GB400382A - Improvements in controlling devices for hydraulic shock absorbers - Google Patents
Improvements in controlling devices for hydraulic shock absorbersInfo
- Publication number
- GB400382A GB400382A GB22413/32A GB2241332A GB400382A GB 400382 A GB400382 A GB 400382A GB 22413/32 A GB22413/32 A GB 22413/32A GB 2241332 A GB2241332 A GB 2241332A GB 400382 A GB400382 A GB 400382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- piston
- chamber
- spring
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Rotary Pumps (AREA)
Abstract
400,382. Vehicle &c. shock-absorbers. SALENIUS, C. G. T., 44, Birger Jarlsgatan, Stockholm. Aug. 10, 1932, No. 22413. Convention date, Sept. 14, 1931. [Class 108 (iii).] Relates to hydraulic shock-absorbers for use on motor vehicles &c. and of the kind in which an operated member such as a piston or vane moves within a pressure chamber filled with liquid and forces the liquid through an escape opening formed of two relatively movable parts, at least one of which is actuated partly in one direction by a spring and partly in the opposite direction by the liquid pressure in the chamber, the latter movement being against the effort of the spring and increasing the resistance at the escape orifice. According to the invention, the movable valve part is connected to a piston so influenced by the pressure in the chamber that a counter-balancing pressure is obtained which assists the efforts of the spring on the movable part, and thereby allows a lighter spring to be employed. The escape opening may be varied by throttling the same or by increasing the length thereof or by both methods in conjunction. In the construction shown in Fig. 1 the valve 5 actuated by the pressure of the liquid in the chamber P is adapted to throttle the escape opening 2 in the wall 1 against the action of the spring 4, and the counter-balancing pressure is derived from an independent piston 17 connected to the valve 5 by a double-armed pivoted lever 15. In another construction, Fig. 2, the valve 34 is made to act as a differential piston by connecting a space 38 at the rear of the valve spindle 37 to the area 36 of reduced pressure by means of a bore 39 in the valve. Other modifications are described in which the valve is formed integral with a cushioned piston, and in which a bore through the valve connects the pressure side of the valve to a chamber in which the pressure so transmitted reacts on a piston integral with the valve. Fig. 5 shows another arrangement similar to that last described, in which the length of a helical passage 72 formed on the valve 71 is increased with increasing pressure in the chamber P, while in a still further construction, Fig. 7, the valve or piston 94 with bore 93 is adapted to regulate the size of a wedge-shaped opening 91 in the cylinder wall 92, the spring 95 being disposed in the counter-pressure chamber.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE400382X | 1931-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB400382A true GB400382A (en) | 1933-10-26 |
Family
ID=20309424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22413/32A Expired GB400382A (en) | 1931-09-14 | 1932-08-10 | Improvements in controlling devices for hydraulic shock absorbers |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR743696A (en) |
GB (1) | GB400382A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2803313A (en) * | 1954-08-20 | 1957-08-20 | Alexander E Ulmann | Fluid control valve for shock absorbers |
US2914143A (en) * | 1951-01-24 | 1959-11-24 | Nevin S Focht | Shock absorber |
US2941629A (en) * | 1954-12-06 | 1960-06-21 | Rohacs Etienne | Valves |
US4874066A (en) * | 1987-12-04 | 1989-10-17 | S.U.I. Corporation | Variable flow shock absorber and method |
EP1731791A1 (en) * | 2004-03-31 | 2006-12-13 | Kabushiki Kaisha Somic Ishikawa | Rotary damper |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE741272C (en) * | 1940-01-19 | 1943-11-08 | Stabilus Ind Und Handelsgesell | Compensating valve for fluid shock absorbers, especially for motor vehicles |
FR2551160A1 (en) * | 1982-10-13 | 1985-03-01 | Schnitzler Serge | Vibration and impact damper with variable throttling of oil |
-
0
- FR FR743696D patent/FR743696A/fr not_active Expired
-
1932
- 1932-08-10 GB GB22413/32A patent/GB400382A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2914143A (en) * | 1951-01-24 | 1959-11-24 | Nevin S Focht | Shock absorber |
US2803313A (en) * | 1954-08-20 | 1957-08-20 | Alexander E Ulmann | Fluid control valve for shock absorbers |
US2941629A (en) * | 1954-12-06 | 1960-06-21 | Rohacs Etienne | Valves |
US4874066A (en) * | 1987-12-04 | 1989-10-17 | S.U.I. Corporation | Variable flow shock absorber and method |
EP1731791A1 (en) * | 2004-03-31 | 2006-12-13 | Kabushiki Kaisha Somic Ishikawa | Rotary damper |
EP1731791A4 (en) * | 2004-03-31 | 2007-10-17 | Ishikawa Tekko Kk | Rotary damper |
Also Published As
Publication number | Publication date |
---|---|
FR743696A (en) | 1933-04-03 |
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