GB641251A - Improvements in hydraulic shock absorbers for the suspension of vehicles - Google Patents
Improvements in hydraulic shock absorbers for the suspension of vehiclesInfo
- Publication number
- GB641251A GB641251A GB18912/47A GB1891247A GB641251A GB 641251 A GB641251 A GB 641251A GB 18912/47 A GB18912/47 A GB 18912/47A GB 1891247 A GB1891247 A GB 1891247A GB 641251 A GB641251 A GB 641251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- passage
- cylinder
- escape
- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
- F16F9/26—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger with two cylinders in line and with the two pistons or plungers connected together
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
641,251. Hydraulic shock absorbers. HELBIG, M. July 16, 1947, No. 18912. Addition to 627,508. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 6, 1947] [Class 108(iii)] The shock absorber claimed in the parent Specification is modified by the seat for each escape valve being formed at the end of an axially-extending cylindrical sleeve which is fixed in the piston and on which the associated admission valve is arranged to slide, the sleeve also serving as a guide for one end of the stem of the escape valve the other end of the stem being formed with a piston for a hydraulic servo-motor controlling the tension of the loading spring of the escape valve. As shown, each end of the piston has lightly loaded escape valves 24, 25 controlling flow on recoil to the respective cylinder spaces 9, 10 via ports (not shown) connected with a reservoir 11 and valve chambers 13, 16. Flow from the spaces 9, 10 to the reservoir on compression takes place through respective escape valves 12, 15 which are loaded by springs 22, 23. The abutment of the spring 22 at its end remote from the valve is formed by a plunger 20 carried by a stem 52 on which the valve 12 is slidable. The plunger 20 is slidably mounted in a recess 36 in the piston which is connected by a passage 62 with the space 9. A restriction is formed in the passage 62 by a screw 70 adjustable by means of a screwdriver inserted through a respective aperture 68 in the shock absorber casing. The other end of the stem 52 is slidable in a plug 78 mounted in the cylinder. A member 46 having grooves 29, 30 adjacent each cylinder chamber 9, 10 has limited sliding movement relative to the cylinder and is disposed in an axial groove formed in the periphery of the cylinder. The ends of the cylinder are closed by members 72 73 which are formed with recesses within which the respective ends of the member 46 slides with clearance. Passages 60, 61 are formed in the wall at each end of the piston and connect the respective valve chambers 13, 16 with the cylinder chambers 9, 10 via the respective groove 29 or 30, when the piston is substantially in its central position. Operation. On movement to the right from a central position liquid at first passes freely from the right-hand cylinder chamber 10 via groove 30, passage 61, a passage (not shown) connecting the space 16 with the reservoir space 11, and valve 24 to the left-hand cylinder chamber 9. Further movement of the piston isolates the groove 30 from the chamber 10 and pressure transmitted through the passage 63 acts on the piston 21 to progressively load the valve spring 23 of the escape valve 15. On movement to the left, liquid cannot escape from the chamber 9 via the groove 29 since the passage 60 is closed by the member 46. Damping due to flow through the escape valve 12 is progressively increased due to pressure acting through the passage 62, but rapidly decreases to zero near the central position when the passage 60 registers with the groove 29.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR627508X | 1946-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB641251A true GB641251A (en) | 1950-08-09 |
Family
ID=8989071
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26958/46A Expired GB627508A (en) | 1946-04-09 | 1946-09-07 | Recoiling damper for improving the suspension of vehicles |
GB18912/47A Expired GB641251A (en) | 1946-04-09 | 1947-07-16 | Improvements in hydraulic shock absorbers for the suspension of vehicles |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26958/46A Expired GB627508A (en) | 1946-04-09 | 1946-09-07 | Recoiling damper for improving the suspension of vehicles |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE474264A (en) |
FR (3) | FR1001288A (en) |
GB (2) | GB627508A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672955A (en) * | 1951-08-17 | 1954-03-23 | Siam | Hydraulic vibration damper |
GB2164723A (en) * | 1984-09-22 | 1986-03-26 | Boge Gmbh | Adjustable hydraulic dampers and damping valves therefor |
CN103953677A (en) * | 2014-04-14 | 2014-07-30 | 山东科技大学 | Driven anti-collision buffering device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE531830C2 (en) * | 2006-11-24 | 2009-08-18 | Oehlins Racing Ab | Hydraulic double acting damper |
-
1946
- 1946-04-06 FR FR1001288D patent/FR1001288A/en not_active Expired
- 1946-09-07 GB GB26958/46A patent/GB627508A/en not_active Expired
-
1947
- 1947-05-05 FR FR56494D patent/FR56494E/en not_active Expired
- 1947-07-02 BE BE474264D patent/BE474264A/xx unknown
- 1947-07-16 GB GB18912/47A patent/GB641251A/en not_active Expired
-
1950
- 1950-05-03 FR FR62408D patent/FR62408E/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672955A (en) * | 1951-08-17 | 1954-03-23 | Siam | Hydraulic vibration damper |
GB2164723A (en) * | 1984-09-22 | 1986-03-26 | Boge Gmbh | Adjustable hydraulic dampers and damping valves therefor |
CN103953677A (en) * | 2014-04-14 | 2014-07-30 | 山东科技大学 | Driven anti-collision buffering device |
CN103953677B (en) * | 2014-04-14 | 2015-11-25 | 山东科技大学 | A kind of passive buffer |
Also Published As
Publication number | Publication date |
---|---|
GB627508A (en) | 1949-08-10 |
BE474264A (en) | 1947-08-30 |
FR62408E (en) | 1955-06-14 |
FR1001288A (en) | 1952-02-21 |
FR56494E (en) | 1952-09-25 |
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