WO1997021925A1 - Zwillingsschraubensatz - Google Patents
Zwillingsschraubensatz Download PDFInfo
- Publication number
- WO1997021925A1 WO1997021925A1 PCT/CH1996/000250 CH9600250W WO9721925A1 WO 1997021925 A1 WO1997021925 A1 WO 1997021925A1 CH 9600250 W CH9600250 W CH 9600250W WO 9721925 A1 WO9721925 A1 WO 9721925A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- balancing
- hollows
- worm
- worms
- Prior art date
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps 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
- F04C2/16—Rotary-piston machines or pumps 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
Definitions
- the invention relates to measures for balancing a set of twin screws in an axially parallel arrangement with opposing external-axis engagement and with wrap angles of at least 720 ° in a single-row design. Center of gravity, end face and wrap angle determine the sizes of the static and dynamic imbalance that occur with screws with catchy profiles.
- the invention has for its object to define measures for the balancing of single-start screws, the geometry of which is unusual or the use of which requires special materials, without great additional expenditure in production and without endangering the dimensional stability.
- twin screw set 1, 2 (FIG. 1) in an axially parallel arrangement with opposing external axis engagement and wrap angles of at least 720 ° solved by the fact that the screw lengths are not fixed to integer multiples of the pitch and that the outer screw contours in the medium entry area for balancing 3 (Fig.l) are changed.
- Design options are provided by attaching additional masses 6 (FIG. 1) in the outer area, in particular on the pilot transmission, and by balancing cavities 4 (FIG. 2) on the end face, the axial extent of which is varied for optimization.
- Fig.l A twin screw set for a screw pump in single-thread design according to the invention with wrap angles of 1598 ° and balancing recesses on the outer screw contours in the medium entry area.
- Fig. 2 An embodiment of a twin screw set from Fig.l with balancing cavity in front view.
- Fig.3 The representation of the spiral profile center of gravity locus of a screw profile of Fig.2.
- the twin screws 1, 2 (FIG. 1) have lengths of 4.439 times the pitch, which corresponds to a wrap angle of 1598 ° (FIG. 3).
- the end profile 5 (FIG. 2) and the slope 1 (FIG. 1) together with the wall thickness d (FIG. 2) determine the largest part of the contour of the axially attached balancing cavities 4 (FIG. 2); the core circle 7 (FIG. 2) delimits this towards the center. If the center of gravity of the full profile and the balancing surface So, S 3 (FIG. 2) have common angular positions, the straight termination in the balancing surface inevitably results.
- the center of gravity So (Fig. 3) is positioned on the u-axis in a right-angled coordinate system with screw axis as w-axis and u-axis and v-axis in the plane of the central screw face section.
- Equation (V) returns for any
- Screw wrap angle 20.2 (with 02> 2 ⁇ ) at least one solution for ⁇ x ⁇ ;
- the dimensions of the balancing cavity follow from ⁇ i and ⁇ 2: from (III) the wrap angle and from (VI) the nominal cross-section g 3 .
- the wrap angle 0 3 of the balancing cavity should be as small as possible; the largest value with ⁇ i ⁇ 0: 2 is used for several solutions for ⁇ i.
- outer balancing masses 6 (FIG. 1) are used in the area of the pilot transmission.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Clamps And Clips (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Fodder In General (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Golf Clubs (AREA)
- Gear Transmission (AREA)
- Formation And Processing Of Food Products (AREA)
- Body Structure For Vehicles (AREA)
- Catalysts (AREA)
- Hybrid Cells (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Retarders (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU61861/96A AU719268C (en) | 1995-12-11 | 1996-07-08 | Double worm system |
EP96920676A EP0865575B9 (de) | 1995-12-11 | 1996-07-08 | Zwillingsschraubensatz |
SK780-98A SK78098A3 (en) | 1995-12-11 | 1996-07-08 | Double worm system |
JP52157697A JP3330955B2 (ja) | 1995-12-11 | 1996-07-08 | ダブルウォームシステム |
DK96920676T DK0865575T4 (da) | 1995-12-11 | 1996-07-08 | Dobbeltsnekke |
AT96920676T ATE229127T1 (de) | 1995-12-11 | 1996-07-08 | Zwillingsschraubensatz |
DE59609957T DE59609957D1 (de) | 1995-12-11 | 1996-07-08 | Zwillingsschraubensatz |
US09/077,963 US6139297A (en) | 1995-12-11 | 1996-07-08 | Double worm system |
CA002240168A CA2240168C (en) | 1995-12-11 | 1996-07-08 | Double worm system |
NO982674A NO982674L (no) | 1995-12-11 | 1998-06-10 | Tvillingskrue |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3487/95 | 1995-12-11 | ||
CH348795 | 1995-12-11 | ||
CH362795 | 1995-12-21 | ||
CH3627/95 | 1995-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997021925A1 true WO1997021925A1 (de) | 1997-06-19 |
Family
ID=25693140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1996/000250 WO1997021925A1 (de) | 1995-12-11 | 1996-07-08 | Zwillingsschraubensatz |
Country Status (15)
Country | Link |
---|---|
US (1) | US6139297A (de) |
EP (1) | EP0865575B9 (de) |
JP (1) | JP3330955B2 (de) |
KR (1) | KR100384925B1 (de) |
CN (1) | CN1083536C (de) |
AT (1) | ATE229127T1 (de) |
CA (1) | CA2240168C (de) |
CZ (1) | CZ289289B6 (de) |
DE (1) | DE59609957D1 (de) |
DK (1) | DK0865575T4 (de) |
ES (1) | ES2186785T3 (de) |
NO (1) | NO982674L (de) |
PT (1) | PT865575E (de) |
SK (1) | SK78098A3 (de) |
WO (1) | WO1997021925A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1026399A1 (de) | 1999-02-08 | 2000-08-09 | Ateliers Busch S.A. | Zwillings-Förderschrauben |
EP1134357A2 (de) * | 2000-03-15 | 2001-09-19 | Teijin Seiki Co., Ltd. | Schraubenrotoren und Schraubenmaschine |
WO2002008609A1 (de) * | 2000-07-25 | 2002-01-31 | Ateliers Busch Sa | Zwillingsschraubenrotoren und solche enthaltende verdrängermaschinen |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10111525A1 (de) * | 2001-03-09 | 2002-09-12 | Leybold Vakuum Gmbh | Schraubenvakuumpumpe mit Rotoreinlauf und Rotorauslauf |
GB0226529D0 (en) * | 2002-11-14 | 2002-12-18 | Dana Automotive Ltd | Pump |
CN100400875C (zh) * | 2005-01-31 | 2008-07-09 | 浙江大学 | 一种大流量双螺杆泵的摆线螺杆齿形 |
CN100460681C (zh) * | 2005-01-31 | 2009-02-11 | 浙江大学 | 一种大流量双螺杆泵的渐开线螺杆齿形 |
CN100392249C (zh) * | 2005-01-31 | 2008-06-04 | 浙江大学 | 一种大流量双螺杆泵的圆弧螺杆齿形 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714314A (en) * | 1951-05-15 | 1955-08-02 | Howden James & Co Ltd | Rotors for rotary gas compressors and motors |
JPS62291486A (ja) * | 1986-06-12 | 1987-12-18 | Taiko Kikai Kogyo Kk | スクリユ−コンプレツサ− |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1500160A (fr) * | 1966-07-29 | 1967-11-03 | Perfectionnements aux compresseurs et moteurs rotatifs | |
US3918838A (en) * | 1974-01-04 | 1975-11-11 | Dunham Bush Inc | Metal reinforced plastic helical screw compressor rotor |
FR2530742B1 (fr) * | 1982-07-22 | 1987-06-26 | Dba | Compresseur volumetrique a vis |
NL8803199A (nl) * | 1988-12-29 | 1990-07-16 | Skf Ind Trading & Dev | Schroefcompressor. |
DE69132867T2 (de) * | 1990-08-01 | 2002-09-12 | Matsushita Electric Industrial Co., Ltd. | Drehkolbenanlage für flüssige Medien |
FR2668209B1 (fr) * | 1990-10-18 | 1994-11-18 | Hitachi Koki Kk | Pompe d'aspiration moleculaire. |
US5273412A (en) * | 1991-03-28 | 1993-12-28 | Grasso's Koninklijke Machinefabrieken N.V. | Lubricated rotary compressor having a cooling medium inlet to the delivery port |
US5269667A (en) * | 1993-02-24 | 1993-12-14 | Ingersoll-Rand Company | Removabe discharge port plate for a compressor |
-
1996
- 1996-07-08 DE DE59609957T patent/DE59609957D1/de not_active Expired - Fee Related
- 1996-07-08 EP EP96920676A patent/EP0865575B9/de not_active Expired - Lifetime
- 1996-07-08 AT AT96920676T patent/ATE229127T1/de not_active IP Right Cessation
- 1996-07-08 ES ES96920676T patent/ES2186785T3/es not_active Expired - Lifetime
- 1996-07-08 JP JP52157697A patent/JP3330955B2/ja not_active Expired - Fee Related
- 1996-07-08 KR KR10-1998-0704330A patent/KR100384925B1/ko not_active IP Right Cessation
- 1996-07-08 CN CN96199628A patent/CN1083536C/zh not_active Expired - Fee Related
- 1996-07-08 US US09/077,963 patent/US6139297A/en not_active Expired - Fee Related
- 1996-07-08 SK SK780-98A patent/SK78098A3/sk unknown
- 1996-07-08 PT PT96920676T patent/PT865575E/pt unknown
- 1996-07-08 WO PCT/CH1996/000250 patent/WO1997021925A1/de active IP Right Grant
- 1996-07-08 DK DK96920676T patent/DK0865575T4/da active
- 1996-07-08 CZ CZ19981772A patent/CZ289289B6/cs not_active IP Right Cessation
- 1996-07-08 CA CA002240168A patent/CA2240168C/en not_active Expired - Fee Related
-
1998
- 1998-06-10 NO NO982674A patent/NO982674L/no not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714314A (en) * | 1951-05-15 | 1955-08-02 | Howden James & Co Ltd | Rotors for rotary gas compressors and motors |
JPS62291486A (ja) * | 1986-06-12 | 1987-12-18 | Taiko Kikai Kogyo Kk | スクリユ−コンプレツサ− |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 12, no. 182 (M - 702) 27 May 1998 (1998-05-27) * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1026399A1 (de) | 1999-02-08 | 2000-08-09 | Ateliers Busch S.A. | Zwillings-Förderschrauben |
EP1134357A2 (de) * | 2000-03-15 | 2001-09-19 | Teijin Seiki Co., Ltd. | Schraubenrotoren und Schraubenmaschine |
EP1134357A3 (de) * | 2000-03-15 | 2003-01-02 | Teijin Seiki Co., Ltd. | Schraubenrotoren und Schraubenmaschine |
WO2002008609A1 (de) * | 2000-07-25 | 2002-01-31 | Ateliers Busch Sa | Zwillingsschraubenrotoren und solche enthaltende verdrängermaschinen |
US6702558B2 (en) | 2000-07-25 | 2004-03-09 | Ateliers Busch Sa | Twin screw rotors and displacement machines containing the same |
CH694339A5 (de) * | 2000-07-25 | 2004-11-30 | Busch Sa Atel | Zwillingsschraubenmotoren und solche enthaltende Verdrängermaschinen. |
AU2001267247B2 (en) * | 2000-07-25 | 2005-07-07 | Ateliers Busch Sa | Twin screw rotors and displacement machines containing the same |
KR100737321B1 (ko) | 2000-07-25 | 2007-07-09 | 아뜰리에 부쉬 에스.에이. | 쌍 스크루 로터 및 그것을 포함하는 배출기 |
JP2008196505A (ja) * | 2000-07-25 | 2008-08-28 | Atelier Busch Sa | ツイン・スクリュー・ロータおよび押し退け機 |
JP4677469B2 (ja) * | 2000-07-25 | 2011-04-27 | アテリエ ビスク ソシエテ アノニム | ツイン・スクリュー・ロータおよび押し退け機 |
CZ305182B6 (cs) * | 2000-07-25 | 2015-06-03 | Ateliers Busch Sa | Šroubové rotory tvořící dvojčata a vytlačovací stroje s těmito rotory |
Also Published As
Publication number | Publication date |
---|---|
DE59609957D1 (de) | 2003-01-16 |
NO982674D0 (no) | 1998-06-10 |
EP0865575B1 (de) | 2002-12-04 |
CZ289289B6 (cs) | 2001-12-12 |
JP2000501809A (ja) | 2000-02-15 |
CN1083536C (zh) | 2002-04-24 |
US6139297A (en) | 2000-10-31 |
EP0865575A1 (de) | 1998-09-23 |
ES2186785T3 (es) | 2003-05-16 |
JP3330955B2 (ja) | 2002-10-07 |
NO982674L (no) | 1998-08-07 |
DK0865575T3 (da) | 2003-03-24 |
KR19990072036A (ko) | 1999-09-27 |
CA2240168A1 (en) | 1997-06-19 |
PT865575E (pt) | 2003-04-30 |
CA2240168C (en) | 2007-11-27 |
AU719268B2 (en) | 2000-05-04 |
CN1207794A (zh) | 1999-02-10 |
CZ177298A3 (cs) | 2000-03-15 |
KR100384925B1 (ko) | 2003-08-21 |
SK78098A3 (en) | 1999-02-11 |
AU6186196A (en) | 1997-07-03 |
DK0865575T4 (da) | 2007-04-02 |
EP0865575B9 (de) | 2007-06-06 |
EP0865575B2 (de) | 2006-11-29 |
ATE229127T1 (de) | 2002-12-15 |
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