序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 LOAD/UNLOAD CONTROL METHOD FOR COMPRESSOR SYSTEM US15418326 2017-01-27 US20170218965A1 2017-08-03 Juha Saukko; Markku Lyyjynen; Jukka Tolvanen
The present disclosure describes a load/unload control method for a compressor system with a rotating compressor connected to a pressure vessel. In the method, the present operating state can be monitored on the basis of a monitored/estimated electrical quantity of the compressor system, The method comprises an identification phase and an operational phase. In the identification phase, the compressor is operated at a constant rotational speed to generate two known pressures to the pressure vessel. At least one electrical quantity is monitored, and values of the electrical quantity corresponding to the pressure limits are stored. In the operational phase, reaching of a pressure limit may then be detected by comparing the present value of the monitored electrical quantity to the stored values.
2 System and method of remotely connecting and disconnecting the auxiliary power supply of a frequency inverter for variable capacity compressor employed in cooling systems US14001357 2012-02-25 US09309887B2 2016-04-12 Gunter Johann Maass
System and method of remotely connecting and disconnecting an auxiliary power supply of the frequency inverter for variable capacity compressors employed in cooling systems. The inverter includes a circuit breaker that when it receives an external signal to activate the auxiliary power supply indicating that the auxiliary supply should be connected, the circuit breaker enables the auxiliary power supply, which activates the inverter. The inverter begins sending, continually, the internal maintenance signal to activate the auxiliary supply to the circuit breaker indicating that the auxiliary supply should be kept running, making the circuit breaker maintain the auxiliary power supply enabled. When the circuit breaker receives an external deactivation signal from the auxiliary supply indicating that the auxiliary supply should be disconnected, the inverter stops sending the signal to maintain the auxiliary supply activated to the circuit breaker, and the circuit breaker disables the auxiliary power supply, deactivating the inverter.
3 Hermetic Compressor for Positive Displacement US15981968 2018-05-17 US20180335233A1 2018-11-22 Rodrigo KREMER; Ricardo Mikio DOI; Dietmar Erich Bernhard LILIE
A hermetic compressor for positive displacement is disclosed whose airtight housing is specially altered so that its natural frequencies of vibration are distributed at frequencies above 4200 Hz and whose “capacitance density” is greater than 160 W/L.
4 Gas Compressor US15761987 2015-11-13 US20180291901A1 2018-10-11 Toshiaki YABE; Tomoo SUZUKI; Yuuji ITOU; Kohei SAKAI
In order to reduce operation in a rotation-prohibited frequency range and to prevent resonance in a gas compressor wherein inverter control is performed, this gas compressor has: a compressor main body that compresses a gas; a motor that rotationally drives the compressor main body; an inverter that changes the rotational speed of the motor; a check valve arranged downstream from the compressor main body; a pressure detection means that detects load-side pressure downstream from the check valve; and a control device that, in accordance with the pressure detected by the pressure detection means, controls the frequency output by the inverter. The control device performs a control whereby compressed gas having a prescribed pressure is generated/maintained by increasing/decreasing the frequency, and when the frequency that generates the compressed gas having the prescribed pressure includes a specific frequency, the inverter's output frequency is increased or decreased when the pressure detected by the pressure detection means reaches a pressure corresponding to a frequency that has a more constant pressure width than the prescribed pressure and does not include the specific frequency.
5 GAS TURBINE ENGINE FUEL SYSTEM US14694403 2015-04-23 US20150315980A1 2015-11-05 Huw Llewelyn EDWARDS; Stephen Mark HUSBAND; John James Anthony CULLEN
The present application discloses a fuel system for a gas turbine engine. The engine includes a main alternating current electrical generator driven by an engine shaft such that the electrical output frequency of the electrical generator varies in dependence on shaft rotational speed. The fuel system includes a variable flow fuel pump for providing a fuel flow to the engine, a frequency and/or voltage controller configured to provide electrical power having at least one of a predetermined output frequency and a predetermined voltage, and a variable speed electric motor configured to drive the fuel pump. The electric motor includes an induction motor having a stator and at least a first rotor, the stator having first and second sets of stator windings. Each set of stator windings is configured to impart a torque on the rotor in use.
6 SYSTEM AND METHOD OF REMOTELY CONNECTING AND DISCONNECTING THE AUXILIARY POWER SUPPLY OF A FREQUENCY INVERTER FOR VARIABLE CAPACITY COMPRESSOR EMPLOYED IN COOLING SYSTEMS US14001357 2012-02-25 US20140105757A1 2014-04-17 Gunter Johann Maass
System and method of remotely connecting and disconnecting an auxiliary power supply of the frequency inverter for variable capacity compressors employed in cooling systems. The inverter includes a circuit breaker that when it receives an external signal to activate the auxiliary power supply indicating that the auxiliary supply should be connected, the circuit breaker enables the auxiliary power supply, which activates the inverter. The inverter begins sending, continually, the internal maintenance signal to activate the auxiliary supply to the circuit breaker indicating that the auxiliary supply should be kept running, making the circuit breaker maintain the auxiliary power supply enabled. When the circuit breaker receives an external deactivation signal from the auxiliary supply indicating that the auxiliary supply should be disconnected, the inverter stops sending the signal to maintain the auxiliary supply activated to the circuit breaker, and the circuit breaker disables the auxiliary power supply, deactivating the inverter.
7 容積式の密閉型圧縮機 JP2018091356 2018-05-10 JP2018193999A 2018-12-06 ホドリゴ・クレメル; リカルド・ミキオ・ドイ; ディートマー・エリッヒ・ベルンハルト・リリー
【課題】生じた支配的な作動音が人間の聴覚であまり知覚されない周波数範囲にある、容積式の密閉型圧縮機を開示する。
【解決手段】問題の本発明は、冷凍圧縮機の技術分野に関する。
容積式の密閉型圧縮機が開示されており、その気密ハウジングは、振動のその固有振動数が4200Hzより大きい周波数で分布され、その「容量密度」が160W/Lよりも大きいように特に変更される。
【選択図】図1
8 スクロール圧縮機の制御方法及び装置 JP2012085174 2012-04-04 JP6026763B2 2016-11-16 柏原 辰樹; 吉田 浩; 小林 孝次
9 GAS TURBINE ENGINE FUEL SYSTEM EP15164822.7 2015-04-23 EP2940272A1 2015-11-04 Edwards, Huw; Husband, Stephen; Cullen, John

The present application discloses a fuel system for a gas turbine engine (10). The engine (10) comprises a main alternating current electrical generator (118) driven by an engine shaft (26, 28, 30) such that the electrical output frequency of the electrical generator (118) varies in dependence on shaft (26, 28, 30) rotational speed. The fuel system comprises a variable flow fuel pump (110) for providing a fuel flow to the engine, a frequency and / or voltage controller (114) configured to provide electrical power having at least one of a predetermined output frequency and a predetermined voltage, and a variable speed electric motor (112) configured to drive the fuel pump (110). The electric motor (112) comprises an induction motor having a stator (152) and at least a first rotor (150), the stator (152) having first and second sets (156, 158) of stator windings. Each set of stator windings (156, 158) is configured to impart a torque on the rotor (150) in use. The first set of stator windings (156) is supplied with electrical power having the output frequency of and voltage supplied by the main generator (118) and the second set of stator windings (158) is supplied with electrical power from the frequency and / or voltage controller (114).

10 LOAD/UNLOAD CONTROL METHOD FOR COMPRESSOR SYSTEM EP16153122.3 2016-01-28 EP3199813A1 2017-08-02 Saukko, Juha; Lyyjynen, Markku; Tolvanen, Jukka

The present disclosure describes a load/unload control method for a compressor system with a rotating compressor connected to a pressure vessel. In the method, the present operating state can be monitored on the basis of a monitored/estimated electrical quantity of the compressor system. The method comprises an identification phase and an operational phase. In the identification phase, the compressor is operated at a constant rotational speed to generate two known pressures to the pressure vessel. At least one electrical quantity is monitored, and values of the electrical quantity corresponding to the pressure limits are stored. In the operational phase, reaching of a pressure limit may then be detected by comparing the present value of the monitored electrical quantity to the stored values.

11 The systems and methods of remote connection and remote disconnection of the auxiliary power source for the frequency inverter for variable capacity compressor in the cooling system JP2013554753 2012-02-25 JP2014507624A 2014-03-27 ジョハン マース ギュンテル
【課題】本願発明は、冷却システムで採用される可変容量コンプレッサのための周波数インバータの補助電源(19)を遠隔的に接続し切断するシステムおよび方法に関する。 【解決手段】ここで、このインバータは、それが外部信号を受信するときに、その補助電源(19)が接続されるべきであることを示す補助電力源(30)を起動させるように動作する回路ブレーカ(10)を備える。 この回路ブレーカ(10)が、前記インバータの運転を起動する前記補助電力源(19)の運転を可能にし、インバータが送信を開始する。 連続的に、前記回路ブレーカ(10)へ、補助電源が運転を維持するべきであることを示す前記補助電源(40)を起動させる前記内部メンテナンス信号は、回路ブレーカ(19)に対して、補助電力源のが運転可能状態を維持させ、回路ブレーカ(10)が、補助電源(30)から補助電源が切断されるべきであることを示す外部非活性化信号を受信するとき、インバータは、前記補助電源を起動させた状態を保つための信号(40)の、前記回路ブレーカへの送信を停止し、そして、回路ブレーカ(10)は、補助電力源(19)を使用不可にして、前記インバータの運転を停止状態にする。
【選択図】図5
12 Control method and device for scroll compressor JP2012085174 2012-04-04 JP2013213469A 2013-10-17 KASHIWABARA TATSUKI; YOSHIDA HIROSHI; KOBAYASHI KOJI
PROBLEM TO BE SOLVED: To provide a control method and a device for a scroll compressor capable of stably and securely discharging oil when started.SOLUTION: When a scroll compressor is started, an inverter control circuit 200 controls an inverter circuit 100 so as to stop an orbiting scroll member 95 during a first predetermined period of time in a predetermined rotation position, then controls an output frequency of the inverter circuit 100 so as to output during a second predetermined period of time within a first range of the frequency lower than the minimum frequency of operation and discharges the oil, and then controls the output frequency of the inverter circuit so as to be increase to the target frequency.
13 Method and device for controlling positive displacement fluid machine JP17542995 1995-06-19 JPH094591A 1997-01-07 KAWAGUCHI KYOJI; KON AKIHIRO
PURPOSE: To provide an operating method so that the process value is within the allowable range while the capacity of a Positive displacement pump is fully demonstrated without repeating ON/OFF of the pump. CONSTITUTION: The fluid is boosted or transferred using a Positive displacement fluid machine 3 to handle the gas or liquid. An AC motor 4 to drive the volume type fluid machine 3 and a frequency converting device 5 capable of adjusting the number of revolution to the range higher than the power supply frequency are provided, and the number of revolution is adjusted so that the input current to the motor is constant irrespective of the change in the operation pressure of the Positive displacement fluid machine.
14 주파수 인버터의 보조 전원 공급기를 원격적으로 연결 및 분리하는 시스템 및 방법 KR1020137023545 2012-02-23 KR1020140074866A 2014-06-18 마스,건터요한
본 발명은 냉각 시스템에 채택된 가변 용량 압축기를 위한 주파수 인버터의 보조 전원 공급기(19)를 원격적으로 연결 및 분리하는 시스템 및 방법에 관한 것으로, 인버터는 보조 전원 공급기(19)가 연결되어져야 함을 나타내는 보조 전원 공급기를 활성화하는 신호(30)를 수신할 때 작용하는 회로 차단기(10)를 구비하여 구성되고, 회로 차단기(10)는, 인버터의 가동을 활성화하는, 보조 전원 공급기(19)의 가동을 가능하게 하고, 인버터는 보조 전원 공급기가 가동을 유지해야 함을 나타내는 회로 차단기(10)로 보조 전원 공급기를 활성화하는 내부 지속 신호(40)를 계속해서 송신하는 것을 시작하고, 회로 차단기가 사용가능하게 되는 보조 전원 공급기(19)를 유지하게 하고, 회로 차단기(10)가 보조 전원 공급기가 분리되어져야 함을 나타내는 보조 전원 공급기로� �터의 외부 비활성화 신호(30)를 수신할 때, 인버터는 회로 차단기(10)로 활성화된 보조 전원 공급기를 유지하는 신호(40)를 송신하는 것을 중지하고, 회로 차단기(10)는 보조 전원 공급기(19)를 사용불가능하게 하고, 인버터의 가동을 비활성화시킨다.
15 용적식 밀폐형 압축기 KR1020180056960 2018-05-18 KR1020180127241A 2018-11-28
발명의특허: "용적식밀폐형압축기" 본발명은냉동압축기의기술분야에관한것이다. 특히밀폐하우징이변경되어, 밀폐하우징의고유진동수가 4200Hz 초과의주파수범위에서분포되고, 용량밀도(capacitance density)는 160W/L보다크도록변경된다.
16 HERMETIC COMPRESSOR FOR POSITIVE DISPLACEMENT EP18172286.9 2018-05-15 EP3404263A1 2018-11-21 KREMER, Rodrigo; DOI, Ricardo Mikio; LILIE, Dietmar Erich Bernhard

The invention in question pertains to the technological field of refrigeration compressors.

A hermetic compressor for positive displacement is disclosed whose airtight housing is specially altered so that its natural frequencies of vibration are distributed at frequencies above 4200 Hz and whose "capacitance density" is greater than 160 W/L.

17 ANTI-RIPPLE INJECTION METHOD AND APPARATUS AND CONTROL SYSTEM OF A PUMP EP14817204 2014-06-27 EP3014122A4 2017-03-15 CHEN YILUN; CHENG XIAOMENG
An anti-ripple injection method for injecting an anti-ripple signal into a control system of a pump is disclosed. The control system controls an electric motor via an electric motor drive, and the electric motor drives the pump. The anti-ripple signal causes pressure ripples in the pump output to be at least partially cancelled. The anti-ripple injection method comprises: injecting an anti-ripple signal of any waveform into the control system, the anti-ripple signal being represented by the following equation: f(θ)=ΣmAmcos(mθ+θm), wherein θ is the rotation angle of the motor shaft, m is the order of a signal harmonic in the anti-ripple signal, Am and θm are parameters with respect to the mth signal harmonic. A control system of a pump including the anti-ripple injection apparatus, and a pump system including the control system are also disclosed.
18 GAS TURBINE ENGINE FUEL SYSTEM EP15164822.7 2015-04-23 EP2940272B1 2016-07-20 Edwards, Huw; Husband, Stephen; Cullen, John
19 ANTI-RIPPLE INJECTION METHOD AND APPARATUS AND CONTROL SYSTEM OF A PUMP EP14817204.2 2014-06-27 EP3014122A1 2016-05-04 CHEN, Yilun; CHENG, Xiaomeng
An anti-ripple injection method for injecting an anti-ripple signal into a control system of a pump is disclosed. The control system controls an electric motor via an electric motor drive, and the electric motor drives the pump. The anti-ripple signal causes pressure ripples in the pump output to be at least partially cancelled. The anti-ripple injection method comprises: injecting an anti-ripple signal of any waveform into the control system, the anti-ripple signal being represented by the following equation: f(θ)=ΣmAmcos(mθ+θm), wherein θ is the rotation angle of the motor shaft, m is the order of a signal harmonic in the anti-ripple signal, Am and θm are parameters with respect to the mth signal harmonic. A control system of a pump including the anti-ripple injection apparatus, and a pump system including the control system are also disclosed.
20 Control method for displacement-type fluid machine, and apparatus thereof EP96109849.8 1996-06-19 EP0750116B1 2001-05-23 Kawaguchi, Kyoji; Ushitora, Akihiro
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