GB2066900A - Ejector - Google Patents
EjectorInfo
- Publication number
- GB2066900A GB2066900A GB8104652A GB8104652A GB2066900A GB 2066900 A GB2066900 A GB 2066900A GB 8104652 A GB8104652 A GB 8104652A GB 8104652 A GB8104652 A GB 8104652A GB 2066900 A GB2066900 A GB 2066900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzle
- nozzles
- diameter
- inlet
- ejector
- 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
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
- F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Multi-ejector having at least one set of between two and four nozzles (7-10) arranged in series in order of size in the flow direction, the smallest nozzle (7) constituting the first nozzle. The novel feature of the present multi-ejector resides in the fact that by using the below given connections between the inlet and outlet diameters of the nozzles as well as the distances between adjacent nozzles starting from the inlet diameter (a) of the first nozzle (7) there have been obtained negative pressures amounting to between 7 and 10% of actual air pressure when using a positive pressure of between 3.7 and 6.0 kilopounds per square centimeters. Nozzle Inlet Outlet Distances to Diameter Diameter succeeding nozzles First (7) a 1.5a 0a Second (8) 2.1-2.2a 2.3-2.4a 5a Third (9) 3.6-3.7a 4.0-4.1a 2.5a Fourth (10) 4.5-4.6a 5.6-5.7a
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7905309A SE427954B (en) | 1979-06-15 | 1979-06-15 | EJECTOR |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2066900A true GB2066900A (en) | 1981-07-15 |
GB2066900B GB2066900B (en) | 1983-04-20 |
Family
ID=20338304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8104652A Expired GB2066900B (en) | 1979-06-15 | 1980-06-12 | Ejector |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS56500814A (en) |
AU (1) | AU549039B2 (en) |
DE (1) | DE3049647T1 (en) |
GB (1) | GB2066900B (en) |
SE (1) | SE427954B (en) |
WO (1) | WO1980002863A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2248221A (en) * | 1990-08-14 | 1992-04-01 | Portsmouth Tech Consult | Vacuum gripper device. |
GB2262135A (en) * | 1991-11-27 | 1993-06-09 | Dan Greenberg | Multi ejector vacuum pump |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3025525A1 (en) * | 1980-07-05 | 1982-01-28 | Jürgen 4477 Welver Volkmann | EJECTOR DEVICE |
DE3431240A1 (en) * | 1984-08-24 | 1986-03-06 | Michael 4150 Krefeld Laumen | REFRIGERATION MACHINE OR HEAT PUMP AND JET PUMP HERE |
SE466561B (en) * | 1988-06-08 | 1992-03-02 | Peter Tell | MULTIEJEKTORANORDNING |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1729794A (en) * | 1929-10-01 | Injector ptjmp | ||
FR361049A (en) * | 1905-11-27 | 1906-05-14 | Westinghouse Electric Corp | Advanced diffuser system for ejector |
DE321704C (en) * | 1916-06-10 | 1920-06-11 | British Westinghouse Electric | Jet apparatus for elastic equipment |
DE389520C (en) * | 1918-08-13 | 1924-02-11 | Kurt Hoefer Dr Ing | Jet machine |
DE561872C (en) * | 1929-08-22 | 1932-10-19 | Schmidt Paul | Conveying liquids at high pressure by means of liquid jet pumps |
US2078614A (en) * | 1935-02-05 | 1937-04-27 | G & J Weir Ltd | Multistage ejector |
SE370765B (en) * | 1973-12-05 | 1974-10-28 | Piab Ab | |
DE3025525A1 (en) * | 1980-07-05 | 1982-01-28 | Jürgen 4477 Welver Volkmann | EJECTOR DEVICE |
-
1979
- 1979-06-15 SE SE7905309A patent/SE427954B/en unknown
-
1980
- 1980-06-12 JP JP50133980A patent/JPS56500814A/ja active Pending
- 1980-06-12 AU AU60504/80A patent/AU549039B2/en not_active Expired
- 1980-06-12 GB GB8104652A patent/GB2066900B/en not_active Expired
- 1980-06-12 DE DE803049647T patent/DE3049647T1/en active Granted
- 1980-06-12 WO PCT/SE1980/000168 patent/WO1980002863A1/en active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2248221A (en) * | 1990-08-14 | 1992-04-01 | Portsmouth Tech Consult | Vacuum gripper device. |
GB2262135A (en) * | 1991-11-27 | 1993-06-09 | Dan Greenberg | Multi ejector vacuum pump |
Also Published As
Publication number | Publication date |
---|---|
AU6050480A (en) | 1981-01-05 |
SE427954B (en) | 1983-05-24 |
AU549039B2 (en) | 1986-01-09 |
GB2066900B (en) | 1983-04-20 |
JPS56500814A (en) | 1981-06-18 |
WO1980002863A1 (en) | 1980-12-24 |
SE7905309L (en) | 1980-12-16 |
DE3049647T1 (en) | 1982-02-25 |
DE3049647C2 (en) | 1991-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20000611 |