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1. WO2000040868 - HYDRAULIC CLUTCH MASTER CYLINDER COMPRISING IMPROVED ARTICULATION MEANS FOR THE PISTON ROD

Publication Number WO/2000/040868
Publication Date 13.07.2000
International Application No. PCT/FR1999/003278
International Filing Date 23.12.1999
IPC
F15B 15/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08characterised by the construction of the motor unit
14of the straight-cylinder type
F16D 25/08 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
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
25Fluid-actuated clutches
08with fluid-actuated member not rotating with a clutching member
CPC
F15B 15/1447
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
08Characterised by the construction of the motor unit
14of the straight-cylinder type
1423Component parts; Constructional details
1447Pistons; Piston to piston rod assemblies
F16D 25/088
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
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
25Fluid-actuated clutches
08with fluid-actuated member not rotating with a clutching member
088the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
Applicants
  • VALEO [FR/FR]; 43, rue Bayen F-75017 Paris, FR (AllExceptUS)
  • REY, Frédéric [FR/FR]; FR (UsOnly)
Inventors
  • REY, Frédéric; FR
Agents
  • THIBAUDEAU, David; Le Triangle 15, rue des Rosiers F-93585 Saint-Ouen, FR
Priority Data
98/1661930.12.1998FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) HYDRAULIC CLUTCH MASTER CYLINDER COMPRISING IMPROVED ARTICULATION MEANS FOR THE PISTON ROD
(FR) CYLINDRE HYDRAULIQUE EMETTEUR D'EMBRAYAGE COMPORTANT DES MOYENS PERFECTIONNES D'ARTICULATION DE LA TIGE DE PISTON
Abstract
(EN)
The invention concerns a clutch master cylinder comprising at least a front piston (12) and a rear rod (14) actuating the piston (12) whereof a front head has a generally convex spherical shape and is received in a matching housing, formed in the front base (64) of an axial bore (22) of the piston body (16), and comprising a directly mounted element (20) axially maintaining the piston rod (14). The invention is characterised in that the head (68) comprises a front cover (66) and a rear cover (70), both globally spherical, whereof the diameter is greater than the largest diametrical dimension of the bore (22), or close thereto, and co-operating with a front portion (64) of the housing in the form of a globally concave spherical matching cover arranged in the bore (22) front base and, respectively, with a rear part (60) of the housing arranged in the maintaining element (20, 54).
(FR)
L'invention propose un cylindre émetteur d'embrayage comportant au moins un piston avant (12) et une tige arrière (14) d'actionnement du piston (12) dont une tête avant (68) est en forme générale de sphère convexe et est reçue dans un logement complémentaire, formé dans le fond avant (64) d'un alésage axial (22) du corps (16) de piston, et du type comportant un élément rapport (20) de retenue axiale de la tige (14) de piston, caractérisé en ce que caractérisé en ce que la tête (68) comporte une calotte avant (66) et une calotte arrière (70) globalement sphériques dont le diamètre est supérieur à la plus grande dimension diamétrale de l'alésage (22), ou voisin de celui-ci, et qui coopèrent avec une portion avant (64) du logement en forme globalement de calotte sphérique concave complémentaire aménagée dans le fond avant de l'alésage (22) et, respectivement, avec une partie arrière (60) du logement aménagée dans l'élément (20, 54) de retenue.
Also published as
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