FR2127729A5 - - Google Patents
Info
- Publication number
- FR2127729A5 FR2127729A5 FR7206074A FR7206074A FR2127729A5 FR 2127729 A5 FR2127729 A5 FR 2127729A5 FR 7206074 A FR7206074 A FR 7206074A FR 7206074 A FR7206074 A FR 7206074A FR 2127729 A5 FR2127729 A5 FR 2127729A5
- Authority
- FR
- France
- 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.)
- Expired
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
- 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
- F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712108714 DE2108714B2 (en) | 1971-02-24 | 1971-02-24 | PARALLEL AND EXTERNAL ROTARY PISTON MACHINE |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2127729A5 true FR2127729A5 (en) | 1972-10-13 |
Family
ID=5799665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7206074A Expired FR2127729A5 (en) | 1971-02-24 | 1972-02-23 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3817667A (en) |
AT (1) | AT314062B (en) |
CH (1) | CH537526A (en) |
DE (1) | DE2108714B2 (en) |
FR (1) | FR2127729A5 (en) |
GB (1) | GB1345107A (en) |
IT (1) | IT947817B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8603287A (en) * | 1984-12-07 | 1987-04-01 | Naaktgeboren Maschf Rotterdam | Material-handling pneumatic transporting device - has fluidising discharge bin having discharge and fluidising funnels to disintegrate material |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4033708A (en) * | 1974-08-28 | 1977-07-05 | Calspan Corporation | Rotary compressor |
IT1155626B (en) * | 1982-02-23 | 1987-01-28 | Fiat Auto Spa | ROOTS TYPE ROTARY VOLUMETRIC COMPRESSOR |
US5039289A (en) * | 1983-11-07 | 1991-08-13 | Wankel Gmbh | Rotary piston blower having piston lobe portions shaped to avoid compression pockets |
DE3519170A1 (en) * | 1985-05-29 | 1986-12-04 | Wankel Gmbh | External-shaft rotary-piston blower |
US4940394A (en) * | 1988-10-18 | 1990-07-10 | Baker Hughes, Inc. | Adjustable wearplates rotary pump |
JP2946010B2 (en) * | 1993-03-15 | 1999-09-06 | 小倉クラッチ株式会社 | air pump |
US6095781A (en) * | 1997-09-11 | 2000-08-01 | Viking Pump, Inc. | Timed element, high pressure, industrial rotary lobe pump |
FR2859000B1 (en) * | 2003-08-20 | 2005-09-30 | Renault Sa | GEAR TOOTH AND EXTERNAL GEAR PUMP |
DE102005017575A1 (en) * | 2004-08-05 | 2006-03-16 | Börger GmbH | Rotary pump with a pump housing and two double-winged rotary pistons |
DE102006041633A1 (en) * | 2006-09-05 | 2008-03-13 | Herold & Co. Gmbh | pump |
CN103486041B (en) * | 2013-10-14 | 2016-03-02 | 山东伯仲真空设备股份有限公司 | Roots pump rotor |
CN107061271B (en) * | 2017-03-08 | 2020-06-23 | 杭州电子科技大学 | Wide-head rotor of high-vacuum displacement pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2321696A (en) * | 1940-02-06 | 1943-06-15 | Imo Industri Ab | Screw rotor |
FR1105103A (en) * | 1953-09-21 | 1955-11-28 | Saurer Ag Adolph | Rotary compressor fitted with heliocoidal toothed rotors |
FR1170967A (en) * | 1957-04-08 | 1959-01-21 | Expl Du Generateur A Piston Li | Gear pumps and motors |
GB837128A (en) * | 1957-07-18 | 1960-06-09 | John Wilmott Marshall | Rotary pumps and engines |
DE1503553A1 (en) * | 1965-03-20 | 1970-03-26 | Wilhelm Klein Inhaber Otto Sch | Rotary piston blower, so-called Roots blower |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30157A (en) * | 1860-09-25 | -roots | ||
US647951A (en) * | 1898-10-17 | 1900-04-24 | P H & F M Roots Company | Rotary pump. |
US704224A (en) * | 1902-01-11 | 1902-07-08 | P H & F M Roots Company | Rotary pump. |
US1361423A (en) * | 1916-04-19 | 1920-12-07 | Waterous Engine Works Company | Rotary pump |
US3089638A (en) * | 1958-12-01 | 1963-05-14 | Dresser Ind | Impellers for fluid handling apparatus of the rotary positive displacement type |
DE1403517A1 (en) * | 1960-07-16 | 1968-11-28 | Differential Diesel Engines Es | Roots compressor |
US3105634A (en) * | 1960-12-27 | 1963-10-01 | Polysius Gmbh | Rotary piston for a roots blower |
US3371856A (en) * | 1966-03-24 | 1968-03-05 | Fuller Co | Modified cycloidal impeller |
-
1971
- 1971-02-24 DE DE19712108714 patent/DE2108714B2/en not_active Ceased
-
1972
- 1972-02-21 CH CH245072A patent/CH537526A/en not_active IP Right Cessation
- 1972-02-21 AT AT139572A patent/AT314062B/en not_active IP Right Cessation
- 1972-02-22 US US00228251A patent/US3817667A/en not_active Expired - Lifetime
- 1972-02-23 FR FR7206074A patent/FR2127729A5/fr not_active Expired
- 1972-02-23 IT IT20914/72A patent/IT947817B/en active
- 1972-02-24 GB GB850672A patent/GB1345107A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2321696A (en) * | 1940-02-06 | 1943-06-15 | Imo Industri Ab | Screw rotor |
FR1105103A (en) * | 1953-09-21 | 1955-11-28 | Saurer Ag Adolph | Rotary compressor fitted with heliocoidal toothed rotors |
FR1170967A (en) * | 1957-04-08 | 1959-01-21 | Expl Du Generateur A Piston Li | Gear pumps and motors |
GB837128A (en) * | 1957-07-18 | 1960-06-09 | John Wilmott Marshall | Rotary pumps and engines |
DE1503553A1 (en) * | 1965-03-20 | 1970-03-26 | Wilhelm Klein Inhaber Otto Sch | Rotary piston blower, so-called Roots blower |
Non-Patent Citations (1)
Title |
---|
REVUE TECHNIQUE SULZER, vol. 53, no. 4, 1971, pages 267-279 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8603287A (en) * | 1984-12-07 | 1987-04-01 | Naaktgeboren Maschf Rotterdam | Material-handling pneumatic transporting device - has fluidising discharge bin having discharge and fluidising funnels to disintegrate material |
Also Published As
Publication number | Publication date |
---|---|
DE2108714A1 (en) | 1972-09-07 |
AT314062B (en) | 1974-03-25 |
DE2108714B2 (en) | 1973-05-30 |
US3817667A (en) | 1974-06-18 |
IT947817B (en) | 1973-05-30 |
CH537526A (en) | 1973-05-31 |
GB1345107A (en) | 1974-01-30 |