SE0002129D0 - vacuum pump - Google Patents

vacuum pump

Info

Publication number
SE0002129D0
SE0002129D0 SE0002129A SE0002129A SE0002129D0 SE 0002129 D0 SE0002129 D0 SE 0002129D0 SE 0002129 A SE0002129 A SE 0002129A SE 0002129 A SE0002129 A SE 0002129A SE 0002129 D0 SE0002129 D0 SE 0002129D0
Authority
SE
Sweden
Prior art keywords
rotor bodies
pump
gas
bodies
compressor part
Prior art date
Application number
SE0002129A
Other languages
Swedish (sv)
Other versions
SE517211C2 (en
SE0002129L (en
Inventor
Karlis Timuska
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 SE0002129A priority Critical patent/SE517211C2/en
Publication of SE0002129D0 publication Critical patent/SE0002129D0/en
Publication of SE0002129L publication Critical patent/SE0002129L/en
Publication of SE517211C2 publication Critical patent/SE517211C2/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
    • 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
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/047—Cooling of electronic devices installed inside the pump housing, e.g. inverters

Landscapes

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

Abstract

The rotor body shafts (8, 9) contain central cooling channels which are open only at the compressor part end. The pump (1) has a compressor part (2) with cooperating male and female rotor bodies (10, 11), an inlet port (28) for the gas being compressed, and an outlet port (29) for the compressed gas. An expansion part (3) of the pump has cooperating male and female rotor bodies (12, 13), an inlet port (34) for a compressed gas and an outlet port (35) for the expanded gas. The pump has two shafts for the rotor bodies, which are enclosed in a casing (4-6) formed by two intersecting cylinders. A partition wall (7) is provided between the rotor bodies in the compressor part and the rotor bodies in the expansion part.
SE0002129A 2000-06-07 2000-06-07 Screw rotor type vacuum pump, has rotor bodies mounted on shafts with central cooling channels open at compressor part end only SE517211C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0002129A SE517211C2 (en) 2000-06-07 2000-06-07 Screw rotor type vacuum pump, has rotor bodies mounted on shafts with central cooling channels open at compressor part end only

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0002129A SE517211C2 (en) 2000-06-07 2000-06-07 Screw rotor type vacuum pump, has rotor bodies mounted on shafts with central cooling channels open at compressor part end only

Publications (3)

Publication Number Publication Date
SE0002129D0 true SE0002129D0 (en) 2000-06-07
SE0002129L SE0002129L (en) 2001-12-08
SE517211C2 SE517211C2 (en) 2002-05-07

Family

ID=20280004

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0002129A SE517211C2 (en) 2000-06-07 2000-06-07 Screw rotor type vacuum pump, has rotor bodies mounted on shafts with central cooling channels open at compressor part end only

Country Status (1)

Country Link
SE (1) SE517211C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0201335L (en) * 2002-05-03 2003-03-25 Piab Ab Vacuum pump and ways to provide vacuum
DE102005012040A1 (en) * 2005-03-16 2006-09-21 Gebr. Becker Gmbh & Co Kg Rotor and screw vacuum pump
BE1017371A3 (en) * 2006-11-23 2008-07-01 Atlas Copco Airpower Nv ROTOR AND COMPRESSOR ELEMENT FITTED WITH SUCH ROTOR.

Also Published As

Publication number Publication date
SE517211C2 (en) 2002-05-07
SE0002129L (en) 2001-12-08

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Legal Events

Date Code Title Description
NUG Patent has lapsed