EP2187150A3 - Refrigerating Cycle - Google Patents

Refrigerating Cycle Download PDF

Info

Publication number
EP2187150A3
EP2187150A3 EP09175357.4A EP09175357A EP2187150A3 EP 2187150 A3 EP2187150 A3 EP 2187150A3 EP 09175357 A EP09175357 A EP 09175357A EP 2187150 A3 EP2187150 A3 EP 2187150A3
Authority
EP
European Patent Office
Prior art keywords
temperature
expansion valve
compressor
refrigerant
evaporator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09175357.4A
Other languages
German (de)
French (fr)
Other versions
EP2187150A2 (en
Inventor
Tomonori Shimura
Eiji Fukuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikoki Corp
Original Assignee
Fujikoki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikoki Corp filed Critical Fujikoki Corp
Publication of EP2187150A2 publication Critical patent/EP2187150A2/en
Publication of EP2187150A3 publication Critical patent/EP2187150A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
    • F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Temperature-Responsive Valves (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

A refrigerating cycle capable of certainly and effectively suppressing an excessive increase of refrigerant temperature at a suction side of a compressor without complicating a piping system and a structure of an expansion valve is provided. A refrigerant cycle includes a compressor 101, a condenser 102, an evaporator 103, an internal heat exchanger 104, and an expansion valve 111. In the internal heat exchanger 104, a heat exchange is carried out between a high-temperature refrigerant introduced from the condenser 102 to the expansion valve 111 and a low-temperature refrigerant introduced from the evaporator 103 to the suction side of the compressor 101. In order to detect temperature and/or pressure of a low-temperature refrigerant introduced toward the suction side of the compressor 101 after carrying out the heat exchange in the internal heat exchanger 104, a temperature-sensitive cylinder 70 and/or an external pressure introduction pipe 50 are additionally provided at the expansion valve 111. In the expansion valve 111, a flowing rate of a refrigerant introduced to the evaporator 103 is adjusted responding to temperature and/or pressure of a low-temperature refrigerant after the heat exchange.
EP09175357.4A 2008-11-18 2009-11-09 Refrigerating Cycle Withdrawn EP2187150A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008294844A JP2010121831A (en) 2008-11-18 2008-11-18 Refrigerating cycle

Publications (2)

Publication Number Publication Date
EP2187150A2 EP2187150A2 (en) 2010-05-19
EP2187150A3 true EP2187150A3 (en) 2014-01-15

Family

ID=41818427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175357.4A Withdrawn EP2187150A3 (en) 2008-11-18 2009-11-09 Refrigerating Cycle

Country Status (3)

Country Link
EP (1) EP2187150A3 (en)
JP (1) JP2010121831A (en)
CN (1) CN101737987A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8931305B2 (en) 2010-03-31 2015-01-13 Denso International America, Inc. Evaporator unit
CN102530803B (en) * 2012-01-12 2013-06-05 苏权兴 Refrigerant subpackage equipment
CN103017409B (en) * 2013-01-15 2015-12-02 吴秀华 Efficient energy-saving freezes, heats all-in-one
EP2977244B1 (en) * 2014-07-24 2016-06-29 C.R.F. Società Consortile per Azioni Air conditioning system for motor-vehicles
FR3028015A1 (en) * 2014-10-30 2016-05-06 Valeo Systemes Thermiques THERMAL MANAGEMENT DEVICE FOR A MOTOR VEHICLE
FR3028016A1 (en) * 2014-10-30 2016-05-06 Valeo Systemes Thermiques THERMAL MANAGEMENT DEVICE FOR A MOTOR VEHICLE
CN113654284B (en) * 2020-05-12 2024-06-25 浙江三花商用制冷有限公司 Temperature sensing part and refrigerating system with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06241580A (en) * 1993-02-18 1994-08-30 Nippondenso Co Ltd Freezing cycle device
JP2000356419A (en) * 1999-06-17 2000-12-26 Japan Climate Systems Corp Air conditioner for vehicle
US6460358B1 (en) * 2000-11-13 2002-10-08 Thomas H. Hebert Flash gas and superheat eliminator for evaporators and method therefor
US20070074538A1 (en) * 2005-09-07 2007-04-05 Denso Corporation Refrigeration cycle device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2902853B2 (en) * 1992-04-27 1999-06-07 三洋電機株式会社 Air conditioner
JPH0648275Y2 (en) * 1988-06-13 1994-12-12 三菱重工業株式会社 heat pump
DK0939880T3 (en) * 1996-11-19 2000-09-25 Danfoss As Process for controlling a refrigeration plant, as well as refrigeration plant and expansion valve
JP2000346466A (en) 1999-06-02 2000-12-15 Sanden Corp Vapor compression type refrigerating cycle
JP2007240041A (en) * 2006-03-07 2007-09-20 Tgk Co Ltd Expansion valve
JP2008122034A (en) * 2006-11-15 2008-05-29 Sanden Corp Air conditioner for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06241580A (en) * 1993-02-18 1994-08-30 Nippondenso Co Ltd Freezing cycle device
JP2000356419A (en) * 1999-06-17 2000-12-26 Japan Climate Systems Corp Air conditioner for vehicle
US6460358B1 (en) * 2000-11-13 2002-10-08 Thomas H. Hebert Flash gas and superheat eliminator for evaporators and method therefor
US20070074538A1 (en) * 2005-09-07 2007-04-05 Denso Corporation Refrigeration cycle device

Also Published As

Publication number Publication date
CN101737987A (en) 2010-06-16
JP2010121831A (en) 2010-06-03
EP2187150A2 (en) 2010-05-19

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