SE7502316L - - Google Patents
Info
- Publication number
- SE7502316L SE7502316L SE7502316A SE7502316A SE7502316L SE 7502316 L SE7502316 L SE 7502316L SE 7502316 A SE7502316 A SE 7502316A SE 7502316 A SE7502316 A SE 7502316A SE 7502316 L SE7502316 L SE 7502316L
- Authority
- SE
- Sweden
- Prior art keywords
- generated
- profile
- radius
- arc
- curve
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
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
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/082—Details specially related to intermeshing engagement type machines or engines
- F01C1/084—Toothed wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
- Rotary-Type Compressors (AREA)
- Gears, Cams (AREA)
- Milling Processes (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
1503488 Rotary positive-displacement fluidmachines SVENSKA ROTOR MASKINER AB 20 Feb 1975 [6 March 1974] 10070/74 Heading F1F In the profile of each helical groove of a female rotor 30 for a meshing-screw machine a curve 68, 74 and straight line 74, 82 meet on the respective pitch-circle, the angle # of the common tangent at point 74 relative to a radial line through said point being 30 degrees or less. Preferably, the profile also comprises circular arcs 66, 78 and 66, 88 of radius r, another circular arc 78, 82 of radius R, a curve 88, 90 generated by a point 114 on the profile of each helical land of the associated male rotor 28, a straight line 76, 90, which lies on a radius of the pitch-circle, and a curve 70, 76, the radius r being about 40% of the pitch-circle radius and the radius R about four-thirds r. The curve 68, 74 may be generated by a straight line 104, 118 in the male rotor land profile, the curve 70, 76 being generated by a straight line 106, 120 in said profile. The angle α subtended by each of the arcs 66, 78 and 66, 88 at the pitch-point is about 10 degrees. The profile of the male rotor land may include circular arcs 96, 108 and 96, 114 indentical with the arcs 66, 78 and 66, 88 save for undercutting to form a sealing strip at 96, an arc 108, 112 generated by the arc 78, 82 an arc generated by the line 74, 82 and arc 104, 112 generated by the point 90, and an arc 106, 116 generated by the line 76, 90. When the machine is a compressor the flank 62 of the female rotor groove is the leading one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1007074A GB1503488A (en) | 1974-03-06 | 1974-03-06 | Meshing screw rotor fluid maching |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE7502316L true SE7502316L (en) | 1975-09-08 |
| SE418522B SE418522B (en) | 1981-06-09 |
| SE418522C SE418522C (en) | 1988-02-08 |
Family
ID=9960893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7502316A SE418522C (en) | 1974-03-06 | 1975-03-03 | Screw machine |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPH0127241B2 (en) |
| BE (1) | BE826392A (en) |
| CA (1) | CA1057252A (en) |
| CS (1) | CS194716B2 (en) |
| DD (1) | DD118141A5 (en) |
| DE (2) | DE2508435C3 (en) |
| DK (1) | DK145953C (en) |
| FI (1) | FI57825B (en) |
| FR (1) | FR2263399B1 (en) |
| GB (1) | GB1503488A (en) |
| IT (1) | IT1033482B (en) |
| SE (1) | SE418522C (en) |
| SU (1) | SU1153840A3 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE386960B (en) * | 1974-06-24 | 1976-08-23 | Atlas Copco Ab | ROTORS FOR SCREWDRIVER MACHINE |
| JPS52130008A (en) * | 1976-04-23 | 1977-11-01 | Hitachi Ltd | Screw_rotor |
| JPS52130007A (en) * | 1976-04-23 | 1977-11-01 | Hitachi Ltd | Screw-rotor |
| DD128035B1 (en) * | 1976-09-27 | 1979-12-27 | Dieter Mosemann | SCREW ROTORS |
| DE2953832C1 (en) * | 1979-03-23 | 1987-11-12 | Gutehoffnungshuette Man | Screw rotor machine |
| DE2911415C2 (en) | 1979-03-23 | 1982-04-15 | Karl Prof.Dr.-Ing. 3000 Hannover Bammert | Parallel and external axis rotary piston machine with meshing engagement |
| JPS6042359B2 (en) * | 1979-09-14 | 1985-09-21 | 株式会社日立製作所 | screw rotor |
| JPS5644492A (en) * | 1979-09-20 | 1981-04-23 | Tokico Ltd | Rotor for screw compressor |
| IN157732B (en) * | 1981-02-06 | 1986-05-24 | Svenska Rotor Maskiner Ab | |
| US4412796A (en) * | 1981-08-25 | 1983-11-01 | Ingersoll-Rand Company | Helical screw rotor profiles |
| JPS59144185U (en) * | 1983-03-16 | 1984-09-26 | 株式会社神戸製鋼所 | Screw rotor of screw compressor etc. |
| JPS61201894A (en) * | 1985-03-04 | 1986-09-06 | Hitachi Ltd | Screw rotor tooth form |
| JPS6463688A (en) * | 1987-09-01 | 1989-03-09 | Kobe Steel Ltd | Screw rotor for screw compressor |
| DE4342509A1 (en) * | 1993-12-08 | 1995-06-14 | Mannesmann Ag | Parallel and external axis rotary piston machine |
| GB9610289D0 (en) | 1996-05-16 | 1996-07-24 | Univ City | Plural screw positive displacement machines |
| DE102006035782B4 (en) * | 2006-08-01 | 2018-10-25 | Gea Refrigeration Germany Gmbh | Screw compressor for extremely high operating pressures |
| GB2477777B (en) | 2010-02-12 | 2012-05-23 | Univ City | Lubrication of screw expanders |
| GB2484718A (en) | 2010-10-21 | 2012-04-25 | Univ City | A screw expander having a bleed port |
| GB2501302B (en) | 2012-04-19 | 2016-08-31 | The City Univ | Reduced noise screw machines |
| KR20170024056A (en) * | 2014-06-26 | 2017-03-06 | 스벤스카 로토르 마스키너 아베 | Pair of co-operating screw rotors |
| CN108626113A (en) * | 2018-07-03 | 2018-10-09 | 浙江融乐环境科技有限公司 | A kind of middle open type double-helix screw pump |
| CN112032050B (en) * | 2020-05-19 | 2022-08-23 | 宁波鲍斯能源装备股份有限公司 | Screw pump rotor molded lines and have screw pump of this screw pump rotor molded lines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2174522A (en) * | 1935-02-12 | 1939-10-03 | Lysholm Alf | Rotary screw apparatus |
| SE310751B (en) | 1963-12-23 | 1969-05-12 | Svenska Rotor Maskiner Ab | |
| GB1197432A (en) | 1966-07-29 | 1970-07-01 | Svenska Rotor Maskiner Ab | Improvements in and relating to Rotary Positive Displacement Machines of the Intermeshing Screw Type and Rotors therefor |
-
1974
- 1974-03-06 GB GB1007074A patent/GB1503488A/en not_active Expired
-
1975
- 1975-02-26 FI FI750556A patent/FI57825B/en not_active Application Discontinuation
- 1975-02-27 DE DE19752508435 patent/DE2508435C3/en not_active Expired
- 1975-02-27 DE DE19752560045 patent/DE2560045C3/en not_active Expired
- 1975-03-03 SE SE7502316A patent/SE418522C/en not_active IP Right Cessation
- 1975-03-04 CS CS145975A patent/CS194716B2/en unknown
- 1975-03-04 DD DD18455775A patent/DD118141A5/xx unknown
- 1975-03-05 DK DK89675A patent/DK145953C/en not_active IP Right Cessation
- 1975-03-05 FR FR7506898A patent/FR2263399B1/fr not_active Expired
- 1975-03-06 BE BE154094A patent/BE826392A/en not_active IP Right Cessation
- 1975-03-06 CA CA221,415A patent/CA1057252A/en not_active Expired
- 1975-03-06 JP JP50027570A patent/JPH0127241B2/ja not_active Expired
- 1975-03-06 SU SU752114700A patent/SU1153840A3/en active
- 1975-03-06 IT IT2100075A patent/IT1033482B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK145953C (en) | 1983-09-26 |
| CS194716B2 (en) | 1979-12-31 |
| DE2560045C3 (en) | 1986-03-27 |
| DD118141A5 (en) | 1976-02-12 |
| FR2263399B1 (en) | 1979-03-02 |
| DK89675A (en) | 1975-09-07 |
| SE418522B (en) | 1981-06-09 |
| BE826392A (en) | 1975-06-30 |
| JPS50143106A (en) | 1975-11-18 |
| SU1153840A3 (en) | 1985-04-30 |
| FI57825B (en) | 1980-06-30 |
| DE2508435B2 (en) | 1979-09-06 |
| DK145953B (en) | 1983-04-25 |
| DE2560045B1 (en) | 1980-02-21 |
| AU7853075A (en) | 1976-08-26 |
| DE2508435A1 (en) | 1975-09-11 |
| GB1503488A (en) | 1978-03-08 |
| JPH0127241B2 (en) | 1989-05-29 |
| CA1057252A (en) | 1979-06-26 |
| SE418522C (en) | 1988-02-08 |
| IT1033482B (en) | 1979-07-10 |
| FR2263399A1 (en) | 1975-10-03 |
| DE2508435C3 (en) | 1980-06-12 |
| FI750556A (en) | 1975-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
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| NUG | Patent has lapsed |
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