GB1232271A - - Google Patents
Info
- Publication number
- GB1232271A GB1232271A GB1232271DA GB1232271A GB 1232271 A GB1232271 A GB 1232271A GB 1232271D A GB1232271D A GB 1232271DA GB 1232271 A GB1232271 A GB 1232271A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- liquid
- diaphragms
- line
- elements
- 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
- F04B49/16—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
1,232,271. Reciprocating piston pumps. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY KONSTRUKTORSKY I TEKHNOLOGICHESKY INSTITUT GIDROMASHINOSTROENIA. May 3, 1968, No. 21099/68. Heading F1A. A device for varying the volume of discharge of a reciprocating piston pump comprises a regulating chamber 3, Fig. 1 having a pair of spaced diaphragms 4, 5 defining an auxiliary variable volume chamber 9 therebetween connected by a line 15 to control means 10 for varying the amount of liquid in chamber 9, the device also includes apertured abutment elements 6, 7 which with diaphragms 4, 5 form chambers 8, 11 and abutments 6, 7 when contacted by diaphragms 4, 5 during the suction and pressure strokes respectively prevent flow of liquid through the elements 6, 7 and thus result in flow past the inlet and outlet valves in suction and delivery lines 25, 27. The control means 10 comprises a calibrated vessel 12 containing liquid subjected to gas pressure at 11 and having stop valves 20, 21. Chamber 11 is connected to a pressure source which may be enclosed compressed gas or the chamber is connected by a line to either the suction or delivery line 25, 27. When pumping corrosive liquids the chamber 8, Fig. 3 is bounded by a diaphragm 67 and contains a constant volume of neutral liquid. In a further modification the thrust elements 36, 37, Fig. 10 are mounted in the auxiliary chamber 9 which is connected by channels 41 to a liquid-filled chamber 40 the capacity of which is controlled by a diaphragm 42 positioned by a compressed air operated piston 74 and a set screw 71. The maximum capacity of the pump is reached when both diaphragms 4, 5 simultaneously abut elements 36, 37. In a further modification two out of phase pistons 2, 2<SP>11</SP>, Fig. 7 driven from a common shaft the auxiliary chamber 9 is formed by connecting together by line 15 the liquid-filled chambers on that side of diaphragms 4, 5, remote from abutments 6, 7, line 15 also being connected through shut-off valves 20, 21 to reservoir and a pump 68.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2109968 | 1968-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1232271A true GB1232271A (en) | 1971-05-19 |
Family
ID=10157214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1232271D Expired GB1232271A (en) | 1968-05-03 | 1968-05-03 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1232271A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160595A (en) * | 1984-06-19 | 1985-12-24 | Zahnradfabrik Friedrichshafen | Reciprocating pump |
| US4594059A (en) * | 1981-11-28 | 1986-06-10 | Erich Becker | Diaphragm pump |
| US4775299A (en) * | 1986-08-29 | 1988-10-04 | Cooper Industries, Inc. | Variable clearance pocket piston positioning device |
-
1968
- 1968-05-03 GB GB1232271D patent/GB1232271A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4594059A (en) * | 1981-11-28 | 1986-06-10 | Erich Becker | Diaphragm pump |
| GB2160595A (en) * | 1984-06-19 | 1985-12-24 | Zahnradfabrik Friedrichshafen | Reciprocating pump |
| US4775299A (en) * | 1986-08-29 | 1988-10-04 | Cooper Industries, Inc. | Variable clearance pocket piston positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |