ES416944A1 - Variable capacity multiple compressor refrigeration system - Google Patents
Variable capacity multiple compressor refrigeration systemInfo
- Publication number
- ES416944A1 ES416944A1 ES416944A ES416944A ES416944A1 ES 416944 A1 ES416944 A1 ES 416944A1 ES 416944 A ES416944 A ES 416944A ES 416944 A ES416944 A ES 416944A ES 416944 A1 ES416944 A1 ES 416944A1
- Authority
- ES
- Spain
- Prior art keywords
- compressor
- discharge
- compressors
- variable capacity
- refrigeration system
- 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.)
- Expired
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)
Abstract
A variable capacity multiple compressor refrigeration system having first and second compressors with the first compressor to be always running when the system is operating and the second compressor to be cycled off or to vary the capacity of the system on while the first compressor continues to run. The discharge lines of both compressors are connected together in parallel to the system and a check valve is provided in the discharge line connection between the compressors to prevent discharge pressure from the operating compressor from entering the discharge port of the non-running compressor. A by-pass line connects the suction of the system at the inlet of the second compressor to its discharge line between the check valve and its discharge port and a solenoid valve in the by-pass line is arranged to be closed when the second compressor is running and open when it is cycled off.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27270472A | 1972-07-17 | 1972-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES416944A1 true ES416944A1 (en) | 1976-03-16 |
Family
ID=23040923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES416944A Expired ES416944A1 (en) | 1972-07-17 | 1973-07-16 | Variable capacity multiple compressor refrigeration system |
Country Status (10)
Country | Link |
---|---|
US (2) | US3775995A (en) |
JP (1) | JPS5420020B2 (en) |
AU (1) | AU475453B2 (en) |
BE (1) | BE802373A (en) |
CA (1) | CA990518A (en) |
DE (1) | DE2336369A1 (en) |
ES (1) | ES416944A1 (en) |
FR (1) | FR2193184B1 (en) |
GB (1) | GB1429050A (en) |
IT (1) | IT997377B (en) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5032550A (en) * | 1973-07-25 | 1975-03-29 | ||
US3885938A (en) * | 1974-01-18 | 1975-05-27 | Westinghouse Electric Corp | Refrigeration system with capacity control |
AT335671B (en) * | 1974-12-20 | 1977-03-25 | Interliz Anstalt | CONTROL DEVICE FOR A HEAT PUMP |
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 (en) * | 1987-06-30 | 1989-09-29 | Henriot Jean Luc | REFRIGERATION SYSTEM FOR AN APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS |
JPH01193089A (en) * | 1988-01-29 | 1989-08-03 | Toshiba Corp | Rotary compressor |
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 (en) * | 2000-09-20 | 2010-08-11 | 株式会社日立プラントテクノロジー | Screw compressor |
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 (en) * | 2004-05-17 | 2012-03-06 | 삼성전자주식회사 | Control apparatus and method for compressor |
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 (en) | 2009-01-27 | 2017-07-10 | Emerson Climate Technologies, Inc. | System and discharge method for a compressor |
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 |
CN110462310B (en) | 2017-04-06 | 2021-11-19 | 开利公司 | Method for reducing the maximum inrush current of a compressor system comprising a plurality of asynchronous electric motors and compressor system for implementing the method |
CN113669965A (en) | 2020-04-30 | 2021-11-19 | 特灵空调***(中国)有限公司 | System and method for OCR control in parallel compressors |
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/en active
- 1973-07-16 BE BE1005236A patent/BE802373A/en unknown
- 1973-07-16 ES ES416944A patent/ES416944A1/en not_active Expired
- 1973-07-17 JP JP8002773A patent/JPS5420020B2/ja not_active Expired
- 1973-07-17 FR FR7326201A patent/FR2193184B1/fr not_active Expired
- 1973-07-17 DE DE19732336369 patent/DE2336369A1/en active Pending
-
1976
- 1976-10-14 US US05/732,697 patent/USRE29621E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB1429050A (en) | 1976-03-24 |
BE802373A (en) | 1974-01-16 |
FR2193184A1 (en) | 1974-02-15 |
AU475453B2 (en) | 1976-08-26 |
JPS5420020B2 (en) | 1979-07-19 |
JPS4958444A (en) | 1974-06-06 |
AU5703873A (en) | 1974-12-19 |
IT997377B (en) | 1975-12-30 |
DE2336369A1 (en) | 1974-02-07 |
CA990518A (en) | 1976-06-08 |
US3775995A (en) | 1973-12-04 |
FR2193184B1 (en) | 1977-02-18 |
USRE29621E (en) | 1978-05-02 |
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