FR2368622A1 - Paire de rotors pour pompe a piston rotatif - Google Patents
Paire de rotors pour pompe a piston rotatifInfo
- Publication number
- FR2368622A1 FR2368622A1 FR7730669A FR7730669A FR2368622A1 FR 2368622 A1 FR2368622 A1 FR 2368622A1 FR 7730669 A FR7730669 A FR 7730669A FR 7730669 A FR7730669 A FR 7730669A FR 2368622 A1 FR2368622 A1 FR 2368622A1
- Authority
- FR
- France
- Prior art keywords
- rotors
- section
- pair
- piston pump
- rotary piston
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—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)
- Reciprocating Pumps (AREA)
Abstract
Chaque flanc des rotors 4, 5 comprend une section 16 en forme de développante destinée à coopérer avec une section semblable de l'autre rotor. A l'intérieur de cette section, le flanc comprend une partie 15 en forme d'arc de cercle, et à l'extérieur de cette section, une partie 17 sensiblement rectiligne qui produit des pertes réduites par écoulement à des vitesses de rotation élevées sans création d'un trou de soufflage entre l'échappement 3 et l'admission 2 de la machine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7611579A SE414814B (sv) | 1976-10-19 | 1976-10-19 | Rotorpar for en blasmaskin |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2368622A1 true FR2368622A1 (fr) | 1978-05-19 |
FR2368622B1 FR2368622B1 (fr) | 1983-09-23 |
Family
ID=20329179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7730669A Granted FR2368622A1 (fr) | 1976-10-19 | 1977-10-12 | Paire de rotors pour pompe a piston rotatif |
Country Status (9)
Country | Link |
---|---|
US (1) | US4227869A (fr) |
JP (1) | JPS5354304A (fr) |
BE (1) | BE859693A (fr) |
CA (1) | CA1086277A (fr) |
DE (1) | DE2746693A1 (fr) |
FR (1) | FR2368622A1 (fr) |
GB (1) | GB1547116A (fr) |
IT (1) | IT1090189B (fr) |
SE (1) | SE414814B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993011357A1 (fr) * | 1991-11-27 | 1993-06-10 | John S. Barnes Gmbh | Machine a engrenages |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1155626B (it) * | 1982-02-23 | 1987-01-28 | Fiat Auto Spa | Compressore volumetrico rotativo del tipo roots |
GB2125109A (en) * | 1982-08-10 | 1984-02-29 | Paul William Nachtrieb | Rotary positive-displacement fluid-machines |
JPS59135391U (ja) * | 1983-03-01 | 1984-09-10 | アイシン精機株式会社 | 流体機器 |
JPS6075793A (ja) * | 1983-09-30 | 1985-04-30 | Aisin Seiki Co Ltd | ル−ツ型ブロア |
US4643654A (en) * | 1985-09-12 | 1987-02-17 | American Standard Inc. | Screw rotor profile and method for generating |
JP2761233B2 (ja) * | 1989-02-17 | 1998-06-04 | 富士重工業株式会社 | ルーツ型ブロワ |
US5318415A (en) * | 1992-10-02 | 1994-06-07 | Gramprotex Holdings Inc. | Grooved pump chamber walls for flushing fiber deposits |
BRPI0413275A (pt) | 2003-08-04 | 2006-10-10 | Pulmonetic Systems Inc | ventilador portátil, e, sistema de ventilador portátil |
US7527053B2 (en) | 2003-08-04 | 2009-05-05 | Cardinal Health 203, Inc. | Method and apparatus for attenuating compressor noise |
US20050112013A1 (en) * | 2003-08-04 | 2005-05-26 | Pulmonetic Systems, Inc. | Method and apparatus for reducing noise in a roots-type blower |
US8118024B2 (en) | 2003-08-04 | 2012-02-21 | Carefusion 203, Inc. | Mechanical ventilation system utilizing bias valve |
US8156937B2 (en) | 2003-08-04 | 2012-04-17 | Carefusion 203, Inc. | Portable ventilator system |
US7607437B2 (en) | 2003-08-04 | 2009-10-27 | Cardinal Health 203, Inc. | Compressor control system and method for a portable ventilator |
US7997885B2 (en) | 2007-12-03 | 2011-08-16 | Carefusion 303, Inc. | Roots-type blower reduced acoustic signature method and apparatus |
US8888711B2 (en) | 2008-04-08 | 2014-11-18 | Carefusion 203, Inc. | Flow sensor |
GB2468876B (en) * | 2009-03-25 | 2011-06-29 | Environmental Mfg Llp | A rotary mechanism |
DE102013110091B3 (de) * | 2013-09-13 | 2015-02-12 | Pfeiffer Vacuum Gmbh | Wälzkolbenpumpe mit zwei Rotoren |
CN108757448B (zh) * | 2018-07-12 | 2023-08-08 | 中国石油大学(华东) | 一种三叶分段圆弧型罗茨转子及其型线设计方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB439908A (en) * | 1934-09-28 | 1935-12-17 | Brown David & Sons Ltd | Improvements in rotors for pumps and blowers |
FR2013168A1 (fr) * | 1968-07-18 | 1970-03-27 | Maag Zahnraeder & Maschinen Ag |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US325276A (en) * | 1885-09-01 | Rotary pump | ||
FR741835A (fr) * | 1933-02-21 | |||
DE499675C (de) * | 1927-01-04 | 1930-06-14 | Josef Kozousek | Zahnradverdichter, -pumpe o. dgl. mit Evolventen- oder Zykloidenverzahnung |
DE861733C (de) * | 1950-10-25 | 1953-01-05 | Hartmann A G Maschf | Drehkolben fuer Geblaese od. dgl. |
US3089638A (en) * | 1958-12-01 | 1963-05-14 | Dresser Ind | Impellers for fluid handling apparatus of the rotary positive displacement type |
-
1976
- 1976-10-19 SE SE7611579A patent/SE414814B/xx not_active IP Right Cessation
-
1977
- 1977-10-12 IT IT51385/77A patent/IT1090189B/it active
- 1977-10-12 FR FR7730669A patent/FR2368622A1/fr active Granted
- 1977-10-13 BE BE181715A patent/BE859693A/fr not_active IP Right Cessation
- 1977-10-17 US US05/842,559 patent/US4227869A/en not_active Expired - Lifetime
- 1977-10-18 CA CA288,952A patent/CA1086277A/fr not_active Expired
- 1977-10-18 DE DE19772746693 patent/DE2746693A1/de active Granted
- 1977-10-19 GB GB43476/77A patent/GB1547116A/en not_active Expired
- 1977-10-19 JP JP12464177A patent/JPS5354304A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB439908A (en) * | 1934-09-28 | 1935-12-17 | Brown David & Sons Ltd | Improvements in rotors for pumps and blowers |
FR2013168A1 (fr) * | 1968-07-18 | 1970-03-27 | Maag Zahnraeder & Maschinen Ag |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993011357A1 (fr) * | 1991-11-27 | 1993-06-10 | John S. Barnes Gmbh | Machine a engrenages |
Also Published As
Publication number | Publication date |
---|---|
IT1090189B (it) | 1985-06-18 |
CA1086277A (fr) | 1980-09-23 |
DE2746693C2 (fr) | 1988-07-28 |
SE7611579L (sv) | 1978-04-20 |
BE859693A (fr) | 1978-02-01 |
US4227869A (en) | 1980-10-14 |
GB1547116A (en) | 1979-06-06 |
SE414814B (sv) | 1980-08-18 |
DE2746693A1 (de) | 1978-04-20 |
JPS5354304A (en) | 1978-05-17 |
FR2368622B1 (fr) | 1983-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |