GB913984A - Improvements relating to pneumatic vehicle suspensions - Google Patents
Improvements relating to pneumatic vehicle suspensionsInfo
- Publication number
- GB913984A GB913984A GB1279358A GB1279358A GB913984A GB 913984 A GB913984 A GB 913984A GB 1279358 A GB1279358 A GB 1279358A GB 1279358 A GB1279358 A GB 1279358A GB 913984 A GB913984 A GB 913984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- orifices
- valve
- gas
- diaphragm
- vehicle
- 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
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
-
- 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
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
913,984. Fluid-pressure servomotor-control systems. DOWTY ROTOL Ltd. April 22, 1959 [April 22, 1958], No. 12793/58. Class 135. [Also in Group XXXII] In a pneumatic suspension system for vehicles in which air or other gas is supplied to or exhausted from a pneumatic spring of telescopic construction or a flexible bag to maintain the vehicle at a predetermined height above the road wheels the pneumatic spring is connected at 22 to a valve which is mounted on the frame of the vehicle and carries a shaft 46 on which is mounted an arm linked to the road wheels whereby any deviation of height from the predetermined value causes turning of the shaft 46 to operate a cam (not shown) which deflects a flexible strip 42 relative to a pair of orifices 38, 39 to vary the pressures on either side of a flexible diaphragm 26, or a piston, bellows, &c., which actuates ball valves 18, 19, the valve 18 controlling the supply of gas under pressure from an inlet 16 to the connection 22 and the valve 19 controlling the escape of gas from the connection 22 to an outlet 23. The supply of gas to the orifices 38, 39 is through restrictions (not shown) and the connections to the two sides of the diaphragm 26 are taken from points between the restrictions and the orifices. The relationship between the sizes of the orifices and the volume on either side of the diaphragm 26 is such that the system will not respond to oscillations at a frequency corresponding to or higher than that of natural oscillation of the vehicle on the suspension. If necessary, additional volume chambers may be connected to the spaces at either side of the diaphragm 26. To cause the system to operate only at a certain time, such as when the vehicle brakes are applied or when passenger doors are opened, the conduit supplying gas under pressure to the orifices 38, 39 may contain a valve which is opened only when it is required that the system be operative. Upstream of this valve is provided a reservoir into which gas is supplied through a restriction whereby the levelling operation can take place for a limited period only depending upon the capacity of the reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1279358A GB913984A (en) | 1958-04-22 | 1958-04-22 | Improvements relating to pneumatic vehicle suspensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1279358A GB913984A (en) | 1958-04-22 | 1958-04-22 | Improvements relating to pneumatic vehicle suspensions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913984A true GB913984A (en) | 1962-12-28 |
Family
ID=10011248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1279358A Expired GB913984A (en) | 1958-04-22 | 1958-04-22 | Improvements relating to pneumatic vehicle suspensions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB913984A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343391A2 (en) * | 1988-05-24 | 1989-11-29 | Robert Bosch Gmbh | Pilot valve for a spring element of a vehicle |
-
1958
- 1958-04-22 GB GB1279358A patent/GB913984A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0343391A2 (en) * | 1988-05-24 | 1989-11-29 | Robert Bosch Gmbh | Pilot valve for a spring element of a vehicle |
| EP0343391A3 (en) * | 1988-05-24 | 1992-05-06 | Robert Bosch Gmbh | Pilot valve for a spring element of a vehicle |
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