GB1411218A - Hydraulic stops for shock absorbers - Google Patents
Hydraulic stops for shock absorbersInfo
- Publication number
- GB1411218A GB1411218A GB4466871A GB4466871A GB1411218A GB 1411218 A GB1411218 A GB 1411218A GB 4466871 A GB4466871 A GB 4466871A GB 4466871 A GB4466871 A GB 4466871A GB 1411218 A GB1411218 A GB 1411218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- passage
- valve element
- opening
- rod
- 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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
-
- 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
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1411218 Shock absorbers with hydraulic end stops JONAS WOODHEAD Ltd 22 Dec 1972 [24 Sept 1971] 44668/71 Heading F2S The terminal portion of the extension stroke of a telescopic hydraulic shock absorber is damped. The shock absorber has two passages extending from the annular chamber above the piston to the chamber below the piston, the first passage 11, 14, 15, 18, 19 extending from an opening 13 in the piston-rod 3, through the piston-rod to the chamber below the piston, and containing a valve element 20; and the second passage 27, 28, 26, 15, 18, 19 extending from an opening 29 in the annular chamber below the first passage opening 13, and containing a valve 30 which opens only after the opening 13 in the piston-rod 3 passes into the piston-rod guide 4. On compression (bump) movements, a valve element 9 in the piston opens to allow flow from below to above the piston. On extension (rebound) movements, when the piston is in the central region of the cylinder, liquid flows from above to below the piston through the first passage 11 and past the opened valve element 20. At the limit of extension movement the first passage opening 13 is covered by the piston-rod guide 4 (as shown) and so pressure above the piston builds up, until it opens the second passage valve element 30 and then the main valve element 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4466871A GB1411218A (en) | 1971-09-24 | 1971-09-24 | Hydraulic stops for shock absorbers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4466871A GB1411218A (en) | 1971-09-24 | 1971-09-24 | Hydraulic stops for shock absorbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1411218A true GB1411218A (en) | 1975-10-22 |
Family
ID=10434277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4466871A Expired GB1411218A (en) | 1971-09-24 | 1971-09-24 | Hydraulic stops for shock absorbers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1411218A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2394717A1 (en) * | 1977-06-13 | 1979-01-12 | Monroe Belgium Nv | SHOCK ABSORBER PISTON |
| GB2124328A (en) * | 1982-07-27 | 1984-02-15 | Boge Gmbh | Hydraulic damper valves |
| GB2150261A (en) * | 1983-11-24 | 1985-06-26 | Stabilus Gmbh | Gas spring, or spring biased hydraulic unit, with resistance to initial contraction |
| US4561641A (en) * | 1978-09-18 | 1985-12-31 | Clark Equipment Company | Off-highway vehicle ride strut and method |
| US5195914A (en) * | 1991-02-25 | 1993-03-23 | Outboard Marine Corporation | Two-stage tilt cylinder mechanism for marine propulsion stern bracket assembly |
| EP0882907A1 (en) * | 1997-06-05 | 1998-12-09 | Donerre Amortisseur | Oil damper |
-
1971
- 1971-09-24 GB GB4466871A patent/GB1411218A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2394717A1 (en) * | 1977-06-13 | 1979-01-12 | Monroe Belgium Nv | SHOCK ABSORBER PISTON |
| US4561641A (en) * | 1978-09-18 | 1985-12-31 | Clark Equipment Company | Off-highway vehicle ride strut and method |
| GB2124328A (en) * | 1982-07-27 | 1984-02-15 | Boge Gmbh | Hydraulic damper valves |
| GB2150261A (en) * | 1983-11-24 | 1985-06-26 | Stabilus Gmbh | Gas spring, or spring biased hydraulic unit, with resistance to initial contraction |
| US4650165A (en) * | 1983-11-24 | 1987-03-17 | Stabilus Gmbh | Gas spring |
| AU574174B2 (en) * | 1983-11-24 | 1988-06-30 | Stabilus Gmbh | Gas spring |
| US5195914A (en) * | 1991-02-25 | 1993-03-23 | Outboard Marine Corporation | Two-stage tilt cylinder mechanism for marine propulsion stern bracket assembly |
| EP0882907A1 (en) * | 1997-06-05 | 1998-12-09 | Donerre Amortisseur | Oil damper |
| FR2764353A1 (en) * | 1997-06-05 | 1998-12-11 | Donerre Amortisseur | OIL SHOCK ABSORBER |
| US6286641B1 (en) | 1997-06-05 | 2001-09-11 | Donerre Amortisseur | Oil brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |