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GB959831A - Improvements in or relating to screw rotor machines - Google Patents

Improvements in or relating to screw rotor machines

Info

Publication number
GB959831A
GB959831A GB1900860A GB1900860A GB959831A GB 959831 A GB959831 A GB 959831A GB 1900860 A GB1900860 A GB 1900860A GB 1900860 A GB1900860 A GB 1900860A GB 959831 A GB959831 A GB 959831A
Authority
GB
United Kingdom
Prior art keywords
slide
vary
pressure ratio
duct
mass flow
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
Application number
GB1900860A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Rotor Maskiner AB
Original Assignee
Svenska Rotor Maskiner AB
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 Svenska Rotor Maskiner AB filed Critical Svenska Rotor Maskiner AB
Publication of GB959831A publication Critical patent/GB959831A/en
Expired legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F01C1/16—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids

Landscapes

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

Abstract

959,831. Rotary compressors or motors. SVENSKA ROTOR MASKINER A.B. May 30, 1960 [June 4, 1959], No. 19008/60. Heading F1F. A meshing screw pump or motor incorporates at least one slide 46, which seals against at least one rotor 12 and is movable to vary the mass flow and/or the pressure ratio of the machine. The slide is mounted on a guide 48, but in a modification is mounted in the casing Fig. 3 (not shown). The slide may co-operate with the inlet or outlet port, or one slide may be used for each, or may comprise two separate slides on the same axis, Fig. 8 (not shown). The rotors may have double-helical lands. In Fig. 6, a slide 64 controls communication with the high pressure duct 36, to vary the pressure ratio of the machine, and slides 66, 68 are adjustable to vary the cut-off of the working chambers from a duct 34A leading to the low-pressure duct, thus varying the mass flow as well as the pressure ratio. Specification 989,833 is referred to.
GB1900860A 1959-06-04 1960-05-30 Improvements in or relating to screw rotor machines Expired GB959831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE535559 1959-06-04

Publications (1)

Publication Number Publication Date
GB959831A true GB959831A (en) 1964-06-03

Family

ID=20266286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1900860A Expired GB959831A (en) 1959-06-04 1960-05-30 Improvements in or relating to screw rotor machines

Country Status (4)

Country Link
BE (1) BE591521A (en)
CH (1) CH386607A (en)
DE (1) DE1293384B (en)
GB (1) GB959831A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331830A1 (en) * 1972-06-30 1974-01-17 Stal Refrigeration Ab SCREW COMPRESSOR
GB2119446A (en) * 1982-04-30 1983-11-16 Sullair Tech Ab Rotary positive-displacement gas-compressor
GB2122687A (en) * 1982-06-09 1984-01-18 Aerzener Maschf Gmbh Meshing-screw gas- compressor
US4455131A (en) * 1981-11-02 1984-06-19 Svenska Rotor Maskiner Aktiebolag Control device in a helical screw rotor machine for regulating the capacity and the built-in volume ratio of the machine
GB2176243A (en) * 1985-06-03 1986-12-17 Vilter Manufacturing Corp Rotary screw gas compressor
GB2186029A (en) * 1986-01-31 1987-08-05 Stal Refrigeration Ab Controlling a rotary compressor
CN106122016A (en) * 2015-05-09 2016-11-16 曼柴油机和涡轮机欧洲股份公司 Thread chasing machine
US12055042B2 (en) 2020-06-10 2024-08-06 Bitzer Kuehlmaschinenbau Gmbh Screw expander with variable volume controlled by the pressure ratio, and plant for recovering electrical energy from heat with a screw expander

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948992A1 (en) * 1979-12-05 1981-06-11 Karl Prof.Dr.-Ing. 3000 Hannover Bammert ROTOR COMPRESSORS, ESPECIALLY SCREW ROTOR COMPRESSORS, WITH LUBRICANT SUPPLY TO AND LUBRICANT DRAINAGE FROM THE BEARINGS
SE430709B (en) * 1982-04-30 1983-12-05 Sullair Tech Ab SCREW COMPRESSOR WITH DEVICE FOR CONTROL OF INTERNAL COMPRESSION SCREW COMPRESSOR WITH DEVICE FOR REGULATION OF INTERNAL COMPRESSION
FR2562167B1 (en) * 1984-03-29 1986-08-14 Bernard Zimmern VOLUMETRIC SCREW MACHINE WITH RAIL SLIDE
US4610613A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Control means for gas compressor having dual slide valves
DE3706582A1 (en) * 1986-10-07 1988-09-08 Mannesmann Ag Controllable rotary-screw compressor for industrial compressed gas
DE3803044A1 (en) * 1988-02-02 1989-08-10 Gutehoffnungshuette Man SLIDER-CONTROLLED SCREW-ROTOR MACHINE AND CHARGED COMBUSTION ENGINE
DE4221494C2 (en) * 1992-06-29 2003-03-13 Grasso Gmbh Refrigeration Tech Flow change on a screw compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH188949A (en) * 1935-03-28 1937-01-31 Milo Ab Variable capacity screw compressors with intermeshing screw gears.
GB596122A (en) * 1945-07-19 1947-12-29 Robert Munro Improved axial flow pumps and extrusion apparatus
GB677631A (en) * 1947-02-05 1952-08-20 Sig Schweiz Industrieges Improvements in reciprocating pumps for delivering variable amounts of liquid
GB696732A (en) * 1950-09-21 1953-09-09 Bernhard Kapp Improvements in screw pumps

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331830A1 (en) * 1972-06-30 1974-01-17 Stal Refrigeration Ab SCREW COMPRESSOR
US4455131A (en) * 1981-11-02 1984-06-19 Svenska Rotor Maskiner Aktiebolag Control device in a helical screw rotor machine for regulating the capacity and the built-in volume ratio of the machine
GB2119446A (en) * 1982-04-30 1983-11-16 Sullair Tech Ab Rotary positive-displacement gas-compressor
US4611976A (en) * 1982-04-30 1986-09-16 Sullair Technology Ab Capacity and internal compression control device in a screw compressor
GB2122687A (en) * 1982-06-09 1984-01-18 Aerzener Maschf Gmbh Meshing-screw gas- compressor
GB2176243A (en) * 1985-06-03 1986-12-17 Vilter Manufacturing Corp Rotary screw gas compressor
GB2186029A (en) * 1986-01-31 1987-08-05 Stal Refrigeration Ab Controlling a rotary compressor
DE3702435A1 (en) * 1986-01-31 1987-08-20 Stal Refrigeration Ab METHOD FOR CONTROLLING THE ROTATIONAL COMPRESSOR IN A REFRIGERATION AND HEAT PUMP SYSTEM
GB2186029B (en) * 1986-01-31 1989-11-01 Stal Refrigeration Ab A method of controlling a rotary compressor
CN106122016A (en) * 2015-05-09 2016-11-16 曼柴油机和涡轮机欧洲股份公司 Thread chasing machine
GB2538390A (en) * 2015-05-09 2016-11-16 Man Diesel & Turbo Se Screw machine
GB2538390B (en) * 2015-05-09 2018-05-30 Man Diesel & Turbo Se Screw compressor with control slide guide
US10393118B2 (en) 2015-05-09 2019-08-27 Man Energy Solutions Se Screw machine
US12055042B2 (en) 2020-06-10 2024-08-06 Bitzer Kuehlmaschinenbau Gmbh Screw expander with variable volume controlled by the pressure ratio, and plant for recovering electrical energy from heat with a screw expander

Also Published As

Publication number Publication date
BE591521A (en) 1960-10-03
CH386607A (en) 1965-01-15
DE1293384B (en) 1969-04-24

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