DE59002169D1 - SCREW PUMP. - Google Patents
SCREW PUMP.Info
- Publication number
- DE59002169D1 DE59002169D1 DE9090110215T DE59002169T DE59002169D1 DE 59002169 D1 DE59002169 D1 DE 59002169D1 DE 9090110215 T DE9090110215 T DE 9090110215T DE 59002169 T DE59002169 T DE 59002169T DE 59002169 D1 DE59002169 D1 DE 59002169D1
- Authority
- DE
- Germany
- Prior art keywords
- spindles
- internal chamber
- spindle
- sealed
- pump
- 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.)
- Expired - Fee Related
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
- F04C2/086—Carter
-
- 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
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps 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
- F04C2/16—Rotary-piston machines or pumps 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
- F04C2/165—Rotary-piston machines or pumps 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 having more than two rotary pistons with parallel axes
Abstract
In the case of a screw spindle pump (10) with drive spindle (18) arranged in the internal chamber (12) of a pump housing (14) and at least one sealed spindle (16) axially parallel to this together with an intake (76) and an outlet (78) for a flow medium to be delivered by the spindles (16, 18), the spindles (16, 18) are enclosed by a tubular housing insert (64), which with the pump housing (14) enveloping it defines at least one annular chamber (15) connected to the internal chamber (12) accommodating the spindles by at least one through hole (68). The annular chamber is sealed off from the internal chamber (12) on the intake side and provided at its pressure-side end with the radial through holes (68). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3920900A DE3920900A1 (en) | 1989-06-26 | 1989-06-26 | SCREW PUMP |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59002169D1 true DE59002169D1 (en) | 1993-09-09 |
Family
ID=6383606
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3920900A Withdrawn DE3920900A1 (en) | 1989-06-26 | 1989-06-26 | SCREW PUMP |
DE9090110215T Expired - Fee Related DE59002169D1 (en) | 1989-06-26 | 1990-05-30 | SCREW PUMP. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3920900A Withdrawn DE3920900A1 (en) | 1989-06-26 | 1989-06-26 | SCREW PUMP |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0405160B1 (en) |
AT (1) | ATE92594T1 (en) |
DE (2) | DE3920900A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19715224C2 (en) * | 1997-04-11 | 1999-04-15 | Leistritz Ag | Hydro rope elevator |
DE102005025816B4 (en) * | 2005-06-02 | 2010-06-02 | Joh. Heinr. Bornemann Gmbh | Screw Pump |
CN103758758B (en) * | 2014-01-17 | 2015-11-25 | 西安交通大学 | A kind of AC servo direct-driving type electricity liquid pump |
DE102014102390B3 (en) * | 2014-02-25 | 2015-03-26 | Leistritz Pumpen Gmbh | Screw Pump |
DE102019118086A1 (en) * | 2019-07-04 | 2021-01-07 | Nidec Gpm Gmbh | Integrated screw spindle coolant pump |
DE102020133555A1 (en) | 2020-12-15 | 2022-06-15 | Leistritz Pumpen Gmbh | screw pump |
DE102021113724A1 (en) * | 2021-05-27 | 2022-12-01 | Jung & Co. Gerätebau GmbH | Single-flow screw pump |
DE102021133112A1 (en) | 2021-12-14 | 2023-06-15 | Leistritz Pumpen Gmbh | screw pump |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB578057A (en) * | 1944-04-05 | 1946-06-13 | Stothert & Pitt Ltd | Improvements in screw displacement pumps |
US2592476A (en) * | 1948-02-07 | 1952-04-08 | Laval Steam Turbine Co | Series arrangement of positive and nonpositive screw pumps |
US2873909A (en) * | 1954-10-26 | 1959-02-17 | Svenska Rotor Maskiner Ab | Rotary devices and casing structures therefor |
FR1245458A (en) * | 1959-02-04 | 1960-11-04 | Imo Industri Ab | Helical gear pump |
DE2520667C2 (en) * | 1975-05-09 | 1984-11-29 | Allweiler Ag, 7760 Radolfzell | Screw pump |
DE3737358A1 (en) * | 1987-11-04 | 1989-05-18 | Allweiler Ag | Bearing housing for an inside-mounted screw pump, and method for its manufacture |
-
1989
- 1989-06-26 DE DE3920900A patent/DE3920900A1/en not_active Withdrawn
-
1990
- 1990-05-30 DE DE9090110215T patent/DE59002169D1/en not_active Expired - Fee Related
- 1990-05-30 EP EP90110215A patent/EP0405160B1/en not_active Expired - Lifetime
- 1990-05-30 AT AT90110215T patent/ATE92594T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0405160B1 (en) | 1993-08-04 |
DE3920900A1 (en) | 1991-01-03 |
EP0405160A1 (en) | 1991-01-02 |
ATE92594T1 (en) | 1993-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |