GB571665A - Improvements in variable stroke radial pumps - Google Patents
Improvements in variable stroke radial pumpsInfo
- Publication number
- GB571665A GB571665A GB12934/43A GB1293443A GB571665A GB 571665 A GB571665 A GB 571665A GB 12934/43 A GB12934/43 A GB 12934/43A GB 1293443 A GB1293443 A GB 1293443A GB 571665 A GB571665 A GB 571665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- spring
- eccentricity
- track
- rollers
- 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
- F04B1/0404—Details or component parts
- F04B1/0413—Cams
-
- 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
- F04B1/0404—Details or component parts
- F04B1/0439—Supporting or guiding means for the pistons
-
- 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
- F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
-
- 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
- F04B49/123—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 by changing the eccentricity of one element relative to another element
- F04B49/128—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 by changing the eccentricity of one element relative to another element by changing the eccentricity of the cylinders, e.g. by moving a cylinder block
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
571,665. Radial cylinder pumps. AIRCRAFT HYDRAULIC APPLIANCES, Ltd., and WYLIE, H.N. Aug. 10, 1943, No. 12934. [Class 102 (i)] In a variable stroke radial pump with a track ring of variable eccentricity and a biassed valve shaft, as described in Specification 524,199, the track ring is mounted on means which oppose the forces set up by viscous drag between the rotating cylinder assembly and the track ring and tending to rotate the ring, but which permit substantially rectilinear movement of the ring to change its eccentricity. In the form shown in Fig. 3, a flat portion 35 on the ring 11 bears against a plate 36 through the intermediary of spaced roller bearings 37. The latter are mounted in a cage 38 having a slot 40 engaged by a guiding pin 42 and provided with a spring 39 which presses it against a pin 41 on the ring 11 also engaged in the slot 40. The arrangement is such that the total reaction force R passes between the rollers 37 close to the one remote from the spring 39. Opposite the rollers, the casing 10 is formed with a seating 34 for the ring 11 between stop segments 45, 46. The spring 33 comprises laminµ of different lengths clamped at one end 43 and bearing.on a rod 44. A choice of different sized rods may be made, and they may be positioned adjustably relative to the end 43. Alternatively, a spiral spring may be disposed between the ring 11 and an adjustable abutment on the casing 10. In the form shown in Fig. 4., the ring 11 is supported by diametrically opposite links 50, 53, and is forced to its position of maximum eccentricity by a bending strut 56. The links may be of equal or unequal length, either or both may act in tension or compression, and they may be parallel with on another in the mean position of the ring 11. Specification 524,348, [Group XXII], also is referred to in the Provisional Specification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12934/43A GB571665A (en) | 1943-08-10 | 1943-08-10 | Improvements in variable stroke radial pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12934/43A GB571665A (en) | 1943-08-10 | 1943-08-10 | Improvements in variable stroke radial pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB571665A true GB571665A (en) | 1945-09-04 |
Family
ID=10013812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12934/43A Expired GB571665A (en) | 1943-08-10 | 1943-08-10 | Improvements in variable stroke radial pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB571665A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE942849C (en) * | 1952-10-07 | 1956-05-09 | Wagner & Co Werkzeugmaschinenf | Slide shoe for the pistons of oil hydraulic pumps of the star design |
DE957442C (en) * | 1953-02-26 | 1957-01-31 | Bochumer Eisen Heintzmann | Fluid pump, especially for driving presses or bending machines |
DE960776C (en) * | 1954-04-18 | 1957-03-28 | Eduard Woydt Dr Ing | High pressure pump or motor rotating in a single direction of rotation |
-
1943
- 1943-08-10 GB GB12934/43A patent/GB571665A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE942849C (en) * | 1952-10-07 | 1956-05-09 | Wagner & Co Werkzeugmaschinenf | Slide shoe for the pistons of oil hydraulic pumps of the star design |
DE957442C (en) * | 1953-02-26 | 1957-01-31 | Bochumer Eisen Heintzmann | Fluid pump, especially for driving presses or bending machines |
DE960776C (en) * | 1954-04-18 | 1957-03-28 | Eduard Woydt Dr Ing | High pressure pump or motor rotating in a single direction of rotation |
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