[특허]Refrigeration system having a variable speed compressor

[미국특허] Refrigeration system having a variable speed compressor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-007/00 F25B-049/02 F25D-011/04
출원번호	US-0649859 (2017-07-14)
등록번호	US-10072876 (2018-09-11)
발명자 / 주소	Wang, Qi Swift, Todd Bair, III, Richard H.
출원인 / 주소	Thermo Fisher Scientific (Asheville) LLC
대리인 / 주소	Wood Herron & Evans LLP
인용정보	피인용 횟수 : 0 인용 특허 : 240

초록 ▼

A two-stage cascade refrigeration system is provided having a first refrigeration stage and a second refrigeration stage. The first refrigeration stage defines a first fluid circuit for circulating a first refrigerant, and has a first compressor, a condenser, and a first expansion device. The second refrigeration stage defines a second fluid circuit for circulating a second refrigerant, with the second refrigeration stage having a second compressor that is a variable speed compressor, a second expansion device, and an evaporator. A heat exchanger is in fluid communication with the first and second fluid circuits to exchange heat between the first and second refrigerants. A controller stages operation of the first and second compressors and runs the second compressor at an initial speed less than a maximum speed initially when a staging protocol is performed during start up or re-starting of the refrigeration system.

대표청구항 ▼

1. A two-stage cascade refrigeration system, comprising: a first refrigeration stage defining a first fluid circuit for circulating a first refrigerant, the first refrigeration stage having a first compressor, a condenser, and a first expansion device in fluid communication with the first fluid circuit;a second refrigeration stage defining a second fluid circuit that is fluidically isolated from the first fluid circuit for circulating a second refrigerant, the second refrigeration stage having a second compressor, a second expansion device, and an evaporator in fluid communication with the second fluid circuit, the second compressor being a variable speed compressor;a heat exchanger in fluid communication with the first and second fluid circuits to exchange heat between the first and second refrigerants;a cabinet having an interior and a door providing access into the interior;a sensor measuring an operational parameter defined by a temperature; anda controller operatively coupled to the first and second compressors for independently controlling operation thereof and operatively coupled to the sensor, wherein when the refrigeration system is initially started or is re-started to provide cooling of the interior of the cabinet, the controller being configured to perform a staging protocol including: starting the first compressor to operate the first refrigeration stage;starting the second compressor at an initial speed that is less than a maximum speed of the second compressor; andincreasing the speed of the second compressor to the maximum speed after operating the second compressor at an initial speed, wherein the controller controls whether the second compressor operates at the initial speed or the maximum speed based upon the measured operational parameter,wherein the operational parameter measured by the sensor and used by the controller is a temperature at the cabinet. 2. The refrigeration system of claim 1, wherein the operational parameter measured by the sensor and used by the controller is a cabinet interior temperature measured within the interior of the cabinet being cooled by the refrigeration system. 3. The refrigeration system of claim 2, wherein the controller is configured to start the second compressor at the initial speed and to not increase the speed of the second compressor to the maximum speed when the cabinet interior temperature exceeds a predetermined threshold value. 4. The refrigeration system of claim 1, wherein in the staging protocol, the controller delays starting of the second compressor after the starting of the first compressor. 5. The refrigeration system of claim 1, wherein in the staging protocol, the controller also controls whether the second compressor operates at the initial speed or the maximum speed based upon operator settings for noise control. 6. The refrigeration system of claim 1, wherein the initial speed of the second compressor defines 50% or less capacity of the maximum speed of the second compressor. 7. The refrigeration system of claim 1, wherein the staging protocol performed by the controller results in lowering a cabinet interior temperature measured within the interior of the cabinet to about −80° C.

이 특허에 인용된 특허 (240) 인용/피인용 타임라인 분석

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Tamaoki Yuichi,JPX ; Sakata Yasushi,JPX, Refrigerating apparatus.
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Hori Yasushi,JPX ; Sada Shinri,JPX, Refrigerating plant.
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Cur, Nihat O.; Kuehl, Steven John; Vonderhaar, John Joseph; Barone, Diego; Bianchi, Lorenzo; Monticelli, Enrica, Refrigeration appliance with optional storage module.
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Heinbokel, Bernd; Gernemann, Andreas; Schierhorn, Uwe, Refrigeration circuit and method for operating a refrigeration circuit.
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Matsuoka Fumio (Kamakura JPX) Negoro Kouichi (Wakayama JPX) Sugimoto Takeshi (Wakayama JPX) Yamaguchi Toshiaki (Wakayama JPX) Yamashita Tetsuya (Wakayama JPX), Refrigeration cycle system.
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Fredric J. Lingelbach ; John F. Lingelbach, Refrigeration system.
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Fujimoto, Shuuji; Yoshimi, Atsushi, Refrigeration system.
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Kawakatsu, Noriyasu; Sugimoto, Takashi; Tanaka, Shigeto, Refrigeration system.
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Kawakatsu, Noriyasu; Tanaka, Shigeto, Refrigeration system.
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Shaw David N. (Unionville CT), Refrigeration system.
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Takenori Mezaki JP; Akitoshi Ueno JP, Refrigeration system.
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Tanimoto, Kenji; Ueno, Takeo; Takegami, Masaaki; Nomura, Kazuyoshi, Refrigeration system.
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Wills Frank E. (York PA) Norbeck Dean K. (York PA), Refrigeration system and method.
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Pham,Hung M.; Warner,Wayne R., Refrigeration system including thermoelectric module.
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Bash, Cullen E.; Beitelmal, Abdlmonem H.; Sharma, Ratnesh K.; Patel, Chandrakant D., Refrigeration system with parallel evaporators and variable speed compressor.
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Bash, Cullen E.; Beitelmal, Abdlmonem H.; Sharma, Ratnesh K.; Patel, Chandrakant D., Refrigeration system with parallel evaporators and variable speed compressor.
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Fredric J. Lingelbach ; John F. Lingelbach, Refrigeration system with purge.
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Leaver, Daniel C.; Billman, Gregory M., Refrigeration systems having prescriptive refrigerant flow control.
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Leaver, Daniel C.; Billman, Gregory M., Refrigeration systems having prescriptive refrigerant flow control.
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Freund, Peter W.; Sjoholm, Lars I., Refrigeration unit apparatus and method.
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Kaga, Shinichi; Hirano, Akihiko; Ueda, Takeshi, Refrigeration unit having variable performance compressor operated based on high-pressure side pressure.
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Noriyasu Kawakatu JP; Akitoshi Ueno JP; Toshiaki Mukaidani JP; Takeo Ueno JP, Refrigerator.
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Matsushima Hiroaki (Ryugasaki JPX) Matsuo Kazuya (Tsukuba JPX) Endoh Kazuhiro (Ibaraki-ken JPX) Iwata Hiroshi (Odawara JPX), Refrigerator and condenser.
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Matsushima Hiroaki,JPX ; Matsuo Kazuya,JPX ; Endoh Kazuhiro,JPX ; Iwata Hiroshi,JPX, Refrigerator and condenser.
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Lee,Tae Hee; Kim,Kyung Sik; Kim,Yang Gyu; Kim,Se Young; Chun,Chan Ho; Lee,Youn Seok, Refrigerator and temperature sensor fixing method in the refrigerator.
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Hyodo Akira,JPX ; Kimura Yoshito,JPX ; Hamano Hiroki,JPX ; Yamada Hiroshi,JPX ; Iwai Haruhiko,JPX ; Fujihashi Makoto,JPX, Refrigerator having a cooler mounted in each of a refrigerator compartment and a freezer compartment.
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Lee, Youn-Seok; Kim, Kyeong-Yun; Chae, Su-Nam; Oh, Min-Kyu; Lee, Jang-Seok, Refrigerator having a variable capacity heater.
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Yasunori,Shunsuke; Tojo,Kenji; Matsunaga,Mutsunori, Scroll compressor and refrigerating system using ammonia group refrigerant.
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Hu, Ziqiang; Brooke, Richard Dana; Rafalovich, Alexander Pinkus; Tummala, Anil Kumar, Sealed system multiple speed compressor and fan control.
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Fischer-Calderon, Ernesto, Self-refrigerated LNG process.
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Crane,Curtis Christian; Lindberg,Gail Elaine, Startup control system and method for a multiple compressor chiller system.
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Pearse ; Jr. Richard H. (La Crosse WI), Stepped capacity constant volume building air conditioning system.
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Rudick, Arthur G.; Berchowitz, David M., Stirling refrigeration system with a thermosiphon heat exchanger.
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Thomas Charles D. ; Broccard Terry J. ; Schaeffer Wayne G. ; Shapiro Doron, Strategic modular secondary refrigeration.
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Crane, Cutis Christian; Federman, Israel, System and method for capacity control in a multiple compressor chiller system.
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Crane,Curtis Christian; Federman,Israel, System and method for capacity control in a multiple compressor chiller system.
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Tolbert, Jr., John Willard; Hix, Scott Garrison; Monk, David Turner; Edwards, Jerry D., System and method for compressor capacity modulation.
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Bush, James W.; Beagle, Wayne P.; Mitra, Biswajit, System and method for controlled expansion valve adjustment.
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Wills,Frank Eugene; Schnetzka,Harold Robert, System and method for increasing output horsepower and efficiency in a motor.
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Price, Brian C.; Winkler, Randal J., System and method for recovering and liquefying boil-off gas.
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Peterson Gregory E., System and method of preventing a surge condition in a vane-type compressor.
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Tolbert, Jr., John W.; Hix, Scott G.; Monk, David T.; Edwards, Jerry D., System for compressor capacity modulation.
상세보기
Moon, Joong-Ki; Kim, Young-Man; Moon, Jae-Myoung; Lee, Jung-Min; Kim, Jong-Youb; Cho, Il-Yong, System for controlling starting of air conditioner and control method thereof.
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Chang, Se-Dong; Kim, Kwang-Woon; Lee, Yoon-Been; Kim, Hyung-Soo; Kim, Sung-Hwan; Oh, Jeong-Eon; Choi, Jae-Heuk; Choi, Song, System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof.
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Ransbarger, Weldon L.; Mock, Jon M., System for enhanced fuel gas composition control in an LNG facility.
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Bean, Jr., John H.; Roesch, James Richard; Dong, Zhihai Gordon; Dill, Stuart Lee, Systems and methods for controlling load dynamics in a pumped refrigerant cooling system.
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Cur, Nihat O.; Kuehl, Steven John; Vonderhaar, John Joseph; Barone, Diego; Bianchi, Lorenzo, Temporary refrigerator storage modules.
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Immink, Darin E.; Peterson, Clinton A.; Veldt, Andrew R., Test chamber with temperature and humidity control.
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Kuehl, Steven John, Thermal cascade system for distributed household refrigeration system.
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Cowans,Kenneth W., Thermal control systems for process tools requiring operation over wide temperature ranges.
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Chen, Yu H.; Liu, Lucy Yi, Transport refrigeration system and method of operation.
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Tolbert ; Jr. John W. ; Young Michael R ; Monk David T ; Loprete Joseph F, Two step power output motor and associated HVAC systems and methods.
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Dain, John F.; Dain, Elizabeth L.; Henneman, Nicholas J., Ultra-low temperature bio-sample storage system.
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Vaynberg Mikhail (411 Hazelwood Dr. San Francisco CA 94127), Universal cooling system automatically configured to operate in compound or single compressor mode.
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Cur, Nihat O.; Kuehl, Steven John; Vonderhaar, John Joseph; Lin, Frank Huangtso, Utilities grid for distributed refrigeration system.
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Conley ; Thomas F. ; Gylland ; Jr. ; Ernest F., Variable capacity multiple compressor refrigeration system.
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Conley ; Thomas F. ; Gylland ; Jr. ; Ernest F. ; Steele ; George E., Variable capacity multiple compressor refrigeration system.
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Singh, Abtar; Mathews, Thomas J.; Brown, III, Frank C.; Gurkan, Ozgur Y., Variable speed condenser fan control system.
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Young I. Cho ; Cheolho Bai KR, Vortex generator to recover performance loss of a refrigeration system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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