JPS5473345A - Coolant control device - Google Patents

Coolant control device

Info

Publication number
JPS5473345A
JPS5473345A JP14029477A JP14029477A JPS5473345A JP S5473345 A JPS5473345 A JP S5473345A JP 14029477 A JP14029477 A JP 14029477A JP 14029477 A JP14029477 A JP 14029477A JP S5473345 A JPS5473345 A JP S5473345A
Authority
JP
Japan
Prior art keywords
decrease
heater
loading
expansion valve
superheat
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.)
Granted
Application number
JP14029477A
Other languages
Japanese (ja)
Other versions
JPS5823544B2 (en
Inventor
Hai Sato
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP14029477A priority Critical patent/JPS5823544B2/en
Publication of JPS5473345A publication Critical patent/JPS5473345A/en
Publication of JPS5823544B2 publication Critical patent/JPS5823544B2/en
Expired 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
    • 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
    • F25B2341/0681—Expansion valves combined with a sensor the sensor is heated
    • 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
    • F25B2600/00—Control issues
    • F25B2600/21—Refrigerant outlet evaporator temperature

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

PURPOSE:To prevent generation of cold gdraft with a constant flow rate at time of light loading by attaching an electric heater to a heat detecting drum of an automatic expansion valve in order to contrtol to decrease the heater calorific value through the operation of an electric circuit at time of light loading. CONSTITUTION:During the operation of a refrigerator at a standard loading, thyristor output of an electric circuit is increased to increase the heating capacity of a heater 11; thus, the inner pressure of a heat detecting drum 10 is increased, which then adjusts an expansion valve 4 to have the value where the degree of potential superheat controls the degree of superheat of the outlet coolant in an evaporator 5; therefore, the refrigerating machine is operated with the cooling capacity under the full loading condition. The decrease of cooling loading due to the decrease of outside temperature decreases the calorific value of the heater 11 to decrease the inner pressure of the heat detecting drum 10, thus the expansion valve 4 being operated to close. Consequently, the degree of superheat of the outlet coolant in the evaporator 5 increases to cause the decrease in the absorption rate of a compressor 1 and also the decrease in the cooling capacity, thus preventing the source temperature decrease with a constant flow rate.
JP14029477A 1977-11-22 1977-11-22 Refrigerant control device Expired JPS5823544B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14029477A JPS5823544B2 (en) 1977-11-22 1977-11-22 Refrigerant control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14029477A JPS5823544B2 (en) 1977-11-22 1977-11-22 Refrigerant control device

Publications (2)

Publication Number Publication Date
JPS5473345A true JPS5473345A (en) 1979-06-12
JPS5823544B2 JPS5823544B2 (en) 1983-05-16

Family

ID=15265432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14029477A Expired JPS5823544B2 (en) 1977-11-22 1977-11-22 Refrigerant control device

Country Status (1)

Country Link
JP (1) JPS5823544B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115693A1 (en) * 1991-05-14 1992-11-19 Erich Bauknecht Automatic load matching method for refrigeration expansion valve - using setting screw to adjust pressure of valve regulating spring
US5195331A (en) * 1988-12-09 1993-03-23 Bernard Zimmern Method of using a thermal expansion valve device, evaporator and flow control means assembly and refrigerating machine
KR20000042839A (en) * 1998-12-28 2000-07-15 신영주 Heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195331A (en) * 1988-12-09 1993-03-23 Bernard Zimmern Method of using a thermal expansion valve device, evaporator and flow control means assembly and refrigerating machine
DE4115693A1 (en) * 1991-05-14 1992-11-19 Erich Bauknecht Automatic load matching method for refrigeration expansion valve - using setting screw to adjust pressure of valve regulating spring
KR20000042839A (en) * 1998-12-28 2000-07-15 신영주 Heat exchanger

Also Published As

Publication number Publication date
JPS5823544B2 (en) 1983-05-16

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Legal Events

Date Code Title Description
A313 Final decision of rejection without a dissenting response from the applicant

Effective date: 20040302

Free format text: JAPANESE INTERMEDIATE CODE: A313

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20040323