GB869772A - Air spring control valve - Google Patents
Air spring control valveInfo
- Publication number
- GB869772A GB869772A GB15907/59A GB1590759A GB869772A GB 869772 A GB869772 A GB 869772A GB 15907/59 A GB15907/59 A GB 15907/59A GB 1590759 A GB1590759 A GB 1590759A GB 869772 A GB869772 A GB 869772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- conduit
- vehicle
- air
- atmosphere
- 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
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/04—Level control, e.g. controlling quantity of material stored in vessel with auxiliary non-electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/202—Height or leveling valve for air-springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
869,772. Maintaining constant height of road vehicles. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. May 8, 1959 [Oct. 21, 1958], No. 15907/59. Addition to 838,810. Class 108(2). A level-control valve 10 is adapted to maintain a road vehicle at constant height at either of two different selected levels. The valve 10 comprises a combined inlet and exhaust valve element 46 which in the normal position of the vehicle is adapted to seaf jointly on a shoulder 47 of the casing and a seat formed on the end of a member 50 to close a passage 51. The member 50 is formed with a piston 56 slidable in a cylinder 58 which is connected by a conduit 32 with a valve 28. The latter is also connected to atmosphere at, 34, and by a conduit 30 to a conduit 24 leading from the source 22 of compressed air to a connection 26 at the top of the casing 10. As shown in Fig. 1, the valve, 28 is set in accordance with the lower of the two desired riding levels of the vehicle and thus closes the conduit 30 and connects the conduit 32 with atmosphere. Since atmospheric pressure thus exists in cylinder 58, the member 50 is downwardly urged by a spring 80 so that the upper face of a slot 60 formed in the member 50 engages with the upper surface of a cam 62. The latter is adapted to be rotated by a lever 18 on relative movements occurring between the axle 16 and the vehicle frame 14. When the vehicle loading increases above the normal, the member 50 is thus raised and lifts the valve 46 to permit air from the connection 26 to pass through a one way valve 42 past the valve 46 to a connection 12 leading to the air spring 11. When vehicle load decreases, the member 50 is lowered and air from the springs passes via the connection 12 into the passage 51 within the member 50, and thence to atmosphere via a porous plug 53a. When it is desired to maintain the vehicle at the upper of the two riding levels, the valve 28 is set to its second position in which it connects the conduit 32 to the conduit 24 and closes the outlet to atmosphere. Pressure applied in the cylinder 58 thus raises the member 50 so as, to lift the valve 46 and permits air to pass to the spring 11 until the lever 18 is rotated into a position in which the lower face 66 of the cam 62 lowers the member 50 into the position shown in Fig. 3. The vehicle height is then regulated at the new level as described previously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US838810XA | 1957-12-09 | 1957-12-09 | |
| US76863658 US2959426A (en) | 1958-10-21 | 1958-10-21 | Multiple range control valve for air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869772A true GB869772A (en) | 1961-06-07 |
Family
ID=26769845
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33650/58A Expired GB838810A (en) | 1957-12-09 | 1958-10-21 | Height control and leveling valve for air springs |
| GB15907/59A Expired GB869772A (en) | 1957-12-09 | 1959-05-08 | Air spring control valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33650/58A Expired GB838810A (en) | 1957-12-09 | 1958-10-21 | Height control and leveling valve for air springs |
Country Status (3)
| Country | Link |
|---|---|
| DE (2) | DE1112910B (en) |
| FR (1) | FR1215927A (en) |
| GB (2) | GB838810A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2525763A1 (en) * | 1975-06-10 | 1976-12-16 | Brumme Kg Effbe Werk | CONTROL VALVE |
| DE3410560A1 (en) * | 1984-03-22 | 1985-09-26 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Device for the zero point adjustment of a load-dependent level control of a vehicle with pneumatic suspension |
| US5787932A (en) * | 1992-11-10 | 1998-08-04 | Nai Neway, Inc. | Bypass tube for time delay height control valve |
| US5375819A (en) * | 1992-11-10 | 1994-12-27 | Nai Neway, Inc. | Dual in-line height control valve assembly |
| DE102008051206A1 (en) * | 2008-10-14 | 2010-04-15 | Wabco Gmbh | Valve arrangement with a first and a second seat valve and valve device with such a valve arrangement |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1016573B (en) * | 1955-01-12 | 1957-09-26 | Siam | Pneumatic, oil-pneumatic or hydraulic suspension for motor vehicles |
| US2787475A (en) * | 1955-08-30 | 1957-04-02 | Gen Motors Corp | Load controlled valve assembly for vehicle air spring |
-
1958
- 1958-10-21 GB GB33650/58A patent/GB838810A/en not_active Expired
- 1958-11-25 DE DEB51198A patent/DE1112910B/en active Pending
- 1958-11-27 FR FR780209A patent/FR1215927A/en not_active Expired
-
1959
- 1959-05-08 GB GB15907/59A patent/GB869772A/en not_active Expired
- 1959-06-19 DE DEB53650A patent/DE1130714B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1215927A (en) | 1960-04-21 |
| DE1112910B (en) | 1961-08-17 |
| GB838810A (en) | 1960-06-22 |
| DE1130714B (en) | 1962-05-30 |
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