IT981377B - LIQUID LEVEL PROTECTION SYSTEM FOR REFRIGERATION COMPRESSOR - Google Patents

LIQUID LEVEL PROTECTION SYSTEM FOR REFRIGERATION COMPRESSOR

Info

Publication number
IT981377B
IT981377B IT21571/73A IT2157173A IT981377B IT 981377 B IT981377 B IT 981377B IT 21571/73 A IT21571/73 A IT 21571/73A IT 2157173 A IT2157173 A IT 2157173A IT 981377 B IT981377 B IT 981377B
Authority
IT
Italy
Prior art keywords
liquid level
protection system
refrigeration compressor
level protection
refrigeration
Prior art date
Application number
IT21571/73A
Other languages
Italian (it)
Original Assignee
Borg Warner
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 Borg Warner filed Critical Borg Warner
Application granted granted Critical
Publication of IT981377B publication Critical patent/IT981377B/en

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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/246—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices
    • G01F23/247—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
    • 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
    • F25B2700/04—Refrigerant level
IT21571/73A 1972-03-15 1973-03-13 LIQUID LEVEL PROTECTION SYSTEM FOR REFRIGERATION COMPRESSOR IT981377B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23482272A 1972-03-15 1972-03-15

Publications (1)

Publication Number Publication Date
IT981377B true IT981377B (en) 1974-10-10

Family

ID=22882972

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21571/73A IT981377B (en) 1972-03-15 1973-03-13 LIQUID LEVEL PROTECTION SYSTEM FOR REFRIGERATION COMPRESSOR

Country Status (8)

Country Link
US (1) US3744267A (en)
JP (1) JPS5330364B2 (en)
AU (1) AU471560B2 (en)
CA (1) CA972855A (en)
DE (1) DE2311821C3 (en)
FR (1) FR2176125B1 (en)
GB (1) GB1389767A (en)
IT (1) IT981377B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004431A (en) * 1975-05-22 1977-01-25 The Johnson Corporation Control for cooling unit
US4090371A (en) * 1975-11-24 1978-05-23 Technological Enterprises Corp. Monitor and control for refrigeration system
DE2639019C3 (en) * 1976-08-30 1981-09-03 Danfoss A/S, 6430 Nordborg Chiller
US4220041A (en) 1977-04-07 1980-09-02 Potter Bronson M Alien liquid detector and control
US4285207A (en) * 1978-07-31 1981-08-25 Diesel Kiki Company, Ltd. Air conditioning apparatus comprising refrigerant shortage sensor
JPH0539414Y2 (en) * 1985-02-25 1993-10-06
FR2618537B1 (en) * 1987-07-24 1989-09-15 Unite Hermetique Sa HERMETIC MOTOR COMPRESSOR WITH IMPROVED SECURITY
US5062277A (en) * 1990-10-29 1991-11-05 Carrier Corporation Combined oil heater and level sensor
JP2952839B2 (en) * 1991-08-29 1999-09-27 株式会社ゼクセル Startup control device for compressor
US5289692A (en) * 1993-01-19 1994-03-01 Parker-Hannifin Corporation Apparatus and method for mass flow control of a working fluid
WO1994017346A1 (en) * 1993-01-19 1994-08-04 Parker-Hannifin Corporation System for controlling flow of working fluids
ES2128555T3 (en) * 1993-01-19 1999-05-16 Parker Hannifin Corp CONDITIONING PERCEPTION SYSTEM TO CONTROL WORK FLUIDS.
US5335513A (en) * 1993-01-19 1994-08-09 Parker-Hannifin Corporation Apparatus and method for detecting characteristics of a working fluid
US5884494A (en) * 1997-09-05 1999-03-23 American Standard Inc. Oil flow protection scheme
US6091218A (en) * 1998-11-04 2000-07-18 Ritch; Harold D. Energy conservation circuit and method for use with multi-phase motors used to power a variable load
US6460354B2 (en) 2000-11-30 2002-10-08 Parker-Hannifin Corporation Method and apparatus for detecting low refrigerant charge
US20080000246A1 (en) * 2006-06-28 2008-01-03 Computime, Ltd. Conveying Temperature Information in a Controlled Variable Speed Heating, Ventilation, and Air Conditioning (HVAC) System
US7874724B2 (en) * 2007-04-11 2011-01-25 Trane International Inc. Method for sensing the liquid level in a compressor
US9181939B2 (en) * 2012-11-16 2015-11-10 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
US9341187B2 (en) 2013-08-30 2016-05-17 Emerson Climate Technologies, Inc. Compressor assembly with liquid sensor
US9353738B2 (en) 2013-09-19 2016-05-31 Emerson Climate Technologies, Inc. Compressor crankcase heating control systems and methods
WO2016071947A1 (en) * 2014-11-04 2016-05-12 三菱電機株式会社 Refrigeration cycle device and abnormality detection system for refrigeration cycle device
JP6305569B2 (en) * 2015-01-16 2018-04-04 三菱電機株式会社 Compressor
US10125768B2 (en) 2015-04-29 2018-11-13 Emerson Climate Technologies, Inc. Compressor having oil-level sensing system
CN114034140A (en) * 2021-11-29 2022-02-11 四川虹美智能科技有限公司 Defrosting method and device

Also Published As

Publication number Publication date
GB1389767A (en) 1975-04-09
FR2176125A1 (en) 1973-10-26
DE2311821C3 (en) 1979-09-13
CA972855A (en) 1975-08-12
AU5272773A (en) 1974-08-29
DE2311821A1 (en) 1973-10-04
JPS5330364B2 (en) 1978-08-26
JPS48102307A (en) 1973-12-22
AU471560B2 (en) 1976-04-29
DE2311821B2 (en) 1979-01-11
FR2176125B1 (en) 1975-10-31
US3744267A (en) 1973-07-10

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