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1. WO1989009892 - SHOCK ABSORBER

Publication Number WO/1989/009892
Publication Date 19.10.1989
International Application No. PCT/NL1989/000017
International Filing Date 03.04.1989
Chapter 2 Demand Filed 17.11.1989
IPC
F16F 9/46 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
32Details
44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
46allowing control from a distance
CPC
B60G 2401/23
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
2401Indexing codes relating to the type of sensors based on the principle of their operation
23Memory materials
F16F 2224/0258
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
2224Materials; Material properties
02solids
0258Shape-memory metals, e.g. Ni-Ti alloys
F16F 9/46
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
32Details
44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
46allowing control from a distance ; , i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
Applicants
  • KONI B.V. [NL]/[NL] (AllExceptUS)
  • VAN ZEGGEREN, Wilhelm, Aart [NL]/[NL] (UsOnly)
Inventors
  • VAN ZEGGEREN, Wilhelm, Aart
Agents
  • DE BRUIJN, Leendert, C.
Priority Data
880094512.04.1988NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SHOCK ABSORBER
(FR) AMORTISSEUR DE CHOCS
Abstract
(EN)
Shock absorber, comprising a cylinder (1) with damping fluid, a piston rod (2) which is displaceable in the cylinder (1) having a piston (3) attached thereto and which bounds a central aperture (8) running in the axial direction of the cylinder (1) and being shut off at the end away from the piston rod (2). The piston (2) being provided with at least two duct systems having different damping characteristics, so that damping fluid can flow to spaces (17, 18) in the cylinder (1) on either side of the piston (3). Said duct systems connect by means of an aperture or group of apertures (9, 10) to the central aperture (8) bounded by the piston (3). For the purpose of controlling the fluid flow through the central aperture (8) by opening or closing off one or more of the apertures or groups of apertures (9, 10) as desired, said shock absorber being provided with at least one sleeve-type body (6) being displaceable in axial direction of the central aperture (8) through the activation of at least one element (4, 5) of memory metal and, in opposite direction by at least one further element (14), such as a compression spring. For locking the at least one body (6) in a particular position, the central aperture (8) being provided with axially displaced slots (35, 36) containing a loop-type element (37, 38) of memory metal engaging in at least one corresponding slot (39) in said at least one body (6).
(FR)
L'amortisseur de chocs décrit comprend un cylindre (1) rempli d'un fluide amortisseur, une tige de piston (2) qui est mobile dans le cylindre (1) auquel est fixé un piston (3) et qui délimite une ouverture centrale (8) s'étendant dans la direction axiale du cylindre (1) et obturée à l'extrémité à distance de la tige de piston (2). Le piston (2) est pourvu d'au moins deux systèmes de conduits ayant différentes caractéristiques d'amortissement, de sorte que le fluide amortisseur peut s'écouler dans des espaces (17, 18) ménagés dans le cylindre (1) de part et d'autre du piston (3). Les systèmes de conduits sont reliés au moyen d'une ouverture ou d'un groupe d'ouvertures (9, 10) à l'ouverture centrale (8) délimitée par le piston (3). Pour permettre la régulation de l'écoulement de fluide à travers l'ouverture centrale (8) par ouverture ou fermeture d'une ou de plusieurs des ouvertures ou du groupe d'ouvertures (9, 10) selon les besoins, ledit amortisseur de chocs sest pourvu d'au moins un corps en forme de manchon (6) pouvant être mis en mouvement dans la direction axiale de l'ouverture centrale (8) par activation d'au moins un élément (4, 5) en alliage à mémoire et dans la direction opposée, par au moins un autre élément (14) tel qu'un ressort de compression. Pour immobiliser ledit corps (6) dans une position particulière, on prévoit dans l'ouverture centrale (8) des fentes disposées axialement (35, 36), qui contiennent un élément en forme de boucle (37, 38) en alliage à mémoire s'engageant dans au moins une fente correspondante (39) ménagée dans au moins un desdits corps (6).
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