IT981377B - Sistema di protezione del livel lo del liquido per compressore di refrigerazione - Google Patents
Sistema di protezione del livel lo del liquido per compressore di refrigerazioneInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressor (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
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 (it) | 1974-10-10 |
Family
ID=22882972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21571/73A IT981377B (it) | 1972-03-15 | 1973-03-13 | Sistema di protezione del livel lo del liquido per compressore di refrigerazione |
Country Status (8)
Country | Link |
---|---|
US (1) | US3744267A (de) |
JP (1) | JPS5330364B2 (de) |
AU (1) | AU471560B2 (de) |
CA (1) | CA972855A (de) |
DE (1) | DE2311821C3 (de) |
FR (1) | FR2176125B1 (de) |
GB (1) | GB1389767A (de) |
IT (1) | IT981377B (de) |
Families Citing this family (25)
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 (de) * | 1976-08-30 | 1981-09-03 | Danfoss A/S, 6430 Nordborg | Kältemaschine |
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 (de) * | 1985-02-25 | 1993-10-06 | ||
FR2618537B1 (fr) * | 1987-07-24 | 1989-09-15 | Unite Hermetique Sa | Motocompresseur hermetique a securite amelioree |
US5062277A (en) * | 1990-10-29 | 1991-11-05 | Carrier Corporation | Combined oil heater and level sensor |
JP2952839B2 (ja) * | 1991-08-29 | 1999-09-27 | 株式会社ゼクセル | 圧縮機の起動制御装置 |
WO1994017346A1 (en) * | 1993-01-19 | 1994-08-04 | Parker-Hannifin Corporation | System for controlling flow of working fluids |
US5289692A (en) * | 1993-01-19 | 1994-03-01 | Parker-Hannifin Corporation | Apparatus and method for mass flow control of a working fluid |
US5335513A (en) * | 1993-01-19 | 1994-08-09 | Parker-Hannifin Corporation | Apparatus and method for detecting characteristics of a working fluid |
CA2154261A1 (en) * | 1993-01-19 | 1994-08-04 | Michael Nolan | Conditioning sensing system for controlling working fluids |
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 |
GB2546657B (en) * | 2014-11-04 | 2020-09-02 | Mitsubishi Electric Corp | Refrigeration cycle apparatus, and abnormality detection system for refrigeration cycle apparatus |
EP3246571B1 (de) * | 2015-01-16 | 2020-12-23 | Mitsubishi Electric Corporation | Verdichter |
US10125768B2 (en) | 2015-04-29 | 2018-11-13 | Emerson Climate Technologies, Inc. | Compressor having oil-level sensing system |
CN114034140A (zh) * | 2021-11-29 | 2022-02-11 | 四川虹美智能科技有限公司 | 化霜方法和装置 |
-
1972
- 1972-03-15 US US00234822A patent/US3744267A/en not_active Expired - Lifetime
-
1973
- 1973-02-21 CA CA164,300A patent/CA972855A/en not_active Expired
- 1973-02-26 GB GB932073A patent/GB1389767A/en not_active Expired
- 1973-02-28 AU AU52727/73A patent/AU471560B2/en not_active Expired
- 1973-02-28 JP JP2340273A patent/JPS5330364B2/ja not_active Expired
- 1973-03-09 DE DE2311821A patent/DE2311821C3/de not_active Expired
- 1973-03-13 IT IT21571/73A patent/IT981377B/it active
- 1973-03-15 FR FR7309390A patent/FR2176125B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5330364B2 (de) | 1978-08-26 |
FR2176125A1 (de) | 1973-10-26 |
GB1389767A (en) | 1975-04-09 |
DE2311821B2 (de) | 1979-01-11 |
FR2176125B1 (de) | 1975-10-31 |
CA972855A (en) | 1975-08-12 |
DE2311821C3 (de) | 1979-09-13 |
US3744267A (en) | 1973-07-10 |
AU5272773A (en) | 1974-08-29 |
JPS48102307A (de) | 1973-12-22 |
DE2311821A1 (de) | 1973-10-04 |
AU471560B2 (en) | 1976-04-29 |
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