GB191415054A - Improvements in Hydraulic Pumps. - Google Patents
Improvements in Hydraulic Pumps.Info
- Publication number
- GB191415054A GB191415054A GB191415054DA GB191415054A GB 191415054 A GB191415054 A GB 191415054A GB 191415054D A GB191415054D A GB 191415054DA GB 191415054 A GB191415054 A GB 191415054A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plungers
- springs
- stroke
- pressure
- strokes
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
- F04B49/121—Lost-motion device in the driving mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
15,054. Davidson, J. June 23. Stroke, varying.-A pump for producing a gradually increasing pressure and maintaining the pressure at a predetermined amount is provided with plungers which are positively actuated on their suction strokes and actuated through the medium of compression springs on their delivery strokes. The driving- shaft 17 carries eccentrics 16 operating rods 15, which reciprocate the frame 14, 31, 26. The pump cylinders are formed in pairs 6, 6 with oppositely-extending plungers 13, 32, which extend through the cross-heads 14, 26 and are provided with lock-nuts 22, 29. Collars 19, 30 are pressed against shoulders 21, 28 on the plungers by springs 20, 27, so that, on the suction strokes, the plungers are positively moved, and on the delivery strokes, are moved through the medium of the springs. The stroke of the plungers decreases gradually while the pressure increases, and at the maximum pressure, the plungers have no stroke, the full movement of the cross-heads being taken by the springs.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191415054T | 1914-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191415054A true GB191415054A (en) | 1915-03-11 |
Family
ID=34360758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191415054D Expired GB191415054A (en) | 1914-06-23 | 1914-06-23 | Improvements in Hydraulic Pumps. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191415054A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2295264A1 (en) * | 1974-12-20 | 1976-07-16 | Mitsubishi Motors Corp | DIAPHRAGM AIR PUMP |
-
1914
- 1914-06-23 GB GB191415054D patent/GB191415054A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2295264A1 (en) * | 1974-12-20 | 1976-07-16 | Mitsubishi Motors Corp | DIAPHRAGM AIR PUMP |
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