GB922849A - Improvements in and relating to control units for air suspension levelling valves - Google Patents
Improvements in and relating to control units for air suspension levelling valvesInfo
- Publication number
- GB922849A GB922849A GB4148160A GB4148160A GB922849A GB 922849 A GB922849 A GB 922849A GB 4148160 A GB4148160 A GB 4148160A GB 4148160 A GB4148160 A GB 4148160A GB 922849 A GB922849 A GB 922849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- air
- diaphragm
- control unit
- shock absorber
- 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
- B60G17/0408—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
922,849. Pneumatic suspension control valves. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 8, 1961 [Dec. 2, 1960], No. 41481/60. Class 108(2) A control unit for an air suspension levelling valve comprises a body 10 containing a valve 21 carried by a diaphragm 20 and a spring loaded disc valve 16 which permits pressurized fluid to flow to the diaphragm 20 during rapid vertical movement of the vehicle whereupon the valve 21 prevents air flow between an air reservoir (not shown) and the air springs (not shown) of the vehicle. As shown, a control unit is screwed into each end of the cylinder 12 of a doubleacting hydraulic shock absorber 13. One control unit has a connection 25 from the air reservoir and a connection 26 leading to a levelling valve (not shown) and the other control unit has a connection 27 from the levelling valve and a connection 28 to the air springs. Increased hydraulic pressure at either end of the cylinder 12 due to spring deflections lifts one of the disc valves 16 and acts on the diaphragm 20 to close the valve 21. Upon release of the increased hydraulic pressure by the shock absorber piston the disc valve 16 closes and a bleed hole 19 therein permits the pressure acting on the diaphragm to escape slowly. Consequently the reservoir will only communicate with the air springs during prolonged spring deflections since at all times during oscillating motion of the shock absorber one of the valves 21 will be closed. The control units may be associated with a vane type shock absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4148160A GB922849A (en) | 1960-12-02 | 1960-12-02 | Improvements in and relating to control units for air suspension levelling valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4148160A GB922849A (en) | 1960-12-02 | 1960-12-02 | Improvements in and relating to control units for air suspension levelling valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB922849A true GB922849A (en) | 1963-04-03 |
Family
ID=10419882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4148160A Expired GB922849A (en) | 1960-12-02 | 1960-12-02 | Improvements in and relating to control units for air suspension levelling valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB922849A (en) |
-
1960
- 1960-12-02 GB GB4148160A patent/GB922849A/en not_active Expired
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