WO1997021926A1 - Zwillings-förderschrauben - Google Patents
Zwillings-förderschrauben Download PDFInfo
- Publication number
- WO1997021926A1 WO1997021926A1 PCT/CH1996/000251 CH9600251W WO9721926A1 WO 1997021926 A1 WO1997021926 A1 WO 1997021926A1 CH 9600251 W CH9600251 W CH 9600251W WO 9721926 A1 WO9721926 A1 WO 9721926A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flank
- core
- arc
- twin
- cycloid
- 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
- 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
-
- 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
-
- 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
Definitions
- the invention relates to the profile geometries of twin feed screws for axially parallel, off-axis operation in pumps with a pilot gear for guiding the screws in opposite directions.
- Profile geometry, wrap angle, pitch, gap width, medium control and speed determine the pump parameters such as flow rate, efficiency, final pressure, leak rate, temperature, noise and the manufacturing effort.
- SRM profile The geometries from SRM, Sweden, known as the SRM profile, are suitable for the construction of fast-rotating twin-feed screws with unequal profiles in multiple threads and small wrap angles for pumps with medium final pressure.
- the screws are manufactured with wrap angles of 1080 °, 1440 °, 1800 °, etc. and have the same end profiles.
- the outlet is controlled at the end by one of the screws with an opening along the second, involute-shaped profile flank. While maintaining the working principle of the axially moving work cells with twice the length of the slope, the profile geometry should be redesigned and defined in terms of modern series production and an improvement in the volumetric efficiency, the dynamics and the control of the medium should be achieved.
- This object is achieved according to the invention in the case of twin-conveying screws with profile contours made of an arc of a core, a cycloid-shaped hollow flank, an outer circular arc and a second flank in that, in deviation from the known, the second flank 6, called the flank flank, connects to the core circular arc 4 at the base without kinks and that the flank 6 is at least a central, non-rising area, the saddle 7, which connects the partial side flanks thus formed, the inner flank 8 and the outer flank 9 without kinks.
- Fig.l A set of twin feed screws in a single version with pilot gear
- Fig.2 An execution of the profile geometry
- Fig. 3 An embodiment of the twin feed screws in a section along the line AA of Fig. 1, installed in a housing, shown on the same scale as Fig.l.
- Fig. 4 An embodiment of the feed screws in an axial section, in sections.
- the feed screws 1, 2 (Fig.l and 3). Wrap angle of approx. 1600 ° and the same end profiles with a jacket flank that is composed of several flank partial curves:
- the saddle 7 (Fig. 1 and 2) is designed in a circular arc with a radius the size of half the center distance and corresponds in installation to the saddle of the counter screw .
- the inner flank 8 (FIG. 2) consists of an eccentric circular arc, which here is called flank circle 10 (FIG. 2), which adjoins the saddle 7 without a kink, and an extended cycloid, the root cycloid 11 (FIG. 2), which connects without kinking the core arc 4 (Fig.2 and 3).
- the center of the flank circle of the counter screw moves with respect to the profile under consideration on a shortened epicycloid 12 (FIG. 2), the inner parallel curve of which, at a distance from the flank circle radius f, is the outer flank 9 (FIG. 2) of the profile under consideration.
- the hollow-side cycloid 5 (FIGS. 2 and 3) is calculated with a and b.
- the root cycloid 11 is generated by the top corner at the joint outer circle / outer flank of the counter profile and is congruent to part of the hollow flank 5 due to the same levers a, b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Polyesters Or Polycarbonates (AREA)
- Formation And Processing Of Food Products (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Gear Transmission (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002240169A CA2240169C (en) | 1995-12-11 | 1996-07-08 | Twin feed screw |
EP96920677A EP0866918B1 (de) | 1995-12-11 | 1996-07-08 | Zwillings-förderschrauben |
DE59604068T DE59604068D1 (de) | 1995-12-11 | 1996-07-08 | Zwillings-förderschrauben |
DK96920677T DK0866918T3 (da) | 1996-07-08 | 1996-07-08 | Tvillingrotorskruer |
JP52157797A JP4057059B2 (ja) | 1995-12-11 | 1996-07-08 | コンベアウォーム |
SK781-98A SK281393B6 (sk) | 1995-12-11 | 1996-07-08 | Dvojitá dopravná skrutka |
US09/077,965 US6129535A (en) | 1995-12-11 | 1996-07-08 | Twin feed screw |
AT96920677T ATE188277T1 (de) | 1995-12-11 | 1996-07-08 | Zwillings-förderschrauben |
AU61862/96A AU720108B2 (en) | 1995-12-11 | 1996-07-08 | Twin feed screw |
NO982675A NO982675L (no) | 1995-12-11 | 1998-06-10 | Tvilling mateskrue |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH348895 | 1995-12-11 | ||
CH3488/95 | 1995-12-11 | ||
CH3628/95 | 1995-12-21 | ||
CH362895 | 1995-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997021926A1 true WO1997021926A1 (de) | 1997-06-19 |
Family
ID=25693146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1996/000251 WO1997021926A1 (de) | 1995-12-11 | 1996-07-08 | Zwillings-förderschrauben |
Country Status (15)
Country | Link |
---|---|
US (1) | US6129535A (de) |
EP (1) | EP0866918B1 (de) |
JP (1) | JP4057059B2 (de) |
KR (1) | KR100384926B1 (de) |
CN (1) | CN1089409C (de) |
AT (1) | ATE188277T1 (de) |
AU (1) | AU720108B2 (de) |
CA (1) | CA2240169C (de) |
CZ (1) | CZ289348B6 (de) |
DE (1) | DE59604068D1 (de) |
ES (1) | ES2140867T3 (de) |
NO (1) | NO982675L (de) |
PT (1) | PT866918E (de) |
SK (1) | SK281393B6 (de) |
WO (1) | WO1997021926A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0995879A1 (de) * | 1998-10-23 | 2000-04-26 | Ateliers Busch S.A. | Zwillings-Förderschraubenrotoren |
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 |
WO2015162296A3 (de) * | 2014-04-25 | 2015-12-23 | Kaeser Kompressoren Se | Rotorpaar für einen verdichterblock einer schraubenmaschine |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19725462A1 (de) * | 1997-06-16 | 1998-12-24 | Storz Endoskop Gmbh | Medizinische Zahnradpumpe zum Saugen und Spülen |
CA2384748C (en) * | 1999-06-14 | 2009-04-28 | Wei Xiong | A gear and a fluid machine with a pair of engaging gears of this type |
CH694339A9 (de) | 2000-07-25 | 2005-03-15 | Busch Sa Atel | Zwillingsschraubenrotoren und solche enthaltende Ve rdraengermaschinen. |
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 |
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 |
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 |
CN100538078C (zh) * | 2005-02-16 | 2009-09-09 | 阿特里尔斯布希股份有限公司 | 具有非对称轮廓转子的容积转动机器 |
CN103195716B (zh) * | 2013-05-07 | 2015-09-02 | 巫修海 | 一种新型齿形螺杆型线 |
WO2014182090A1 (ko) * | 2013-05-10 | 2014-11-13 | 주식회사 케이티 | 무선랜 시스템에서 숨겨진 노드 문제의 완화 방법 |
KR102282062B1 (ko) | 2019-12-09 | 2021-07-26 | 김봉군 | 건축자재의 이송방법 및 그 장치 |
KR102294105B1 (ko) | 2019-12-09 | 2021-08-25 | 김봉군 | 고층 건물용 건축자재의 이송방법 및 그 장치 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB746628A (en) * | 1953-04-06 | 1956-03-14 | Dresser Ind | Improvements in pumps or motors of the meshing screw type |
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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU956840A1 (ru) * | 1981-02-27 | 1982-09-07 | Предприятие П/Я А-3884 | Винтовой компрессор |
GB2165890B (en) * | 1984-10-24 | 1988-08-17 | Stothert & Pitt Plc | Improvements in pumps |
JP2904719B2 (ja) * | 1995-04-05 | 1999-06-14 | 株式会社荏原製作所 | スクリューロータ及びその歯形の軸直角断面形状を決定する方法並びにスクリュー機械 |
-
1996
- 1996-07-08 DE DE59604068T patent/DE59604068D1/de not_active Expired - Fee Related
- 1996-07-08 EP EP96920677A patent/EP0866918B1/de not_active Expired - Lifetime
- 1996-07-08 AU AU61862/96A patent/AU720108B2/en not_active Ceased
- 1996-07-08 US US09/077,965 patent/US6129535A/en not_active Expired - Fee Related
- 1996-07-08 CN CN96199627A patent/CN1089409C/zh not_active Expired - Fee Related
- 1996-07-08 AT AT96920677T patent/ATE188277T1/de not_active IP Right Cessation
- 1996-07-08 KR KR10-1998-0704358A patent/KR100384926B1/ko not_active IP Right Cessation
- 1996-07-08 PT PT96920677T patent/PT866918E/pt unknown
- 1996-07-08 WO PCT/CH1996/000251 patent/WO1997021926A1/de active IP Right Grant
- 1996-07-08 JP JP52157797A patent/JP4057059B2/ja not_active Expired - Fee Related
- 1996-07-08 CZ CZ19981771A patent/CZ289348B6/cs not_active IP Right Cessation
- 1996-07-08 SK SK781-98A patent/SK281393B6/sk unknown
- 1996-07-08 ES ES96920677T patent/ES2140867T3/es not_active Expired - Lifetime
- 1996-07-08 CA CA002240169A patent/CA2240169C/en not_active Expired - Fee Related
-
1998
- 1998-06-10 NO NO982675A patent/NO982675L/no not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB746628A (en) * | 1953-04-06 | 1956-03-14 | Dresser Ind | Improvements in pumps or motors of the meshing screw type |
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 1988 (1988-05-27) * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1113151C (zh) * | 1998-10-23 | 2003-07-02 | 阿特里尔斯布希股份有限公司 | 装在可压缩介质挤出机中的双螺旋转子 |
WO2000025004A1 (de) * | 1998-10-23 | 2000-05-04 | Ateliers Busch S.A. | Zwillingsschraubenrotoren zum einbau in verdrängermaschinen für kompressible medien |
EP0995879A1 (de) * | 1998-10-23 | 2000-04-26 | Ateliers Busch S.A. | Zwillings-Förderschraubenrotoren |
US6447276B1 (en) | 1998-10-23 | 2002-09-10 | Ateliers Busch Sa | Twin screw rotors for installation in displacement machines for compressible media |
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 |
WO2015162296A3 (de) * | 2014-04-25 | 2015-12-23 | Kaeser Kompressoren Se | Rotorpaar für einen verdichterblock einer schraubenmaschine |
JP2017514069A (ja) * | 2014-04-25 | 2017-06-01 | カエザー・コンプレソーレン・エスエーKaeser Compressoren Se | スクリューマシンの圧縮ブロック用のロータ対 |
EP3134649B1 (de) | 2014-04-25 | 2018-04-04 | Kaeser Kompressoren SE | Rotorpaar für einen verdichterblock einer schraubenmaschine |
EP3358189A1 (de) * | 2014-04-25 | 2018-08-08 | Kaeser Kompressoren SE | Rotorpaar für einen verdichterblock einer schraubenmaschine |
US10400769B2 (en) | 2014-04-25 | 2019-09-03 | Kaeser Kompressoren Se | Rotor pair for a compression block of a screw machine |
EP3597920A3 (de) * | 2014-04-25 | 2021-03-24 | Kaeser Kompressoren Se | Rotorpaar für einen verdichterblock einer schraubenmaschine |
US11248606B2 (en) | 2014-04-25 | 2022-02-15 | Kaeser Kompressoren Se | Rotor pair for a compression block of a screw machine |
Also Published As
Publication number | Publication date |
---|---|
ATE188277T1 (de) | 2000-01-15 |
EP0866918A1 (de) | 1998-09-30 |
NO982675D0 (no) | 1998-06-10 |
SK78198A3 (en) | 1999-02-11 |
US6129535A (en) | 2000-10-10 |
CN1207795A (zh) | 1999-02-10 |
AU720108B2 (en) | 2000-05-25 |
JP4057059B2 (ja) | 2008-03-05 |
AU6186296A (en) | 1997-07-03 |
SK281393B6 (sk) | 2001-03-12 |
CZ289348B6 (cs) | 2002-01-16 |
JP2000501810A (ja) | 2000-02-15 |
CA2240169C (en) | 2007-12-04 |
KR19990072057A (ko) | 1999-09-27 |
PT866918E (pt) | 2000-04-28 |
CA2240169A1 (en) | 1997-06-19 |
ES2140867T3 (es) | 2000-03-01 |
KR100384926B1 (ko) | 2003-08-21 |
DE59604068D1 (de) | 2000-02-03 |
CN1089409C (zh) | 2002-08-21 |
CZ177198A3 (cs) | 2000-03-15 |
NO982675L (no) | 1998-08-07 |
EP0866918B1 (de) | 1999-12-29 |
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