SE450406B - COATED ROTORS FOR ROTATING PISTON COMPRESSORS - Google Patents

COATED ROTORS FOR ROTATING PISTON COMPRESSORS

Info

Publication number
SE450406B
SE450406B SE8107192A SE8107192A SE450406B SE 450406 B SE450406 B SE 450406B SE 8107192 A SE8107192 A SE 8107192A SE 8107192 A SE8107192 A SE 8107192A SE 450406 B SE450406 B SE 450406B
Authority
SE
Sweden
Prior art keywords
rotors
coated
piston compressors
coating material
rotating piston
Prior art date
Application number
SE8107192A
Other languages
Swedish (sv)
Other versions
SE8107192L (en
Inventor
D Prockat
A Pietsch
H Friedrich
H Neumann
Original Assignee
Luft U Kaeltetechnik Veb K
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 Luft U Kaeltetechnik Veb K filed Critical Luft U Kaeltetechnik Veb K
Publication of SE8107192L publication Critical patent/SE8107192L/en
Publication of SE450406B publication Critical patent/SE450406B/en

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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • 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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels

Landscapes

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

Description

15 20 25 30 35 H0 450 406 2 uppvisar spalter, åstadkomma en optimal och säker spalttät- ning. 15 20 25 30 35 H0 450 406 2 have gaps, achieve an optimal and safe gap seal.

Enligt uppfinningen beläggs de för kraftöverföring avsedda rotorerna på rotationskolvkompressorer med hjälp av ett ~ lämpligt förfarande med ett metalliskt eller icke-metalliskt material. Därvid bör emellertid en ideal kontaktlinje pâ rotorflankerna inte förses med beläggning, dvs. beläggning bör anbringas på de kontaktfria ställena på rotorerna. Kon- taktlinjen erhålls på basis av profilgeometrin för rotor- flankerna och kommer vid första därpå följande moment att genom ett lämpligt, i och för sig känt förfarande, t.ex. om- formning eller polering, ges ideal form för att åstadkomma exakt linjekontakt mellan rotorflankerna vid kraftöverföringen.According to the invention, the rotors intended for power transmission are coated on rotary piston compressors by means of a suitable method with a metallic or non-metallic material. In this case, however, an ideal contact line on the rotor flanks should not be provided with a coating, ie. coating should be applied to the non-contact points on the rotors. The line of contact is obtained on the basis of the profile geometry of the rotor flanks and will at the first subsequent moment by a suitable, per se known method, e.g. reshaping or polishing, is given the ideal shape to achieve precise line contact between the rotor flanks during power transmission.

Kontaktlinjen är således inte utsatt för någon mekanisk för- slitning. I De sammanhörande, kraftöverförande rotorerna på skruvkompres- sorer beläggs med ett beläggningsmaterial genom ett belägg- ningsförfarande, exempelvis genom pástrykning, elektrolytisk beläggning, polering eller beläggning och efterföljande om- formning.The contact line is thus not exposed to any mechanical wear. I The associated, power-transmitting rotors on screw compressors are coated with a coating material by a coating process, for example by application, electrolytic coating, polishing or coating and subsequent reshaping.

Beläggningsmaterialet är valfritt metalliskt, t.ex. tenn, eller icke-metalliskt, t.ex. plast.The coating material is optionally metallic, e.g. tin, or non-metallic, e.g. plastic.

Beläggning sker på de ställen på rotorflankerna som inte an- vänds direkt för kraftöverföring. Själva den för kraftöver- föring erforderliga kontaktlinjen mellan rotorerna beläggs inte, utan bibringas vid ett första därpå följande arbets- moment med hjälp av ett känt förfarande en ideal form. Denna kontaktlinje, som ligger i omrâdet för ingreppslinjen mellan rotorflankerna, erhålls genom den aktuella profilgeometrin.Coating takes place in those places on the rotor flanks that are not used directly for power transmission. The actual line of contact required for power transmission between the rotors is not coated, but is given an ideal shape at a first subsequent operation by means of a known method. This line of contact, which lies in the area of the engagement line between the rotor flanks, is obtained by the current profile geometry.

Därigenom blir det möjligt att för rotationskolvkompressorer tillverka och använda rotorer med relativt stora tillverk- ningstoleranser, med bättre ekonomi såsom resultat. Genom att enligt uppfinningen efterbearbeta rotorerna uppnås med kompressorn en högre verkningsgrad. Eftersom tätning före- trädesvis sker med hjälp av beläggningsmaterialet kan vid oljesmorda kompressorer den insprutade oljemängden s 450 406 reduceras, eftersom oljan endast erfordras för smörjniog och kylning, något som till följd av reducerad vätskefriktion och mindre transportarbete bidrar till en verkningsgrads- ökning.This makes it possible for rotary piston compressors to manufacture and use rotors with relatively large manufacturing tolerances, with better economy as a result. By finishing the rotors according to the invention, a higher efficiency is achieved with the compressor. Since sealing is preferably done with the aid of the coating material, in oil-lubricated compressors the amount of oil injected 450,406 can be reduced, since the oil is only required for lubrication and cooling, which due to reduced liquid friction and less transport work contributes to an increase in efficiency.

Claims (3)

10 15 459 406 H10 15 459 406 H 1. Patentkrav _1. Belagda rotorer för rotationskolvkompressorer i klimat- och kylanläggníngar, k ä n n e t e c k n a d e av att rotorerna har för kraftöverföring avsedda, genom ett i och för sig känt förfarande âstadkomna kontaktlinjer, och att samtliga utanför dessa kontaktlinjer belägna spalter är tätade medelst ett beläggningsmaterial.Claims _1. Coated rotors for rotary piston compressors in air-conditioning and refrigeration systems, characterized in that the rotors have contact lines intended for power transmission, produced by a method known per se, and that all gaps located outside these contact lines are sealed by means of a coating material. 2. Belagda rotorer enligt krav 1, k ä n n e t e c k n a d e av att beläggningsmateríalet utgörs av ett icke-metalliskt material, företrädesvis plast.Coated rotors according to claim 1, characterized in that the coating material consists of a non-metallic material, preferably plastic. 3. Belagda rotorer enligt krav 1, k ä n n e t e c k n a d e av att beläggningsmaterialet utgörs av ett metallískt material, företrädesvis tenn. .Coated rotors according to claim 1, characterized in that the coating material consists of a metallic material, preferably tin. .
SE8107192A 1980-12-05 1981-12-02 COATED ROTORS FOR ROTATING PISTON COMPRESSORS SE450406B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD22576880A DD155102A1 (en) 1980-12-05 1980-12-05 COATED ROTORS FOR ROTATION PISTON COMPRESSORS

Publications (2)

Publication Number Publication Date
SE8107192L SE8107192L (en) 1982-06-06
SE450406B true SE450406B (en) 1987-06-22

Family

ID=5527656

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8107192A SE450406B (en) 1980-12-05 1981-12-02 COATED ROTORS FOR ROTATING PISTON COMPRESSORS

Country Status (3)

Country Link
DD (1) DD155102A1 (en)
DE (1) DE3142896A1 (en)
SE (1) SE450406B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0623753Y2 (en) * 1985-07-26 1994-06-22 トヨタ自動車株式会社 Roots pump
DE3769468D1 (en) * 1987-03-11 1991-05-23 Leybold Ag TWO-SHAFT MACHINE.
DE3740696A1 (en) * 1987-12-01 1989-06-15 Erich Fuergut Vane pump for gases, vapours or similar pressure media
DE19844904C1 (en) * 1998-09-30 2000-02-17 Luk Automobiltech Gmbh & Co Kg Vacuum pump for brake amplifier
DE10059275A1 (en) 1999-12-23 2001-06-28 Luk Automobiltech Gmbh & Co Kg Vacuum pump especially for motor vehicle's servo brake system has rotor or vane consisting of aluminum or aluminum alloy, constructed in one piece, and with rotor manufactured through non-cutting forming

Also Published As

Publication number Publication date
SE8107192L (en) 1982-06-06
DE3142896A1 (en) 1982-08-26
DD155102A1 (en) 1982-05-12

Similar Documents

Publication Publication Date Title
ES282724U (en) Helical screw rotor profiles
SE450406B (en) COATED ROTORS FOR ROTATING PISTON COMPRESSORS
US2905376A (en) Light metal vane for rotary compressor
WO2018193095A1 (en) Rotor for an electric motor with heat-shielding coating, and production method
JP2015158143A (en) Rotor and rotary type fluid machine
CN110848137A (en) Zero-clearance screw rotor and preparation method thereof
GB1446851A (en) Rotary machines
CN206958262U (en) A kind of ripple spring mechanical seal
JPS6131685A (en) Compressor
EP0920590A1 (en) Dry vacuum machine with shaft passage
SE9301662D0 (en) ROTARY SCREW COMPRESSOR WITH SEAL MEANS
CN209414140U (en) A kind of engine rotor engine oil pump structure
GB1443928A (en) Liners for rotary piston machines
CN105156324B (en) A kind of novel plastic vacuum pump vanes and vacuum pump
CN105179230A (en) External meshed gear pump
CN219639064U (en) Moving plate of vortex compressor
RU2065085C1 (en) Method of manufacture of screw compressor
WO2018193096A1 (en) Rotor for an electric motor with specially shaped return element, and production method
CN85103401A (en) The improvement of lubrication for rotary compressor vane
CN217927021U (en) Cam with additional strengthening
CN108895296A (en) A kind of rotary components being able to achieve lubricating grease self-loopa
KR100578166B1 (en) Method for designning the gerotor pump having the optimum trochoid shape
CN210889730U (en) Novel vacuum pump bearing
SU1079893A1 (en) Rotary vacuum pump running-in method
SU573837A1 (en) Electrical machine with evaporative cooling