CA954098A - Two stage screw rotor machines - Google Patents

Two stage screw rotor machines

Info

Publication number
CA954098A
CA954098A CA118,349A CA118349A CA954098A CA 954098 A CA954098 A CA 954098A CA 118349 A CA118349 A CA 118349A CA 954098 A CA954098 A CA 954098A
Authority
CA
Canada
Prior art keywords
screw rotor
stage screw
rotor machines
machines
stage
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
CA118,349A
Other versions
CA118349S (en
Inventor
Walther Persson
Lauritz B. Schibbye
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
Application granted granted Critical
Publication of CA954098A publication Critical patent/CA954098A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/10—Control of, monitoring of, or safety arrangements for, machines or engines characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F01C20/12—Control of, monitoring of, or safety arrangements for, machines or engines characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • F01C20/125—Control of, monitoring of, or safety arrangements for, machines or engines 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
CA118,349A 1970-07-16 1971-07-15 Two stage screw rotor machines Expired CA954098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3452570A GB1365285A (en) 1970-07-16 1970-07-16 Meshing screw rotor positivedisplacement machines

Publications (1)

Publication Number Publication Date
CA954098A true CA954098A (en) 1974-09-03

Family

ID=10366730

Family Applications (1)

Application Number Title Priority Date Filing Date
CA118,349A Expired CA954098A (en) 1970-07-16 1971-07-15 Two stage screw rotor machines

Country Status (6)

Country Link
US (1) US3756753A (en)
JP (1) JPS5428603B1 (en)
BE (1) BE769872A (en)
CA (1) CA954098A (en)
DE (1) DE2134994C3 (en)
GB (1) GB1365285A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE366375B (en) * 1972-06-30 1974-04-22 Stal Refrigeration Ab
US3869227A (en) * 1974-03-08 1975-03-04 Vilter Manufacturing Corp Variable capacity rotary screw compressor having variable high pressure suction fluid inlets
USRE29283E (en) * 1974-07-26 1977-06-28 Dunham-Bush, Inc. Undercompression and overcompression free helical screw rotary compressor
US3936239A (en) * 1974-07-26 1976-02-03 Dunham-Bush, Inc. Undercompression and overcompression free helical screw rotary compressor
US4005949A (en) * 1974-10-10 1977-02-01 Vilter Manufacturing Corporation Variable capacity rotary screw compressor
GB1555330A (en) * 1978-03-21 1979-11-07 Hall Thermotank Prod Ltd Rotary fluid machines
US4610612A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Rotary screw gas compressor having dual slide valves
US4610613A (en) * 1985-06-03 1986-09-09 Vilter Manufacturing Corporation Control means for gas compressor having dual slide valves
US6283716B1 (en) 1997-10-28 2001-09-04 Coltec Industries Inc. Multistage blowdown valve for a compressor system
US6422846B1 (en) * 2001-03-30 2002-07-23 Carrier Corporation Low pressure unloader mechanism
US6638029B2 (en) 2001-12-19 2003-10-28 Hamilton Sunstrand Corporation Pressure ratio modulation for a two stage oil free compressor assembly
DE10242139A1 (en) * 2002-09-03 2004-03-18 Bitzer Kühlmaschinenbau Gmbh screw compressors
WO2008069773A1 (en) * 2006-10-16 2008-06-12 Carrier Corporation Compressor slide valve support
US7891955B2 (en) * 2007-02-22 2011-02-22 Vilter Manufacturing Llc Compressor having a dual slide valve assembly
BRPI0808620A2 (en) * 2007-03-29 2014-08-12 Vilter Mfg Llc "HIGH PRESSURE DRAW COMPRESSOR, VALVE ASSEMBLY FOR USE ON A COMPRESSOR, VOLUME INPUT AND CAPACITY RATE CONTROL METHOD ON A HIGH PRESSURE ENVIRONMENT"
WO2009048446A1 (en) * 2007-10-10 2009-04-16 Carrier Corporation Slide valve system for a screw compressor
EP2439411B1 (en) * 2010-10-06 2017-08-23 LEONARDO S.p.A. Pump assembly, in particular for helicopter lubrication
US9920763B2 (en) 2015-09-17 2018-03-20 Ingersoll-Rand Company Contact cooled rotary airend injection spray insert

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR804327A (en) * 1935-03-28 1936-10-21 Milo Ab Rotary compressor with helical toothing, for variable power
US2645903A (en) * 1947-02-20 1953-07-21 Douglas A Elkins Variable ratio rotary pump and motor hydraulic transmission
US2749571A (en) * 1951-06-23 1956-06-12 Pasquetti Carlo Machine for mixing and extruding
GB819485A (en) * 1956-04-12 1959-09-02 Svenska Rotor Maskiner Ab Improvements in gear devices acting as pumps or motors
US3088659A (en) * 1960-06-17 1963-05-07 Svenska Rotor Maskiner Ab Means for regulating helical rotary piston engines
NO117317B (en) * 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

Also Published As

Publication number Publication date
DE2134994C3 (en) 1979-12-20
DE2134994A1 (en) 1972-01-20
JPS5428603B1 (en) 1979-09-18
US3756753A (en) 1973-09-04
GB1365285A (en) 1974-08-29
BE769872A (en) 1971-11-16
DE2134994B2 (en) 1979-04-26

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