connectés successivement en parallèle puis en série, selon plusieurs configurations successives que l'on choisit chacune pour optimiser le débit de pompage dans la plage de pression en cours. Cela permet de descendre rapidement la pression dans une enceinte (100), tout en réduisant d'environ 40 % le volume de la pompe et l'énergie consommée par rapport à une pompe traditionnelle de débit suffisant pour atteindre la même rapidité de pompage.
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| 198 | Synchronous induction motor | EP06018388.6 | 2002-03-11 | EP1750347A2 | 2007-02-07 | Yanashima, Toshihito; Igarashi, Keijiro; Takezawa, Masaaki; Arai, Kazuhiko; Murata, Eiichi; Onodera, Noboru; Koiso, Shigemi; Enomoto, Kazuhiro; Nakayama, Yoshitomo |
A synchronous induction motor comprising a stator having a stator winding, a rotor having a rotor yoke mounted on a shaft for rotation in the stator, a secondary conductor positioned around the rotor yoke, and a permanent magnet received in the rotor yoke, wherein a magnetic field produced by the permanent magnet does not extend through the shaft.
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| 199 | Synchronous induction motor | EP06018387.8 | 2002-03-11 | EP1746706A2 | 2007-01-24 | Yanashima, Toshihito; Igarashi, Keijiro; Takezawa, Masaaki; Arai, Kazuhiko; Murata, Eiichi; Onodera, Noboru; Koiso, Shigemi; Enomoto, Kazuhiro; Nakayama, Yoshitomo |
A synchronous induction motor is disclosed. It comprises a stator equipped with a stator winding, a rotor rotating in the stator, a plurality of secondary conductors positioned around a rotor yoke constituting the rotor and which is formed by die casting, end rings which are positioned on the peripheral portions of both end surfaces of the rotor yoke and which are integrally formed with the secondary conductors by die casting, a permanent magnet inserted in a slot formed such that is penetrates the rotor yoke and a pair of end surface members which is formed of a non-magnetic material and which closes the openings of both ends of the slot in which the permanent magnet has been inserted. The two end surface members are secured to the rotor yoke by the two end rings when the secondary conductors and the end rings are formed.
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| 200 | Pompage à vide avec limitation d'énergie | EP06300288.5 | 2006-03-27 | EP1710440A2 | 2006-10-11 | Rival, Jean-Luc |
Un dispositif de pompage à vide selon l'invention comprend un moteur (1) entraînant une pompe mécanique sèche (2) multi-étagée dans laquelle les étages (5, 6, 7, 8) sont connectés successivement en parallèle puis en série, selon plusieurs configurations successives que l'on choisit chacune pour optimiser le débit de pompage dans la plage de pression en cours. Cela permet de descendre rapidement la pression dans une enceinte (100), tout en réduisant d'environ 40 % le volume de la pompe et l'énergie consommée par rapport à une pompe traditionnelle de débit suffisant pour atteindre la même rapidité de pompage.
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