SE9401317D0 - Rotary screw compressor with thrust balancing means - Google Patents

Rotary screw compressor with thrust balancing means

Info

Publication number
SE9401317D0
SE9401317D0 SE9401317A SE9401317A SE9401317D0 SE 9401317 D0 SE9401317 D0 SE 9401317D0 SE 9401317 A SE9401317 A SE 9401317A SE 9401317 A SE9401317 A SE 9401317A SE 9401317 D0 SE9401317 D0 SE 9401317D0
Authority
SE
Sweden
Prior art keywords
pressure
valve
varying
regulating
oil
Prior art date
Application number
SE9401317A
Other languages
Swedish (sv)
Other versions
SE502631C2 (en
SE9401317L (en
Inventor
Leif Eriksson
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
Priority to SE9401317A priority Critical patent/SE502631C2/en
Publication of SE9401317D0 publication Critical patent/SE9401317D0/en
Publication of SE9401317L publication Critical patent/SE9401317L/en
Publication of SE502631C2 publication Critical patent/SE502631C2/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • 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)

Abstract

The screw rotor compressor has two screw rotors in engagement with one another and is provided with an axial balancing piston component on at least on of the rotors. For matching the balancing forces to varying inlet pressure (pa) and outlet pressure (pd) a slide valve (7) is arranged in the feed conduit for pressure medium. This valve regulates the pressure of the pressure medium, e.g. oil. The valve incorporates a variable throttling (16), which receives oil at the compressor outlet pressure and emits oil at the regulating pressure (pr). Through the pressure surfaces (17, 18) exposed o the compressor inlet nd regulating pressures and activating the valve slide (14) displacement the throttle area is varied dependent upon the varying work conditions, which results in a varying regulating pressure.
SE9401317A 1994-04-19 1994-04-19 Screw rotor compressor with axial balancing component SE502631C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9401317A SE502631C2 (en) 1994-04-19 1994-04-19 Screw rotor compressor with axial balancing component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401317A SE502631C2 (en) 1994-04-19 1994-04-19 Screw rotor compressor with axial balancing component

Publications (3)

Publication Number Publication Date
SE9401317D0 true SE9401317D0 (en) 1994-04-19
SE9401317L SE9401317L (en) 1995-10-20
SE502631C2 SE502631C2 (en) 1995-11-27

Family

ID=20393699

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401317A SE502631C2 (en) 1994-04-19 1994-04-19 Screw rotor compressor with axial balancing component

Country Status (1)

Country Link
SE (1) SE502631C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2442830A (en) * 2007-09-05 2008-04-16 Grasso Gmbh Refrigeration Tech Screw Compressor with Axial thrust Balancing Device
US8454334B2 (en) * 2011-02-10 2013-06-04 Trane International Inc. Lubricant control valve for a screw compressor

Also Published As

Publication number Publication date
SE502631C2 (en) 1995-11-27
SE9401317L (en) 1995-10-20

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