ZA724566B - Capacity control valve for screw compressor - Google Patents

Capacity control valve for screw compressor

Info

Publication number: ZA724566B
Authority: ZA; South Africa
Prior art keywords: control valve; screw compressor; capacity control; capacity; compressor
Prior art date: 1971-11-05

Application number

ZA724566A

Other languages

English (en)

Inventor

S Edstrom

Original Assignee

Gardner Denver Co

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.)

1971-11-05

Filing date

1972-07-03

Publication date

1974-02-27

1972-07-03 Application filed by Gardner Denver Co filed Critical Gardner Denver Co

1974-02-27 Publication of ZA724566B publication Critical patent/ZA724566B/xx

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Applications Or Details Of Rotary Compressors (AREA)
Rotary-Type Compressors (AREA)

ZA724566A 1971-11-05 1972-07-03 Capacity control valve for screw compressor ZA724566B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US19605671A	1971-11-05	1971-11-05

Publications (1)

Publication Number	Publication Date
ZA724566B true ZA724566B (en)	1974-02-27

Family

ID=22723965

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA724566A ZA724566B (en)	1971-11-05	1972-07-03	Capacity control valve for screw compressor

Country Status (7)

Country	Link
US (1)	US3738780A (fr)
JP (1)	JPS4854504A (fr)
AU (1)	AU462434B2 (fr)
BE (1)	BE788564A (fr)
CA (1)	CA946342A (fr)
GB (1)	GB1387891A (fr)
ZA (1)	ZA724566B (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE366375B (fr) *	1972-06-30	1974-04-22	Stal Refrigeration Ab
US3809510A (en) *	1973-03-22	1974-05-07	Philco Ford Corp	Combination pressure relief and anti-slugging valve for a screw compressor
GB1517156A (en) *	1974-06-21	1978-07-12	Svenska Rotor Maskiner Ab	Screw compressor including means for varying the capacity thereof
GB1518271A (en) *	1974-07-01	1978-07-19	Svenska Rotor Maskiner Ab	Method for the compression ratio of a screw compressor and prime mover
US3936239A (en) *	1974-07-26	1976-02-03	Dunham-Bush, Inc.	Undercompression and overcompression free helical screw rotary compressor
USRE29283E (en) *	1974-07-26	1977-06-28	Dunham-Bush, Inc.	Undercompression and overcompression free helical screw rotary compressor
US3924972A (en) *	1974-10-29	1975-12-09	Vilter Manufacturing Corp	Control means for a variable capacity rotary screw compressor
US4076461A (en) *	1974-12-09	1978-02-28	Dunham-Bush, Inc.	Feedback control system for helical screw rotary compressors
US4003199A (en) *	1976-03-01	1977-01-18	General Motors Corporation	Turbine engine with air brake
USRE31379E (en) *	1979-06-01	1983-09-13	Dunham-Bush, Inc.	Combined pressure matching and capacity control slide valve assembly for helical screw rotary machine
US4222716A (en) *	1979-06-01	1980-09-16	Dunham-Bush, Inc.	Combined pressure matching and capacity control slide valve assembly for helical screw rotary machine
US4281975A (en) *	1979-10-09	1981-08-04	Blackwell Thomas D	Anti-friction slide valve support for screw compressor
US4553911A (en) *	1983-11-22	1985-11-19	Frick Company	Method of coding the oil in screw compressors equipped with automatic variable volume ratio
US4515540A (en) *	1983-11-22	1985-05-07	Frick Company	Variable liquid refrigerant injection port locator for screw compressor equipped with automatic variable volume ratio
US4536130A (en) *	1984-06-18	1985-08-20	Dunham-Bush, Inc.	Simplified unloader indicator for helical screw rotary compressor
US20070251256A1 (en) *	2006-03-20	2007-11-01	Pham Hung M	Flash tank design and control for heat pumps
US8181478B2 (en) *	2006-10-02	2012-05-22	Emerson Climate Technologies, Inc.	Refrigeration system
US8769982B2 (en) *	2006-10-02	2014-07-08	Emerson Climate Technologies, Inc.	Injection system and method for refrigeration system compressor
US7647790B2 (en)	2006-10-02	2010-01-19	Emerson Climate Technologies, Inc.	Injection system and method for refrigeration system compressor
US8539785B2 (en)	2009-02-18	2013-09-24	Emerson Climate Technologies, Inc.	Condensing unit having fluid injection
US10012247B2 (en) *	2016-12-02	2018-07-03	Harris Corporation	Variable booster for hybrid pneumatic regenerative system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO117317B (fr) *	1964-03-20	1969-07-28	Svenska Rotor Maskiner Ab
GB1171291A (en) *	1965-10-12	1969-11-19	Svenska Rotor Maskiner Ab	Screw Rotor Machines

0
- BE BE788564D patent/BE788564A/fr unknown
1971
- 1971-11-05 US US00196056A patent/US3738780A/en not_active Expired - Lifetime
1972
- 1972-06-29 CA CA146,030A patent/CA946342A/en not_active Expired
- 1972-07-03 AU AU44163/72A patent/AU462434B2/en not_active Expired
- 1972-07-03 ZA ZA724566A patent/ZA724566B/xx unknown
- 1972-08-03 GB GB3625072A patent/GB1387891A/en not_active Expired
- 1972-10-25 JP JP47107018A patent/JPS4854504A/ja active Pending

Also Published As

Publication number	Publication date
AU462434B2 (en)	1975-06-26
CA946342A (en)	1974-04-30
BE788564A (fr)	1973-01-02
JPS4854504A (fr)	1973-07-31
US3738780A (en)	1973-06-12
GB1387891A (en)	1975-03-19
AU4416372A (en)	1974-01-10

Publication	Publication Date	Title
ZA724566B (en)	1974-02-27	Capacity control valve for screw compressor
CA954767A (en)	1974-09-17	Control valve
AU463933B2 (en)	1975-08-07	Control valves
AU3826872A (en)	1973-07-26	Compensating unloader valve
ZA721283B (en)	1973-10-31	Screw compressor
CA982443A (en)	1976-01-27	Cryogenic control valve
CA950797A (en)	1974-07-09	Control valve
CS186214B2 (en)	1978-11-30	Regulating valve
CA971858A (en)	1975-07-29	Control valve
CA953607A (en)	1974-08-27	Control valve
ZA715523B (en)	1972-04-26	Sectional control valves
CA949940A (en)	1974-06-25	Capacity control valve for screw compressor
AU461769B2 (en)	1975-06-05	Control system for compressors operating in parallel
CA952400A (en)	1974-08-06	Control valve
HU172365B (hu)	1978-08-28	Gidravlicheskij upravljajuhhij zolotnik
AU4316072A (en)	1972-06-07	Discharge valves
AU444484B2 (en)	1974-01-10	Screw compressor with capacity control
CA878272A (en)	1971-08-17	Compressor valve
CA889101A (en)	1971-12-28	Control valve arrangements
CA883073A (en)	1971-10-12	Control valve
CA867123A (en)	1971-03-30	Control valve
CA887990A (en)	1971-12-14	Control valve
CA888522A (en)	1971-12-21	Control valve
CA884124A (en)	1971-10-26	Control valve
CA884123A (en)	1971-10-26	Control valve