IT1176255B - Pompa a pistoni rotanti - Google Patents
Pompa a pistoni rotantiInfo
- Publication number
- IT1176255B IT1176255B IT21244/84A IT2124484A IT1176255B IT 1176255 B IT1176255 B IT 1176255B IT 21244/84 A IT21244/84 A IT 21244/84A IT 2124484 A IT2124484 A IT 2124484A IT 1176255 B IT1176255 B IT 1176255B
- Authority
- IT
- Italy
- Prior art keywords
- piston pump
- rotary piston
- rotary
- pump
- piston
- 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
- 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
- F04C18/126—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
-
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
- F05C2251/046—Expansivity dissimilar
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/04—Composite, e.g. fibre-reinforced
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary-Type Compressors (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3321718A DE3321718A1 (de) | 1983-06-16 | 1983-06-16 | Waelzkolbenpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8421244A0 IT8421244A0 (it) | 1984-06-04 |
IT8421244A1 IT8421244A1 (it) | 1985-12-04 |
IT1176255B true IT1176255B (it) | 1987-08-18 |
Family
ID=6201619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21244/84A IT1176255B (it) | 1983-06-16 | 1984-06-04 | Pompa a pistoni rotanti |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS6011693A (fr) |
CH (1) | CH665686A5 (fr) |
DE (1) | DE3321718A1 (fr) |
FR (1) | FR2547630B1 (fr) |
GB (1) | GB2141486B (fr) |
IT (1) | IT1176255B (fr) |
NL (1) | NL8401343A (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0290663B1 (fr) * | 1987-05-15 | 1993-08-04 | Leybold Aktiengesellschaft | Pompe à vide à deux arbres, mono-ou polyétagée |
JPH01294985A (ja) * | 1988-05-24 | 1989-11-28 | Ebara Corp | プラスチツクス製ルーツ式ブロワー用ローター |
DE3911314A1 (de) * | 1989-04-07 | 1990-10-11 | Leybold Ag | Vakuumpumpe |
JPH10220371A (ja) | 1997-02-07 | 1998-08-18 | Tochigi Fuji Ind Co Ltd | 流体機械 |
JPH10266982A (ja) * | 1997-03-21 | 1998-10-06 | Tochigi Fuji Ind Co Ltd | ルーツ式流体機械 |
US6264449B1 (en) * | 2000-02-16 | 2001-07-24 | Alexander Maute | Plastic toothed wheel for a toothed wheel pump |
US6325604B1 (en) * | 2000-03-29 | 2001-12-04 | Benjamin R. Du | Plastic gear pump housing |
DE20013338U1 (de) | 2000-08-02 | 2000-12-28 | Werner Rietschle GmbH + Co. KG, 79650 Schopfheim | Verdichter |
GB2418958A (en) * | 2004-10-06 | 2006-04-12 | Boc Group Plc | Vacuum pump with enhanced exhaust heat transfer to stator |
DE102010012759B4 (de) * | 2010-03-25 | 2018-06-21 | Pfeiffer Vacuum Gmbh | Rotor für eine Vakuumpumpe |
KR20140031326A (ko) * | 2011-06-02 | 2014-03-12 | 이턴 코포레이션 | 단순화된 루트 타입 블로워 |
US20140294645A1 (en) * | 2013-03-29 | 2014-10-02 | Dresser Inc. | Rotary element and rotary displacement device comprised thereof |
CN108678950B (zh) * | 2018-07-23 | 2019-08-30 | 长沙理工大学 | 一种罗茨鼓风机叶轮 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1645967A (en) * | 1924-08-29 | 1927-10-18 | Thomas S Patterson | Rotary pump |
US1902347A (en) * | 1931-01-31 | 1933-03-21 | Vogt Instant Freezers Inc | Rotary gear pump |
GB525761A (en) * | 1939-02-28 | 1940-09-04 | Milo Ab | Improvements in or relating to rotary compressors |
GB560591A (en) * | 1942-03-02 | 1944-04-11 | Pump Engineering Service Corp | Improvements in or relating to methods of manufacturing rotors for dry air pumps |
GB762553A (en) * | 1953-10-27 | 1956-11-28 | Svenska Rotor Maskiner Ab | Improvements in or relating to rotary engines, pumps or the like |
DE972862C (de) * | 1953-10-27 | 1959-10-15 | Svenska Rotor Maskiner Ab | Drehkolbenmaschine zur Kompression oder Expansion eines Gases |
US2966860A (en) * | 1957-04-03 | 1961-01-03 | Lobee Pump & Machinery Co | Pump for corrosive fluids |
FR1514820A (fr) * | 1966-03-31 | 1968-02-23 | Riva Calzoni Spa | Pompe à engrenages à denture intérieure ou similaires, particulièrement pour l'alimentation de servo-directions sur véhicules automobiles |
DE2002518C3 (de) * | 1970-01-21 | 1982-04-01 | Fa. Hugo Vogelsang, 4571 Bunnen | Güllepumpe |
GB1528727A (en) * | 1977-06-15 | 1978-10-18 | Craft Lab | Meshing gear liquid pumps |
JPS5715108A (en) * | 1980-06-23 | 1982-01-26 | Boeing Co | Combining method of rivet and parts |
-
1983
- 1983-06-16 DE DE3321718A patent/DE3321718A1/de not_active Withdrawn
-
1984
- 1984-04-26 NL NL8401343A patent/NL8401343A/nl not_active Application Discontinuation
- 1984-05-16 CH CH2405/84A patent/CH665686A5/de not_active IP Right Cessation
- 1984-06-04 IT IT21244/84A patent/IT1176255B/it active
- 1984-06-08 FR FR8409040A patent/FR2547630B1/fr not_active Expired
- 1984-06-14 GB GB08415239A patent/GB2141486B/en not_active Expired
- 1984-06-15 JP JP59123567A patent/JPS6011693A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CH665686A5 (de) | 1988-05-31 |
FR2547630B1 (fr) | 1988-09-09 |
IT8421244A0 (it) | 1984-06-04 |
IT8421244A1 (it) | 1985-12-04 |
JPS6011693A (ja) | 1985-01-21 |
GB2141486A (en) | 1984-12-19 |
FR2547630A1 (fr) | 1984-12-21 |
NL8401343A (nl) | 1985-01-16 |
GB2141486B (en) | 1987-08-05 |
GB8415239D0 (en) | 1984-07-18 |
DE3321718A1 (de) | 1984-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940627 |