SE7501980L - - Google Patents

Info

Publication number
SE7501980L
SE7501980L SE7501980A SE7501980A SE7501980L SE 7501980 L SE7501980 L SE 7501980L SE 7501980 A SE7501980 A SE 7501980A SE 7501980 A SE7501980 A SE 7501980A SE 7501980 L SE7501980 L SE 7501980L
Authority
SE
Sweden
Prior art keywords
valve
chamber
ducts
feb
connect
Prior art date
Application number
SE7501980A
Other languages
Unknown language ( )
Other versions
SE398912B (en
Inventor
D Mosemann
P Kolberg
Original Assignee
Kuehlautomat Veb
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 Kuehlautomat Veb filed Critical Kuehlautomat Veb
Publication of SE7501980L publication Critical patent/SE7501980L/
Publication of SE398912B publication Critical patent/SE398912B/en

Links

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
    • 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
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1461039 Rotary positive-displacement fluidmachines KUHLAUTOMAT VEB 21 Feb 1975 [22 Feb 1974] 7439/75 Heading E1F In a meshing-screw compressor, Figs. 1, 3 and 4, having male and female rotors 7, 8 and a "slide valve" 11 to regulate the delivery rate, ducts 19, 20 in the valve and a "bracket" 18 connect a delivery chamber 5 to a contracting chamber between the rotor lands and lobes, so as to equalize the pressures and thus reduce noise, when the valve is at or near to its minimum delivery position. The positions of the ducts 19, 20 may be in effect reversed, Figs. 2 and 5 (not shown). Alternatively, the ducts 19, 20 are arranged to connect the chamber 5 to a suction chamber 4 when the valve is at or near to its minimum delivery position, Fig. 6 (not shown).
SE7501980A 1974-02-22 1975-02-21 POWER-CONTROLLED SCREW COMPRESSOR SE398912B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD17674874A DD110920A1 (en) 1974-02-22 1974-02-22

Publications (2)

Publication Number Publication Date
SE7501980L true SE7501980L (en) 1975-08-25
SE398912B SE398912B (en) 1978-01-23

Family

ID=5494713

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7501980A SE398912B (en) 1974-02-22 1975-02-21 POWER-CONTROLLED SCREW COMPRESSOR

Country Status (9)

Country Link
CS (1) CS180815B1 (en)
DD (1) DD110920A1 (en)
DE (1) DE2501451C2 (en)
DK (1) DK139689B (en)
FR (1) FR2262210B3 (en)
GB (1) GB1461039A (en)
NL (1) NL184580C (en)
SE (1) SE398912B (en)
SU (1) SU962673A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54163416A (en) * 1978-06-14 1979-12-26 Hitachi Ltd Screw compressor
DE3414039A1 (en) * 1984-04-13 1985-10-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen ROOTS COMPRESSOR FOR COMPRESSING GAS SHAPED CONVEYOR MEDIUM
DE10326466B4 (en) * 2003-06-12 2016-03-17 Gea Refrigeration Germany Gmbh Slide with start unloading
EP2089609A4 (en) * 2006-12-05 2013-01-09 Carrier Corp Integral slide valve relief valve
RU2538188C1 (en) * 2013-08-20 2015-01-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Омский государственный технический университет" Multipurpose spur displacement machine
CN106151041B (en) * 2016-08-22 2018-07-10 珠海格力电器股份有限公司 Guiding valve and helical-lobe compressor and Screw chiller equipped with the guiding valve
TWI666387B (en) * 2017-10-17 2019-07-21 復盛股份有限公司 compressor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO117317B (en) * 1964-03-20 1969-07-28 Svenska Rotor Maskiner Ab
US3367562A (en) * 1966-06-23 1968-02-06 Atlas Copco Ab Means for unloading and controlling compressor units

Also Published As

Publication number Publication date
DE2501451A1 (en) 1975-08-28
CS180815B1 (en) 1978-02-28
NL184580C (en) 1989-09-01
DK67575A (en) 1975-11-03
DD110920A1 (en) 1975-01-12
NL7501233A (en) 1975-08-26
NL184580B (en) 1989-04-03
SE398912B (en) 1978-01-23
DK139689C (en) 1979-09-10
FR2262210A1 (en) 1975-09-19
DK139689B (en) 1979-03-26
SU962673A1 (en) 1982-09-30
DE2501451C2 (en) 1985-10-31
FR2262210B3 (en) 1977-10-28
GB1461039A (en) 1977-01-13

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