| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Bog operation control method of the multistage positive-displacement compressor | JP2010271577 | 2010-12-06 | JP5261466B2 | 2013-08-14 | 一 高木; 見治 名倉 |
| Provided is an operation control method for a BOG multistage displacement compressor including connected multiple displacement compression units (9,10) for compressing boil off gas (BOG) generated from liquefied natural gas, including: under a predetermined state, performing operation control so that the ratio (load ratio) of a load of a low-pressure stage compression unit (9) to a load of a high-pressure stage compression unit (10) in the BOG multistage displacement compressor is larger than load ratios under states other than the predetermined state. Namely, the BOG multistage displacement compressor is configured so that suction temperature in the low-pressure stage compression unit (9) can be detected, and the predetermined state is set to a state where the detected temperature of the suction temperature is equal to or higher than a set temperature that is preset. According to such a method, even if the low-pressure stage side suction gas has a temperature higher than that in steady operation, the load (gas load) due to a differential pressure between suction gas and discharge gas on the high-pressure stage side can be prevented from exceeding an allowable gas load. | ||||||
| 42 | Operation control method of bog multistage displacement compressor | JP2010271577 | 2010-12-06 | JP2012122352A | 2012-06-28 | TAKAGI HAJIME; NAGURA KENJI |
| PROBLEM TO BE SOLVED: To provide an operation control method of a BOG multistage displacement compressor, which can prevent a load (gas load) generated by a pressure difference between a suction gas at a high-pressure stage side and a discharge gas from exceeding an allowable gas load, even if a temperature of a suction gas at a low-pressure stage side is higher than that at a steady operation.SOLUTION: In the operation control method of the BOG multistage displacement compressor 8 constituted by connecting a plurality of displacement compression parts 9, 10 in order to compress a BOG generated from a liquefied natural gas 1, the BOG multistage displacement compressor is operation-controlled so that a ratio of the load (load ratio) of the low-pressure stage compressor 9 with respect to the load of the high-pressure stage compression part 10 of the BOG multistage displacement compressor 8 becomes larger than a load ratio in the case other than a prescribed state. That is, the BOG multistage displacement compressor is constituted so as to be capable of detecting a suction temperature of the low-pressure stage compression part 9 of the BOG multistage displacement compressor 8, and the prescribed state is brought into a state that the detection temperature of the suction temperature is raised to a temperature not lower than a preset temperature. | ||||||
| 43 | Scroll type compressor | JP2006220822 | 2006-08-14 | JP2006300077A | 2006-11-02 | BASS MARK; DOEPKER ROY J; CAILLAT JEAN-LUC M; WARNER WAYNE R |
| <P>PROBLEM TO BE SOLVED: To adjust a continuous capacity change by a single control mechanism, in a scroll machine. <P>SOLUTION: The relative movement is provided in the axial direction or the radial direction of both scroll members, and a load of the machine is released by releasing sealing of a fluid pocket between both scroll blades. This scroll compressor has: a capacity adjusting device for imparting a signal for indicating capacity reduction; and a motor controller for improving efficiency of a motor while reducing capacity of a compressor by changing an operation parameter of the motor in response to the signal from the capacity adjusting device. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 44 | Scroll type compressor | JP2006220812 | 2006-08-14 | JP4486624B2 | 2010-06-23 | アール ワーナ ウェン; エム カィラト ジーン−ルック; バス マーク; ジェイ ドウプカー ロイ |
| 45 | Adaptive controller for cooling system using a pulse width adjustment duty cycle scroll compressor | JP2000514093 | 1998-09-09 | JP4157275B2 | 2008-10-01 | エム キャイラト，ジーン−ルック; シンフ，アブター; バス，マーク; エム ファム，ハング |
| 46 | Scroll type machine with capacity modulating mechanism | JP31002995 | 1995-11-02 | JPH08334094A | 1996-12-17 | MAAKU BASU; ROI JIEI DOUPUKAA; JIINNRUTSUKU EMU KAIRATO; UEN AARU WAANA |
| PROBLEM TO BE SOLVED: To modulate continuous capacity from 100% full capacity to 0% of a scroll type machine by a single control mechanism. SOLUTION: Axial or radial relative movement between both scroll members 26, 32 is obtained to release sealing of a fluid pocket between both scroll blades to thereby obtain load release of a machine. Relative movement is accomplished by controlling fluid pressure in one chamber between two fluid pressure chambers 56, 58 by a solenoid valve 68 to move one scroll member 32 in one direction or the other direction or moving the scroll member by the other actuator. Capacity is modulated by making machine operation in a loaded state or load released state periodic. It is therefore recommended to use a sensor 82 for sensing the fluctuating condition of an air-conditioning system or the like, and a valve control module 80. In another embodiment, control mechanism is provided to improve motor efficiency during load release operation. | ||||||
| 47 | Compressor with capacity control | US11514055 | 2006-08-31 | US07419365B2 | 2008-09-02 | Hung M Pham; Abtar Singh; Jean-Luc Caillat; Mark Bass |
| A compressor includes an orbiting member and a non-orbiting member mounted relative the orbiting member to define first and second chambers disposed between the orbiting and non-orbiting members. The non-orbiting member forms a seal to generally prevent fluid communication between the first and second chambers when in a first position and breaks the seal to allow fluid communication between the first and second chambers when in a second position. A structure supports the orbiting and non-orbiting members for relative orbital movement therebetween and a time pulsed actuation apparatus is coupled to the structure and configured to selectively break the seal. | ||||||
| 48 | Cooling system with variable capacity control | US11529645 | 2006-09-28 | US20070022771A1 | 2007-02-01 | Hung Pham; Abtar Singh; Jean-Luc Caillat; Mark Bass |
| A system includes a scroll compressor having a first scroll member interleaved with a second scroll member to define at least two moving fluid pockets that decrease in size as they move from a radially outer position to a radially inner position. A valve in fluid communication with the compression chamber is movable between an open state allowing fluid to the compression chamber and a closed state preventing fluid to the compression chamber. A controller continuously cycles the valve between the open state and the closed state at a rate that is faster than a thermal time constant of a load on the system. | ||||||
| 49 | Adaptive control for a cooling system | US10306031 | 2002-11-27 | US20030094004A1 | 2003-05-22 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A method and controller for a refrigerant pressure effecting component of a cooling system includes providing closed loop control over a pressure effecting component based on an error signal, performing a control algorithm that includes at least one programmably adjustable gain factor, and adaptably changing the programmably adjustable gain factor by periodically generating a new gain factor. More specifically, the system and method includes monitoring fluctuation in the error signal and generating a numeric value indicative of the percent fluctuation in the error signal over a predetermined period of time, then fuzzifying a numeric value to generate a set of fuzzy input values. A predetermined set of rules are applied to the fuzzy input values to generate a set of fuzzy output values, which are then defuzzified by a combining operation to yield the new gain factor. | ||||||
| 50 | Refrigeration system and method for controlling defrost | US10306078 | 2002-11-27 | US20030084672A1 | 2003-05-08 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A refrigeration system and method for controlling defrost includes a refrigeration case, an evaporator disposed in the refrigeration case, and a condenser and compressor coupled in fluid communication with the evaporator. The condenser is disposed on the refrigeration case and the compressor is a pulse width modulated variable capacity compressor. The system also includes a controller responsive to a load sensor disposed in the refrigeration case and is coupled to the compressor for providing a variable duty cycle control signal to the compressor, wherein the compressor is modulated between a first capacity and a second capacity while operating to adjust the operating capacity of the refrigeration system. The system further includes a module for periodically defrosting the refrigeration system as a function of duty cycle. | ||||||
| 51 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor | US09886592 | 2001-06-21 | US06467280B2 | 2002-10-22 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A diagnostic system includes a controller adapted for coupling to a compressor or electronic stepper regulator valve. The controller produces a variable duty cycle control signal to adjust the capacity of the compressor or valve position of the electronic stepper regulator valve as a function of demand for cooling. The diagnostic system further includes a diagnostic module coupled to the controller for monitoring and comparing the duty cycle with at least one predetermined fault value indicative of a system fault condition and an alert module responsive to the diagnostic module for issuing an alert signal when the duty cycle bears a predetermined relationship to the fault value. | ||||||
| 52 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor | US09876638 | 2001-06-07 | US06393852B2 | 2002-05-28 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A refrigeration compressor control system includes a controller coupled to a load sensor to produce a variable duty cycle control signal that is a function of demand for cooling. The controller includes a module for establishing a fixed or variable cycle time for the variable duty cycle control signal. The controller is coupled to a compressor to cause the compressor to selectively alternate between first and second states in response to the variable duty cycle control signal, thereby adjusting the capacity of the compressor to the demand for cooling while the compressor is energized. | ||||||
| 53 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor | US09760994 | 2001-01-16 | US20010002239A1 | 2001-05-31 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A control for a refrigeration system serviced by a special pulse width modulated compressor coupled to a condenser and evaporator. The system can be of the distributed type wherein the condenser and compressor may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator. A controller is coupled to a load sensor for producing a variable duty cycle control signal in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic techniques may be utilized in order to provide self adaptive tuning control for the system. | ||||||
| 54 | Compressor control at voltage and frequency extremes of power supply | US09211958 | 1998-12-15 | US06238188B1 | 2001-05-29 | Alexander Lifson |
| A method is presented to prevent compressor damage by reducing compressor load when operating speed either is too low or too high as can be the case at extremes of line frequency and voltage. The speed of the compressor is deduced from the knowledge of compressor load, frequency and voltage. If the compressor speed is too high or too low for a given suction and discharge pressure, the compressor load is reduced to boost the operating speed or to reduce force acting on the bearings. The compressor load reduction may be achieved by actuating an unloader valve, a suction throttling device, or some other load reduction mechanism. | ||||||
| 55 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor | US939779 | 1997-09-29 | US6047557A | 2000-04-11 | Hung M. Pham; Abtar Singh; Jean-Luc M. Caillat; Mark Bass |
| A control for a refrigeration system serviced by a special pulse width modulated compressor coupled to a condenser and evaporator. The system can be of the distributed type wherein the condenser and compressor may be coupled to service a group of adjacent refrigeration cases, wherein each case would have its own evaporator. A controller is coupled to a load sensor for producing a variable duty cycle control signal in which the duty cycle is a function of demand for cooling. Moreover, fuzzy logic techniques may be utilized in order to provide self adaptive tuning control for the system. | ||||||
| 56 | Compressor capacity modulation | US11152836 | 2005-06-15 | USRE44636E1 | 2013-12-10 | Jean-Luc Caillat |
| A pulsed modulated capacity modulation system for refrigeration, air conditioning or other types of compressors is disclosed in which suitable valving is provided which operates to cyclically block flow of suction gas to a compressor. A control system is provided which is adapted to control both the frequency of cycling as well as the relative duration of the on and off time periods of each cycle in accordance with sensed system operating conditions so as to maximize the efficiency of the system. Preferably the cycle time will be substantially less than the time constant of the load and will enable substantially continuously variable capacity modulation from substantially zero capacity to the full capacity of the compressor. Additional controls may be incorporated to modify one or more of the motor operating parameters to improve the efficiency of the motor during periods of reduced load. | ||||||
| 57 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor | US10760173 | 2004-01-16 | USRE42006E1 | 2010-12-28 | Hung M. Pham; Abtar Singh; Jean-Luc Caillat; Mark Bass |
| A diagnostic system includes a controller adapted for coupling to a compressor or electronic stepper regulator valve. The controller produces a variable duty cycle control signal to adjust the capacity of the compressor or valve position of the electronic stepper regulator valve as a function of demand for cooling. The diagnostic system further includes a diagnostic module coupled to the controller for monitoring and comparing the duty cycle with at least one predetermined fault value indicative of a system fault condition and an alert module responsive to the diagnostic module for issuing an alert signal when the duty cycle bears a predetermined relationship to the fault value. | ||||||
| 58 | Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member | US10184227 | 2002-06-27 | USRE40554E1 | 2008-10-28 | Mark Bass; Roy J. Doepker; Jean-Luc M. Caillat; Wayne R. Warner |
| A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. In the second group, a plurality of pin members are moveable from a first and second positions. In a first position the plurality of pin members operably enable the scroll members to orbit and in a second position the pin members restrict the orbiting motion of the first scroll members. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions. | ||||||
| 59 | Cooling system with variable duty cycle capacity control | US10730492 | 2003-12-08 | US07389649B2 | 2008-06-24 | Hung M Pham; Abtar Singh; Jean-Luc Caillat; Mark Bass |
| A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the compressor and valve to vary a cooling capacity of the cooling system in response to the variable duty cycle control signal. The sensor may sense the pressure, temperature, or both. The valve may be a suction-side pressure regulator or a liquid-side expansion valve of the solenoid or stepper type. | ||||||
| 60 | Cooling system with variable duty cycle capacity control | US10730492 | 2003-12-08 | US20040123612A1 | 2004-07-01 | Hung M. Pham; Abtar Singh; Jean-Luc Caillat; Mark Bass |
| A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the compressor and valve to vary a cooling capacity of the cooling system in response to the variable duty cycle control signal. The sensor may sense the pressure, temperature, or both. The valve may be a suction-side pressure regulator or a liquid-side expansion valve of the solenoid or stepper type. | ||||||
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