GB1231997A - - Google Patents
Info
- Publication number
- GB1231997A GB1231997A GB1231997DA GB1231997A GB 1231997 A GB1231997 A GB 1231997A GB 1231997D A GB1231997D A GB 1231997DA GB 1231997 A GB1231997 A GB 1231997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pistons
- roller
- cams
- valves
- 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
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
- 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
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
- F04B1/0536—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units
- F04B1/0538—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units located side-by-side
-
- 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
- F04B49/16—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 adjusting the capacity of dead spaces of working chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
1,231,997. Reciprocating pumps. SOC. NATIONALE D'ETUDE ETDE CONSTRUCTION DE MOTEURS D'AVIATION. Oct. 15, 1969 [Nov. 13, 1968], No. 50671/69. Heading F1A. A radial cylinder pump comprises two sets of bucket pistons 2a, 2b reciprocated by cams 1a, 1b on a common drive shaft 7, the cylinders of pistons 180 degrees out of phase being connected by passages 8 with slide valves 10 controlled by an angled roller 13 axially slidable on shaft 7 between positions corresponding to maximum and minimum pump output. In the maximum output position of roller 13, as shown, valves 10 are held closed. When the roller is moved to the left, by pump delivery pressure acting on piston 16 against spring 17, valve 10 engage portion 15 of the drive shaft during part or all of each shaft revolution, depending on the roller setting, and open passages 8, so that pistons 2a on their delivery strokes discharge into the cylinders of pistons 2b on their suction strokes. Value 19 is subjected to the pump delivery pressure, and connects piston 16 to delivery pressure or suction pressure to decrease or increase, respectively, the pump output. In Fig.2 2 (not shown), cams 1a and 1b are located adjacent one another, and valves 10 are located to one side of the cam and fiction assemblies. In this embodiment, the cams are offset by a angle depending on the number of pistons in each set, and the slide valves are disposed with their axes bisecting the angle between the axes of their associated pistons.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR173428 | 1968-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1231997A true GB1231997A (en) | 1971-05-12 |
Family
ID=8656761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1231997D Expired GB1231997A (en) | 1968-11-13 | 1969-10-15 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1950371A1 (en) |
| FR (1) | FR1595692A (en) |
| GB (1) | GB1231997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930434A (en) * | 1973-10-30 | 1976-01-06 | The Toro Company | Hydraulic controller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006017301B4 (en) * | 2006-04-12 | 2008-03-06 | Siemens Ag | pump |
| DE102012110342B4 (en) | 2012-10-29 | 2016-03-03 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Rotor body for a comminution device, in particular a drum chipper for the comminution of wood or the like |
-
1968
- 1968-11-13 FR FR1595692D patent/FR1595692A/fr not_active Expired
-
1969
- 1969-10-06 DE DE19691950371 patent/DE1950371A1/en active Pending
- 1969-10-15 GB GB1231997D patent/GB1231997A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930434A (en) * | 1973-10-30 | 1976-01-06 | The Toro Company | Hydraulic controller |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1595692A (en) | 1970-06-15 |
| DE1950371A1 (en) | 1970-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |