GB907026A - Improvements in or relating to hydraulic pumps - Google Patents
Improvements in or relating to hydraulic pumpsInfo
- Publication number
- GB907026A GB907026A GB487059A GB487059A GB907026A GB 907026 A GB907026 A GB 907026A GB 487059 A GB487059 A GB 487059A GB 487059 A GB487059 A GB 487059A GB 907026 A GB907026 A GB 907026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- pistons
- line
- pump
- fitted
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/056—Regulating distributors or valves for hydropneumatic systems
-
- 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
- F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/126—Ball valves
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
907,026. Reciprocating pumps. ARMSTRONG PATENTS CO. Ltd. Feb. 1, 1960 [Feb. 12, 1959], No. 4870/59. Class 102 (1). [Also in Group XXXII]. A pump for use in a hydraulic system to operate a displaceable member such as a ram in a vehicular suspension system, comprises a pump body 10, Fig. 4, formed with a reservoir 15, connected if desired by a union 17 to a further reservoir 16, Fig. 1, and parallel pumping bores 12 mounting bucket pistons 60 fitted with bucket valves 68. Rods 62 and a crank-plate 64 connect the pistons to a shaft 20 oscillated by movement of the vehicle suspension spring. The shaft 20 is provided with cams 48, 50 actuating valves 56, 58 fitted respectively in a line 44 connecting the pump delivery line 24 to the ram cylinder and a line 46 connecting the ram cylinder to the reservoir. A hydraulic pressure accumulator 26 comprising an elastic diaphragm 40 is connected to the line 24. To prevent overpressure in the accumulator a pressure relief valve 34 is fitted in a line between the line 24 and the reservoir or alternatively to absorb shock loads in the pump, valves 32 constituting damping valves are fitted in ducts 30 Interconnecting the delivery ends of the pump bores. These latter valves in a practical construction comprise a spring-loaded, hollow valve member 114, Fig. 4 seatable on a plug 106 and a spring-loaded valve member 110 seatable on the valve member 114. In a modified construction, bucket pistons 60 are replaced by pistons 128, Fig. 7 reciprocable in lines 126 fitted with loose-ball bucket valves 138 and loose-ball delivery valves 148. The pistons are operable by a cam 130 fixed to the shaft 20. On movement of the shaft 20 through a lever connected to the vehicle suspension spring, the pump pistons are actuated and at the same time one or other of the valves, 56, 58 is unseated to either raise or lower the ram in dependence upon theattitude of the spring relative to the vehicle frame, in order to compensate changes in load and maintain the vehicle at a desired mean riding height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB487059A GB907026A (en) | 1959-02-12 | 1959-02-12 | Improvements in or relating to hydraulic pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB487059A GB907026A (en) | 1959-02-12 | 1959-02-12 | Improvements in or relating to hydraulic pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB907026A true GB907026A (en) | 1962-09-26 |
Family
ID=9785369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB487059A Expired GB907026A (en) | 1959-02-12 | 1959-02-12 | Improvements in or relating to hydraulic pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB907026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0637690A1 (en) * | 1993-05-14 | 1995-02-08 | Sumitomo Electric Industries, Limited | Plunger pump |
-
1959
- 1959-02-12 GB GB487059A patent/GB907026A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0637690A1 (en) * | 1993-05-14 | 1995-02-08 | Sumitomo Electric Industries, Limited | Plunger pump |
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