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1. WO2020193882 - SHOCK ABSORBER WITH A SELF-ADAPTABLE END STOP EQUIPPED WITH BORES IN THE ROD

Publication Number WO/2020/193882
Publication Date 01.10.2020
International Application No. PCT/FR2020/050222
International Filing Date 10.02.2020
IPC
F16F 9/49 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
48Arrangements for providing different damping effects at different parts of the stroke
49Stops limiting fluid passage, e.g. hydraulic stops
F16F 9/48 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
48Arrangements for providing different damping effects at different parts of the stroke
F16F 9/512 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
50Special means providing automatic damping adjustment
512Means responsive to load action on the damper or fluid pressure in the damper
F16F 9/34 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
34Special valve constructions; Shape or construction of throttling passages
CPC
F16F 9/3405
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
34Special valve constructions
3405Throttling passages in or on piston body, e.g. slots
F16F 9/48
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
48Arrangements for providing different damping effects at different parts of the stroke
F16F 9/49
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
48Arrangements for providing different damping effects at different parts of the stroke
49Stops limiting fluid passage, e.g. hydraulic stops ; or elastomeric elements inside the cylinder which contribute to changes in fluid damping
F16F 9/5123
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
50Special means providing automatic damping adjustment, ; i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs
512Means responsive to load action, ; i.e. static load; on the damper or ; dynamic; fluid pressure ; changes; in the damper, ; e.g. due to changes in velocity
5123responsive to the static or steady-state load on the damper
Applicants
  • PSA AUTOMOBILES SA [FR]/[FR]
Inventors
  • CAVAREC, Alan
  • RIGUEL, Frederic
  • MONTEIL, Christophe
  • ALLEGRE, Jean Marc
  • BONTRON, Francis
Agents
  • MOMBELLI, Philippe
Priority Data
190298822.03.2019FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SHOCK ABSORBER WITH A SELF-ADAPTABLE END STOP EQUIPPED WITH BORES IN THE ROD
(FR) AMORTISSEUR AVEC BUTEE DE FIN DE COURSE AUTO-ADAPTABLE EQUIPEE DE PERÇAGES DANS LA TIGE
Abstract
(EN)
Disclosed is a hydraulic shock absorber comprising a shock absorber piston (6) supporting, in the front, a rod (10) which comprises a stop piston (12) penetrating into an end stop tube (14), and which further comprises, on the front face of the stop piston (12), a first bore (20) comprising an outlet at the rear of the stop piston (12), on the side of the stop piston (12), a second bore (22) comprising an outlet at the rear of the stop piston (12), the shock absorber further comprising a sliding plug (30) which is equipped with a timing chamber (26) and which, in a front position, closes at least one outlet of the bores (20, 22) and, in a rear position, connects said outlets, the plug (30) being located between a front restoring spring (44) and a rear restoring spring (46) resting on the shock absorber piston (6).
(FR)
Amortisseur hydraulique comportant un piston d'amortisseur (6) supportant vers l'avant une tige (10) comprenant un piston de butée (12) rentrant dans un tube de butée de fin de course (14), sur la face avant du piston de butée (12) un premier perçage (20) comprenant une sortie en arrière de ce piston de butée (12), sur le côté du piston de butée (12) un deuxième perçage (22) comprenant une sortie en arrière de ce piston de butée (12), et comportant un boisseau (30) coulissant équipé d'une chambre de temporisation (26), qui dans une position avant ferme au moins une sortie des perçages (20, 22) et dans une position arrière relie ces sorties, le boisseau (30) étant entre un ressort de rappel avant (44) et un ressort de rappel arrière (46) prenant appui sur le piston d'amortisseur (6).
Latest bibliographic data on file with the International Bureau