GB587684A - Improvements in or relating to rotary pumps - Google Patents
Improvements in or relating to rotary pumpsInfo
- Publication number
- GB587684A GB587684A GB1374044A GB1374044A GB587684A GB 587684 A GB587684 A GB 587684A GB 1374044 A GB1374044 A GB 1374044A GB 1374044 A GB1374044 A GB 1374044A GB 587684 A GB587684 A GB 587684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- wall
- pressure
- delivery
- 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
- F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face
-
- 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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
Abstract
587,684. Rotary pumps. STEVENS, A. H. (Eaton Manufacturing Co.). July 18, 1944, No. 13740. [Class 110 (ii)] In a pump of the n and n+1 lobe type, the pressure in the delivery port 40 is kept approximately constant through a spring-pressed wall 54 moving axially with increase in delivery pressure and thus opening up a byepass to the suction port 38. To prevent tilting of the wall, due to uneven distribution of pressure in the pump, the spring 56 is eccentrically positioned with respect to the driving shaft 32. Outer and inner rotors 22, 20 mesh together, a snap ring 35 preventing axial movement of 20 relatively to the shaft 32. The wall 54 which may be of a light metal or alloy such as aluminium or magnesium, is prevented from rotating by pin-and-socket connection with the housing wall 30. Ports 38, 40 are of segmental shape. A wear ring 36. may be provided around the outer rotor. Liquid leaking along the shaft 32 drains through a duct 87 to the suction port. This liquid lubricates the bearings 33. In a second arrangement, Fig. 7, liquid passing from an inlet 96 to the suction port 104 is led through a filter 102, passes through the pump to a discharge port 48a. A port 38a is connected to the suction, and, when the wall 54a, together with the outer rotor 22a, move axially under delivery pressure, the port 38a communicates with the delivery 48a. U.S.A. Specification 1,682,563 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1374044A GB587684A (en) | 1944-07-18 | 1944-07-18 | Improvements in or relating to rotary pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1374044A GB587684A (en) | 1944-07-18 | 1944-07-18 | Improvements in or relating to rotary pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB587684A true GB587684A (en) | 1947-05-02 |
Family
ID=10028507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1374044A Expired GB587684A (en) | 1944-07-18 | 1944-07-18 | Improvements in or relating to rotary pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB587684A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671409A (en) * | 1950-08-01 | 1954-03-09 | Tokheim Corp | Direct-drive gasoline dispensing pump |
| US2915982A (en) * | 1955-02-14 | 1959-12-08 | Crandall Loid | Rotary pump |
| EP0848165A2 (en) * | 1996-12-12 | 1998-06-17 | Otto Eckerle | Internal gear pump |
-
1944
- 1944-07-18 GB GB1374044A patent/GB587684A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671409A (en) * | 1950-08-01 | 1954-03-09 | Tokheim Corp | Direct-drive gasoline dispensing pump |
| US2915982A (en) * | 1955-02-14 | 1959-12-08 | Crandall Loid | Rotary pump |
| EP0848165A2 (en) * | 1996-12-12 | 1998-06-17 | Otto Eckerle | Internal gear pump |
| EP0848165A3 (en) * | 1996-12-12 | 1999-08-18 | Otto Eckerle | Internal gear pump |
| US6074189A (en) * | 1996-12-12 | 2000-06-13 | Eckerle; Otto | Filling member-less internal-gear machine |
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