IT997377B - Impianto frigorifero a capacita variabile con compressori multi pli - Google Patents
Impianto frigorifero a capacita variabile con compressori multi pliInfo
- Publication number
- IT997377B IT997377B IT41614/73A IT4161473A IT997377B IT 997377 B IT997377 B IT 997377B IT 41614/73 A IT41614/73 A IT 41614/73A IT 4161473 A IT4161473 A IT 4161473A IT 997377 B IT997377 B IT 997377B
- Authority
- IT
- Italy
- Prior art keywords
- pli
- compressors
- variable capacity
- refrigerator system
- capacity refrigerator
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
-
- 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
- F25B31/00—Compressor 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
- F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
-
- 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
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27270472A | 1972-07-17 | 1972-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT997377B true IT997377B (it) | 1975-12-30 |
Family
ID=23040923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT41614/73A IT997377B (it) | 1972-07-17 | 1973-07-16 | Impianto frigorifero a capacita variabile con compressori multi pli |
Country Status (10)
Country | Link |
---|---|
US (2) | US3775995A (de) |
JP (1) | JPS5420020B2 (de) |
AU (1) | AU475453B2 (de) |
BE (1) | BE802373A (de) |
CA (1) | CA990518A (de) |
DE (1) | DE2336369A1 (de) |
ES (1) | ES416944A1 (de) |
FR (1) | FR2193184B1 (de) |
GB (1) | GB1429050A (de) |
IT (1) | IT997377B (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5032550A (de) * | 1973-07-25 | 1975-03-29 | ||
US3885938A (en) * | 1974-01-18 | 1975-05-27 | Westinghouse Electric Corp | Refrigeration system with capacity control |
AT335671B (de) * | 1974-12-20 | 1977-03-25 | Interliz Anstalt | Regeleinrichtung fur eine warmepumpe |
US4191027A (en) * | 1976-07-29 | 1980-03-04 | Kabushiki Kaisah Maekawa Seisakusho | Apparatus for cooling brine |
US4105374A (en) * | 1977-03-28 | 1978-08-08 | Copeland Corporation | Integrated multi-unit refrigeration motor-compressor assembly |
US4205537A (en) * | 1978-12-11 | 1980-06-03 | General Electric Company | Multiple hermetic-motor compressor in common shell |
US4951475A (en) * | 1979-07-31 | 1990-08-28 | Altech Controls Corp. | Method and apparatus for controlling capacity of a multiple-stage cooling system |
US4306420A (en) * | 1979-10-25 | 1981-12-22 | Carrier Corporation | Series compressor refrigeration circuit with liquid quench and compressor by-pass |
US4384462A (en) * | 1980-11-20 | 1983-05-24 | Friedrich Air Conditioning & Refrigeration Co. | Multiple compressor refrigeration system and controller thereof |
JPS57131883A (en) * | 1981-02-06 | 1982-08-14 | Mitsubishi Electric Corp | Parallel compression type refrigerator |
US4418548A (en) * | 1982-03-29 | 1983-12-06 | Trane Cac, Inc. | Variable capacity multiple compressor refrigeration system |
AU561404B2 (en) * | 1983-03-08 | 1987-05-07 | Sanden Corporation | Variable capacity compressor |
US4787211A (en) * | 1984-07-30 | 1988-11-29 | Copeland Corporation | Refrigeration system |
FR2617581B1 (fr) * | 1987-06-30 | 1989-09-29 | Henriot Jean Luc | Installation frigorifique pour un appareil de surgelation et de conservation de produits alimentaires |
JPH01193089A (ja) * | 1988-01-29 | 1989-08-03 | Toshiba Corp | ロータリコンプレッサー |
US5927088A (en) * | 1996-02-27 | 1999-07-27 | Shaw; David N. | Boosted air source heat pump |
US5839886A (en) * | 1996-05-10 | 1998-11-24 | Shaw; David N. | Series connected primary and booster compressors |
US5967761A (en) * | 1997-07-15 | 1999-10-19 | Ingersoll-Rand Company | Method for modulation lag compressor in multiple compressor system |
US6206652B1 (en) | 1998-08-25 | 2001-03-27 | Copeland Corporation | Compressor capacity modulation |
US6276148B1 (en) | 2000-02-16 | 2001-08-21 | David N. Shaw | Boosted air source heat pump |
JP4520608B2 (ja) * | 2000-09-20 | 2010-08-11 | 株式会社日立プラントテクノロジー | スクリュー圧縮装置 |
US6769265B1 (en) | 2003-03-12 | 2004-08-03 | Maytag Corporation | Variable speed refrigeration system |
US7490480B2 (en) * | 2003-03-14 | 2009-02-17 | Maytag Corporation | Variable speed refrigeration system |
US6931871B2 (en) * | 2003-08-27 | 2005-08-23 | Shaw Engineering Associates, Llc | Boosted air source heat pump |
KR101116208B1 (ko) * | 2004-05-17 | 2012-03-06 | 삼성전자주식회사 | 압축기의 제어 장치 및 방법 |
US20060073026A1 (en) * | 2004-10-06 | 2006-04-06 | Shaw David N | Oil balance system and method for compressors connected in series |
US7320720B2 (en) * | 2005-10-17 | 2008-01-22 | Kirk Ticknor | Interlocking filtration device |
US20070187086A1 (en) * | 2006-02-14 | 2007-08-16 | Anatoly Nikolayevich Ivanov | Device for cutting slot-shaped seats in wells by hydro-sandblasting method |
US20080173034A1 (en) * | 2007-01-19 | 2008-07-24 | Hallowell International, Llc | Heat pump apparatus and method |
US8157538B2 (en) | 2007-07-23 | 2012-04-17 | Emerson Climate Technologies, Inc. | Capacity modulation system for compressor and method |
US8192171B2 (en) * | 2009-01-15 | 2012-06-05 | Ingersoll-Rand Company | Compressor system |
ES2623055T3 (es) | 2009-01-27 | 2017-07-10 | Emerson Climate Technologies, Inc. | Sistema y método de descarga para un compresor |
US8011201B2 (en) * | 2009-09-30 | 2011-09-06 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system mounted within a deck |
US8011191B2 (en) | 2009-09-30 | 2011-09-06 | Thermo Fisher Scientific (Asheville) Llc | Refrigeration system having a variable speed compressor |
US10378533B2 (en) | 2011-12-06 | 2019-08-13 | Bitzer Us, Inc. | Control for compressor unloading system |
US8925346B2 (en) | 2012-02-07 | 2015-01-06 | Thermo Fisher Scientific (Asheville) Llc | High performance freezer having cylindrical cabinet |
US10024591B2 (en) * | 2014-05-15 | 2018-07-17 | Lennox Industries Inc. | Sensor failure error handling |
WO2018185514A1 (en) | 2017-04-06 | 2018-10-11 | Carrier Corporation | A method for reducing the maximum inrush current of a compressor system comprising multiple asynchronous electrical motors and a compressor system for implementing this method |
CN113669965A (zh) | 2020-04-30 | 2021-11-19 | 特灵空调系统(中国)有限公司 | 并联压缩机中的ocr控制的系统和方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126713A (en) * | 1964-03-31 | Apparatus and method for preventing refrigerant condensing | ||
US2253623A (en) * | 1937-05-18 | 1941-08-26 | Westinghouse Electric & Mfg Co | Refrigerating apparatus |
GB705999A (en) * | 1951-11-02 | 1954-03-24 | Gen Electric | Improvements in and relating to compressors for refrigerators |
US2865610A (en) * | 1955-11-22 | 1958-12-23 | Honeywell Regulator Co | Control apparatus |
US3022642A (en) * | 1960-10-07 | 1962-02-27 | Vilter Manufacturing Corp | Refrigeration compressor control system |
US3495418A (en) * | 1968-04-18 | 1970-02-17 | Garrett Corp | Refrigeration system with compressor unloading means |
US3503223A (en) * | 1968-07-29 | 1970-03-31 | Lennox Ind Inc | Refrigeration system having tandem compressor arrangement |
-
1972
- 1972-07-17 US US00272704A patent/US3775995A/en not_active Expired - Lifetime
-
1973
- 1973-06-07 CA CA173,455A patent/CA990518A/en not_active Expired
- 1973-06-18 AU AU57038/73A patent/AU475453B2/en not_active Expired
- 1973-06-25 GB GB3007073A patent/GB1429050A/en not_active Expired
- 1973-07-16 IT IT41614/73A patent/IT997377B/it active
- 1973-07-16 BE BE1005236A patent/BE802373A/xx unknown
- 1973-07-16 ES ES416944A patent/ES416944A1/es not_active Expired
- 1973-07-17 FR FR7326201A patent/FR2193184B1/fr not_active Expired
- 1973-07-17 DE DE19732336369 patent/DE2336369A1/de active Pending
- 1973-07-17 JP JP8002773A patent/JPS5420020B2/ja not_active Expired
-
1976
- 1976-10-14 US US05/732,697 patent/USRE29621E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2193184A1 (de) | 1974-02-15 |
JPS4958444A (de) | 1974-06-06 |
BE802373A (fr) | 1974-01-16 |
USRE29621E (en) | 1978-05-02 |
GB1429050A (en) | 1976-03-24 |
AU475453B2 (en) | 1976-08-26 |
US3775995A (en) | 1973-12-04 |
AU5703873A (en) | 1974-12-19 |
ES416944A1 (es) | 1976-03-16 |
CA990518A (en) | 1976-06-08 |
JPS5420020B2 (de) | 1979-07-19 |
DE2336369A1 (de) | 1974-02-07 |
FR2193184B1 (de) | 1977-02-18 |
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