CA1151685A - Strut damper with base valve and cup retention - Google Patents
Strut damper with base valve and cup retentionInfo
- Publication number
- CA1151685A CA1151685A CA000358056A CA358056A CA1151685A CA 1151685 A CA1151685 A CA 1151685A CA 000358056 A CA000358056 A CA 000358056A CA 358056 A CA358056 A CA 358056A CA 1151685 A CA1151685 A CA 1151685A
- Authority
- CA
- Canada
- Prior art keywords
- cylinder tube
- tube
- reservoir
- base
- base cup
- 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)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Abstract of the Disclosure:
Suspension strut and damper assembly in which the cylinder tube of the hydraulic damper carries a base valve which has arcuately spaced foot pads on the lower surface thereof which seat within the confines of the base cup in a manner so as to limit movement of the cylinder tube relative to the base cup and reservoir tube extending upwardly therefrom.
Suspension strut and damper assembly in which the cylinder tube of the hydraulic damper carries a base valve which has arcuately spaced foot pads on the lower surface thereof which seat within the confines of the base cup in a manner so as to limit movement of the cylinder tube relative to the base cup and reservoir tube extending upwardly therefrom.
Description
~151~;~5 D-~,045 C-3195 STRUT DAMPER WITH BASE
VALVE AND CUP RETENTION
This invention relates to vehicle suspenSiOn struts in which the base valve of a cylinder tube of a damper employed therein i9 provided with arcuately spaced support pads to closely fit the sloped bottom surface and the annular perimeter wall of a base cup to effectively eliminate movement of the cylinder tube relative to the base cup to thereby provide improved retention of the cylinder tube in the base cup.
In this i.nvention, a hydraulic damper or shock absorber is p~ovided with a base valve having a valve body with arcuately spaced and downwardly extending pads formed integrally thereon with lower contact surfaces inclined to match the slope of the inversely coned inner surface of the base cup. These pads also have end surfaces wh.ich engage the inner surface of an annular rim of the base cup. With the cylinder tube ax.ially preloaded within the reservoir tube and with the surface-to-surface engagement described, the pads of base valve are in effect locked in position and the cylinder tube and base valve are fixed relative to the base cup and the attached reservoir tube. Additionally, with the pads engaging the inner surface of the base cup, clearance is provided for fluid flo~ bet~?een the reservoir and the compression chamber of the damper while pro~iding for improved axial and radial support .~
of the base valve and cylinder tube within the strut~
This invention may be advantageously employed in a MacPherson type suspension strut since the pad and base cup construction accommodates high magnitude side loaas that occur in such struts, particularly in those where steering loads are imposed through a steering arm coupled to the reservoir tube.
With this pad and base cup construction, movement of the lower end of the cylinder tube relative to the base cup effectively eliminates relative movement between the lower end of the cylinder tube and the base cup so that shoc~ absorber operation and service life are optimized. Additionally, with this invention, the assembly of a service cartridge within the reservoir tube is simplified since it does not require a predetermined rotational fit as in prior art construction in ~hich protuberances in the base cup fit into corresponding recesses formed in the lower end of the service cartridge.
A feature, object and advantage of this invention is to provide a new and improved strut damper for an automotive suspension having a preloaded cylinder tube with a base valve assembly formed ~ith a plurality of arcuately spaced pads that have bottom and end surfaces that engage corresponding interior surfaces of a reservoir tube supported base valve ~L15~;8~i cup so that movement of the lower end of the cylinder tube with respect to the reservoir tube is effectively eliminated.
Another feature, object and advantage of thls invention is to provide a new and improved suspension strut and damper assembly in 7~hich the base valve of the cylinder tube has foot pads disposed in a triangulated pattern which has first contact surfaces that engage the sloped inner surface of the base cup and second arcuately spaced end contact surfaces which engage the inner wall of the rim of the base cup at points to provide improved retention of the end of the cylinder tube in the base cup under high side load conditions including loads from high steer on the strut damper.
Another feature, object and advantage of this invention is to provide a new and improved strut damper assembly for a vehicle suspension ~.7hich incorporates a rotationally steerable support tube having a cylinder tube preloaded therein in which a piston and rod assembly are operatively mounted and further incorporating a new and improved base valve formed with pads extending therefrom ~.~hich fit ~7ithin the sloped inner surface of a base cup to provide improved retention of the cylinder tube in the base cup.
These and other features, objects and advantages of this invention will be more apparent S~85 from the following detailed description and drawings in which:
Figure 1 is a side view partly in section of a suspension strut and damper assembly ~hich incorporates the new and improvea base cup and cylinder end locking construction of this invention, Figure 2 is an end view taken along lines
VALVE AND CUP RETENTION
This invention relates to vehicle suspenSiOn struts in which the base valve of a cylinder tube of a damper employed therein i9 provided with arcuately spaced support pads to closely fit the sloped bottom surface and the annular perimeter wall of a base cup to effectively eliminate movement of the cylinder tube relative to the base cup to thereby provide improved retention of the cylinder tube in the base cup.
In this i.nvention, a hydraulic damper or shock absorber is p~ovided with a base valve having a valve body with arcuately spaced and downwardly extending pads formed integrally thereon with lower contact surfaces inclined to match the slope of the inversely coned inner surface of the base cup. These pads also have end surfaces wh.ich engage the inner surface of an annular rim of the base cup. With the cylinder tube ax.ially preloaded within the reservoir tube and with the surface-to-surface engagement described, the pads of base valve are in effect locked in position and the cylinder tube and base valve are fixed relative to the base cup and the attached reservoir tube. Additionally, with the pads engaging the inner surface of the base cup, clearance is provided for fluid flo~ bet~?een the reservoir and the compression chamber of the damper while pro~iding for improved axial and radial support .~
of the base valve and cylinder tube within the strut~
This invention may be advantageously employed in a MacPherson type suspension strut since the pad and base cup construction accommodates high magnitude side loaas that occur in such struts, particularly in those where steering loads are imposed through a steering arm coupled to the reservoir tube.
With this pad and base cup construction, movement of the lower end of the cylinder tube relative to the base cup effectively eliminates relative movement between the lower end of the cylinder tube and the base cup so that shoc~ absorber operation and service life are optimized. Additionally, with this invention, the assembly of a service cartridge within the reservoir tube is simplified since it does not require a predetermined rotational fit as in prior art construction in ~hich protuberances in the base cup fit into corresponding recesses formed in the lower end of the service cartridge.
A feature, object and advantage of this invention is to provide a new and improved strut damper for an automotive suspension having a preloaded cylinder tube with a base valve assembly formed ~ith a plurality of arcuately spaced pads that have bottom and end surfaces that engage corresponding interior surfaces of a reservoir tube supported base valve ~L15~;8~i cup so that movement of the lower end of the cylinder tube with respect to the reservoir tube is effectively eliminated.
Another feature, object and advantage of thls invention is to provide a new and improved suspension strut and damper assembly in 7~hich the base valve of the cylinder tube has foot pads disposed in a triangulated pattern which has first contact surfaces that engage the sloped inner surface of the base cup and second arcuately spaced end contact surfaces which engage the inner wall of the rim of the base cup at points to provide improved retention of the end of the cylinder tube in the base cup under high side load conditions including loads from high steer on the strut damper.
Another feature, object and advantage of this invention is to provide a new and improved strut damper assembly for a vehicle suspension ~.7hich incorporates a rotationally steerable support tube having a cylinder tube preloaded therein in which a piston and rod assembly are operatively mounted and further incorporating a new and improved base valve formed with pads extending therefrom ~.~hich fit ~7ithin the sloped inner surface of a base cup to provide improved retention of the cylinder tube in the base cup.
These and other features, objects and advantages of this invention will be more apparent S~85 from the following detailed description and drawings in which:
Figure 1 is a side view partly in section of a suspension strut and damper assembly ~hich incorporates the new and improvea base cup and cylinder end locking construction of this invention, Figure 2 is an end view taken along lines
2-2 of Figure 1 as viewed in the direction of the indicator arrows; and Figure 3 is a side view of the end portion of the strut of Figure 2 showing the base valve assembly therein partly in section and partly ir.
elevation.
Turning now in greater detail to the drawing, there i9 shown in Figure 1 a MacPherson strut 10 for a vehicle suspension comprising rotationally steerable cylindrical reservoir tube 12 having a mounting bracket 14 welded or otherwise secured to the lower end thereof for support of a vehicle road wheel assembly which is not shown. The reservoir tube 12 is closed at its lower end by a base cup 16 having a sloped bottom surface welded theretp. Axially preloaded onto the base cup and ~ithin the reservoir tube is an elongated cylinder tube 18. The cylinder tube 18 has a smaller diameter than the reservoir tube 12 and cooperates therewith to provide a reservoir 20 ~516t~5 which contains a quantity of oil used as a damping medium in this strut. The cylinder tube has a base valve 22 secured in the lower end thereof which controls the transit of oil between the reservoir 20 and a compression chamber 24 formed in the cylinder tube 18 beneath valved piston assembly 26 slidably mounted therein.
The base valve 22 has conventional valving construction such as disclosed in U.S. Patent 4,105,193 issued August 8, 1978 for Shock Absorber and Leveling Unit with Auxiliary Damping Device for Vehicle Suspension. The base valve 22 further has an annular valve body 28 which has three support pads 30 equally pacea in a triangular pattern formed on the underside thereof. These pads terminate in end surfaces 34 which extend upwardly and contact the corresponding upwardly extending annular inner surface 36 of the rim 37 of the base cup 16. In addition to contact by the end surfaces 34, the pads 30 have inclined bottom surfaces 38 that engage the correspon~ingly inclined inner surface 40 of -the base cup 16. With the arcuately spaced end surfaces of the pads 30 engaging the rim wall 37 of the base cup and with bottom surfaces 38 engaging the inner surface 40 of the base cup 16, improved support of the end of the cylinder tube 18 within the base cup 16 is provided. In particular, this support is such that side movement of the cylinder tube 18 relative to the reservoir tube 12 fro~
loads including rotational steering loads imparted to the reservoir and connected cylinder tube is effectively eliminated.
The upper end of the cylinder tube 18 is connected to a cylindrical piston rod guide 42 having an inner bushing 44 slidably receiving piston rod 46 attached at its inner end to piston assembly 26. The piston rod guide 42 is formed with a counter bore 47 in the upper end thereof which receives an annular elastomeric seal 48 which surrounds the piston rod 3Z extending therethrough. Seal cover 50 holds the seal 48 in the counter bore 47 and has inner cylindrical wall 52 sandwiched between the outer wall of piston rod guide 42 and the inner wall of the reservoir tube 12. The reservoir tube 12 is secured to the seal cover by annular weld 53. When the seal cover ',0 is secured in place by weld 53, the cylinder tube .18 is axially loaded so that.the pads 30 firmly engage the inner surface 40 of the base cup 16 and will not move relative to the base cup when steering loads are impressed on the reservoir tube 12. A
bumper plate 54 is weldea to the top of the seal cover ~15i685 50 to contact an elastomeric compression bump stop such as disclosed in U.S. Patent 4,175,771 issued November 27, 1979 to Muzechuck et al for MacPherson Strut. The end of the piston rod 32 is attached to the vehicle through a mounting as d.isclosed in this referenced application. A
collar 58 secured to the piston rod 32 wi.thin the cylinder tube 18 supports an elastomeric bumper 60 which is adapted to engage the lower surface of the piston rod guide 42 to limit the extension of the shock absorber or damper of this strut.
Element 64 represents a portion of a steering arm secured to the outer reservoir tube 12 which is operatively connected to the steering linkage so that the strut and supported wheel may be turned to provide for vehicle steer-ing. Even with large magnitude side loads imposed by suchsteering inputs, the reservoir and cylinder tube are main-tained in their relative positions while the clearances 66 between the base valve body 28 and the base cup 16 provide passage for the transit of oil between the reservoir 20 and compression chamber 24. With this invention, assembly is improved over prior constructions since the service cartridge can be installed in any rotational position relative to the base cup.
While a preferred embodiment of the invention has been shown and described to illustrate the invention, ~1S~68~i other modifications will become apparent to those skilled in the art. Accordingly, the scope of this invention is set forth in the following claims.
elevation.
Turning now in greater detail to the drawing, there i9 shown in Figure 1 a MacPherson strut 10 for a vehicle suspension comprising rotationally steerable cylindrical reservoir tube 12 having a mounting bracket 14 welded or otherwise secured to the lower end thereof for support of a vehicle road wheel assembly which is not shown. The reservoir tube 12 is closed at its lower end by a base cup 16 having a sloped bottom surface welded theretp. Axially preloaded onto the base cup and ~ithin the reservoir tube is an elongated cylinder tube 18. The cylinder tube 18 has a smaller diameter than the reservoir tube 12 and cooperates therewith to provide a reservoir 20 ~516t~5 which contains a quantity of oil used as a damping medium in this strut. The cylinder tube has a base valve 22 secured in the lower end thereof which controls the transit of oil between the reservoir 20 and a compression chamber 24 formed in the cylinder tube 18 beneath valved piston assembly 26 slidably mounted therein.
The base valve 22 has conventional valving construction such as disclosed in U.S. Patent 4,105,193 issued August 8, 1978 for Shock Absorber and Leveling Unit with Auxiliary Damping Device for Vehicle Suspension. The base valve 22 further has an annular valve body 28 which has three support pads 30 equally pacea in a triangular pattern formed on the underside thereof. These pads terminate in end surfaces 34 which extend upwardly and contact the corresponding upwardly extending annular inner surface 36 of the rim 37 of the base cup 16. In addition to contact by the end surfaces 34, the pads 30 have inclined bottom surfaces 38 that engage the correspon~ingly inclined inner surface 40 of -the base cup 16. With the arcuately spaced end surfaces of the pads 30 engaging the rim wall 37 of the base cup and with bottom surfaces 38 engaging the inner surface 40 of the base cup 16, improved support of the end of the cylinder tube 18 within the base cup 16 is provided. In particular, this support is such that side movement of the cylinder tube 18 relative to the reservoir tube 12 fro~
loads including rotational steering loads imparted to the reservoir and connected cylinder tube is effectively eliminated.
The upper end of the cylinder tube 18 is connected to a cylindrical piston rod guide 42 having an inner bushing 44 slidably receiving piston rod 46 attached at its inner end to piston assembly 26. The piston rod guide 42 is formed with a counter bore 47 in the upper end thereof which receives an annular elastomeric seal 48 which surrounds the piston rod 3Z extending therethrough. Seal cover 50 holds the seal 48 in the counter bore 47 and has inner cylindrical wall 52 sandwiched between the outer wall of piston rod guide 42 and the inner wall of the reservoir tube 12. The reservoir tube 12 is secured to the seal cover by annular weld 53. When the seal cover ',0 is secured in place by weld 53, the cylinder tube .18 is axially loaded so that.the pads 30 firmly engage the inner surface 40 of the base cup 16 and will not move relative to the base cup when steering loads are impressed on the reservoir tube 12. A
bumper plate 54 is weldea to the top of the seal cover ~15i685 50 to contact an elastomeric compression bump stop such as disclosed in U.S. Patent 4,175,771 issued November 27, 1979 to Muzechuck et al for MacPherson Strut. The end of the piston rod 32 is attached to the vehicle through a mounting as d.isclosed in this referenced application. A
collar 58 secured to the piston rod 32 wi.thin the cylinder tube 18 supports an elastomeric bumper 60 which is adapted to engage the lower surface of the piston rod guide 42 to limit the extension of the shock absorber or damper of this strut.
Element 64 represents a portion of a steering arm secured to the outer reservoir tube 12 which is operatively connected to the steering linkage so that the strut and supported wheel may be turned to provide for vehicle steer-ing. Even with large magnitude side loads imposed by suchsteering inputs, the reservoir and cylinder tube are main-tained in their relative positions while the clearances 66 between the base valve body 28 and the base cup 16 provide passage for the transit of oil between the reservoir 20 and compression chamber 24. With this invention, assembly is improved over prior constructions since the service cartridge can be installed in any rotational position relative to the base cup.
While a preferred embodiment of the invention has been shown and described to illustrate the invention, ~1S~68~i other modifications will become apparent to those skilled in the art. Accordingly, the scope of this invention is set forth in the following claims.
Claims (3)
1. A suspension strut and damper assembly for a vehicle comprising a cylinder tube having upper and lower ends and having a damping fluid therein, a piston mounted for axial reciprocal movement in said cylinder tube, a piston rod attached to said piston and extending outwardly from the upper end of said cylinder tube, rod guide means closing the upper end of said cylinder tube and having an opening therein for slidably receiving said piston rod, a reservoir tube disposed around said cylinder tube and cooperating therewith to form a fluid reservoir, steering means for turning said reservoir tube for vehicle steering, closure means for the upper end of said assembly fixed to said reservoir tube, base valve means operatively supported on the lower end of said cylinder tube, base cup means having a conical inner surface inclined upwardly at a first predetermined angle and having an annular rim secured to the end of said reservoir tube for supporting said cylinder tube and said base valve means, said rim having an inner annular wall extending upwardly from said conical inner surface at a second predetermined angle greater than said first predetermined angle, said base valve means having a valve body with a plurality of dis-crete arcuately-spaced foot pad means extending down-wardly from the lower surface thereof, each of said foot pad means having a bottom surface for directly contacting the conical inner surface of said base cup means to provide axial support for said cylinder tube and to define a plurality of fluid flow passages therebetween leading between said cylinder tube and said reservoir, each of said foot pads having end wall means inclining upwardly from said bottom surface thereof at said second predetermined angle for directly engaging the inner surface of said annular rim of said base cup means to provide radial support for said cylinder tube to thereby limit side movement of the lower end of said cylinder tube with respect to said reservoir tube.
2. A suspension strut and damper assembly for a vehicle comprising a cylinder tube having a damping fluid therein, a piston mounted for axial reciprocal movement in said cylinder tube, a piston rod attached to said piston and extending outwardly from one end of said cylinder tube, a rod guide for said piston fixed to said one end of said cylinder tube, closure means for said assembly contacting said rod guide for exerting an axial load on said cylinder tube through said rod guide, said closure means having an opening therein for said piston rod, a reservoir tube dis-posed around said cylinder tube and cooperating therewith to form a fluid reservoir, bracket means for mounting a road wheel to the reservoir, a steering arm attached to said reservoir tube for turning said reservoir to steer the vehicle, base valve means operatively supported on the inner end of said cylinder tube, base cup means secured to the end of said reservoir tube for receiving said base valve means, said base cup means having a conical inner surface inclined upwardly at a predetermined angle and having an annular rim with an inner annular wall extending upwardly from said inclined inner wall at a second predetermined angle greater than said first pre-determined angle, said base valve means having a valve body, a plurality of arcuately spaced foot pad means extending downwardly from the lower surface of said valve body, each of said foot pad means having a bottom surface for directly contacting the conical inner surface of said base cup means for axial support of said cylinder tube and to define a plurality of fluid flow passages therebetween leading between said cylinder tube and said reservoir, each of said foot pad means having end wall means extending at a predetermined angle upwardly from said bottom surface thereof for directly engaging the inner annular wall of said rim to provide radial support for said cylinder tube, said foot pad means and said base cup being frictionally engaged by radial and axial loads to an extent such that movement of the lower end of said cylinder tube with respect to said reservoir tube on steering input to said reservoir tube is substantially eliminated.
3. A suspension strut and damper assembly for a vehicle comprising a cylinder tube having a damping fluid therein, a piston mounted for axial reciprocal movement in said cylinder tube, a piston rod attached to said piston and extending outwardly from one end of said cylinder tube, a rod guide for said piston rod closing the upper end of said cylinder tube, closure means for said assembly and cooperating with said rod guide exerting an axial load on said cylinder tube, said closure means having an opening therein for receiving said piston rod, a reservoir tube disposed around said cylinder tube and cooperating therewith to form a reservoir for damping fluid, base valve means operatively supported by the inner end of said cylinder tube, bracket means for connecting a vehicle road wheel to said reservoir tube, steering arm means attached to said reservoir tube for effecting turning of said reser-voir tube to steer the vehicle, base cup means having a peripheral rim secured to the end of said reservoir tube for axially and radially supporting said base valve means, said base valve means having a valve body, a plurality of arcuately-spaced and downwardly extending foot pad means on the lower surface of said valve body, each of said foot pad means having a bottom surface for contacting the in-terior surface of said base cup means to support said base valve means and said cylinder tube thereon while providing a plurality of fluid flow passages therebetween leading between said cylinder tube and said reservoir, each of said pads having discrete side wall means extending at a predetermined angle upwardly from the bottom surface thereof for directly engaging the inner wall of the rim of said base cup to provide radial support for said cylinder tube to thereby limit side movement of the lower end of said cylinder tube with respect to said reservoir tube in response to steering loads applied to said reservoir tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11021280A | 1980-01-07 | 1980-01-07 | |
| US110,212 | 1980-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1151685A true CA1151685A (en) | 1983-08-09 |
Family
ID=22331806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000358056A Expired CA1151685A (en) | 1980-01-07 | 1980-08-12 | Strut damper with base valve and cup retention |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS56103604A (en) |
| CA (1) | CA1151685A (en) |
| DE (1) | DE3100337A1 (en) |
| GB (1) | GB2066923B (en) |
| IT (1) | IT1170605B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992585A (en) | 1998-03-19 | 1999-11-30 | Tenneco Automotive Inc. | Acceleration sensitive damping for automotive dampers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3321051A (en) * | 1966-06-24 | 1967-05-23 | Oldberg Mfg Company | Shock absorber |
| CH453192A (en) * | 1967-04-10 | 1968-06-14 | Algenthia Ag Ges Fuer Entwickl | Cuboid container |
| US3757910A (en) * | 1971-07-29 | 1973-09-11 | Monroe Auto Equipment Co | Shock absorber and compression valve assembly |
-
1980
- 1980-08-12 CA CA000358056A patent/CA1151685A/en not_active Expired
- 1980-12-22 GB GB8040929A patent/GB2066923B/en not_active Expired
-
1981
- 1981-01-02 DE DE19813100337 patent/DE3100337A1/en not_active Ceased
- 1981-01-06 IT IT47515/81A patent/IT1170605B/en active
- 1981-01-07 JP JP52981A patent/JPS56103604A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT8147515A0 (en) | 1981-01-06 |
| GB2066923B (en) | 1983-08-03 |
| GB2066923A (en) | 1981-07-15 |
| DE3100337A1 (en) | 1982-02-18 |
| JPS56103604A (en) | 1981-08-18 |
| IT1170605B (en) | 1987-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5009401A (en) | Air spring suspension system with dual path isolation | |
| US6443436B1 (en) | Air spring assembly on shock absorber with combined seal | |
| EP0253261B1 (en) | Air spring suspension system | |
| US5810335A (en) | Height adjusting shock absorber strut for a motor vehicle | |
| US5363945A (en) | Control valve for shock absorbers | |
| EP0249369B1 (en) | Vehicle suspension strut assembly including an upper mount | |
| US4633983A (en) | Strut damper with base valve and cup retention | |
| US4747587A (en) | Low profile suspension strut | |
| US5078370A (en) | Upper mount for suspension strut | |
| JPS63159119A (en) | Suspension system and fluid cylinder device | |
| US5667041A (en) | Suspension strut with hydraulic stop | |
| US3062331A (en) | Shock absorber | |
| PL71364B1 (en) | ||
| US4955460A (en) | Control valve for shock absorbers | |
| US4162091A (en) | Wheel suspension apparatus for a vehicle | |
| US4747475A (en) | Suspension wear compensating shock absorber | |
| US4452436A (en) | Single tube strut shock absorber | |
| US5211268A (en) | Control valve for shock absorbers | |
| US4690430A (en) | Air suspension | |
| US3954256A (en) | Suspension system for automotive vehicles and the like | |
| CA1151685A (en) | Strut damper with base valve and cup retention | |
| EP0041342A2 (en) | Improvements in suspension struts for vehicles | |
| US3979134A (en) | Vehicle suspension system | |
| US4635766A (en) | Automotive suspension strut with increased stroke | |
| JP2001503702A (en) | Shock absorber for vehicle wheel suspension |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |