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1. EP2035265 - VEHICLE BRAKE SYSTEM PISTON PUMP

Office European Patent Office
Application Number 07728585
Application Date 27.04.2007
Publication Number 2035265
Publication Date 18.03.2009
Publication Kind B1
IPC
B60T 8/40
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
40comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
F04B 9/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
9Piston machines or pumps characterised by the driving or driven means to or from their working members
02the means being mechanical
04the means being cams, eccentrics or pin-and-slot mechanisms
CPC
B60T 8/4031
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
32responsive to a speed condition, e.g. acceleration or deceleration
34having a fluid pressure regulator responsive to a speed condition
40comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
4031Pump units characterised by their construction or mounting
F04B 1/0413
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
04having cylinders in star- or fan-arrangement
0404Details or component parts
0413Cams
Applicants BOSCH GMBH ROBERT
Inventors SINNL ERWIN
FEESER HANS
Title
(DE) FAHRZEUGBREMSANLAGEN-KOLBENPUMPE
(EN) VEHICLE BRAKE SYSTEM PISTON PUMP
(FR) POMPE À PISTON POUR UNE INSTALLATION DE FREIN DE VÉHICULE
Abstract
(DE)
Eine Fahrzeugbremsanlagen-Kolbenpumpe (32) mit einem Kolben (18), der in einer Kolbenführung verschiebbar gelagert ist, sowie einem Antriebselement zum Verschieben des Kolbens (18), an dem der Kolben (18) mit einer seiner Stirnseiten (20) druckkraftübertragend gekoppelt ist und das mit einer Antriebswelle (14) und einem darauf drehfest ausgebildeten Antriebsexzenter (16) gebildet ist, ist erfindungsgemäß dadurch gekennzeichnet, dass der Antriebsexzenter (16) dreiteilig mit einer ersten und einer zweiten Anlagescheibe (38, 46) sowie einem Exzenterring (36) gebildet und der Exzenterring (36) zwischen den beiden Anlagescheiben (38, 46) angeordnet ist. Alternativ oder zusätzlich ist die Antriebswelle (14) vorteilhaft mit einem Wellendurchmesser von zwischen ca. 3 mm und ca. 6 mm gestaltet und/oder der Antriebsexzenter (16) ist von einem Lager (58) umgeben, welches baugleich mit einem die Antriebswelle (14) stützenden Lager (26) gestaltet ist.

(EN)
A vehicle brake system piston pump (32) having a piston (18) which is mounted in a movable fashion in a piston guide, and having a drive element for moving the piston (18), to which drive element the piston (18) is coupled in a compressive-force-transmitting manner with one of its end sides (20), and which drive element is formed with a driveshaft (14) and a drive eccentric (16) which is rotationally fixedly formed thereon, is characterized according to the invention in that the drive eccentric (16) is formed in three parts with a first and a second contact disk (38, 46) and an eccentric ring (36), and the eccentric ring (36) is arranged between the two contact disks (38, 46). Alternatively or in addition, the driveshaft (14) is advantageously configured with a shaft diameter of between approximately 3 mm and approximately 6 mm and/or the drive eccentric (16) is surrounded by a bearing (58) which is of identical construction to a bearing (26) which supports the driveshaft (14).

(FR)
L'invention concerne une pompe à piston (32) pour une installation de frein de véhicule, comprenant un piston (18) qui est monté de manière déplaçable dans un guidage de piston, ainsi qu'un élément d'entraînement pour déplacer le piston (18), auquel est connecté le piston (18) par l'un de ses côtés frontaux (20) avec transmission de la force de pression. L'élément d'entraînement est formé avec un arbre d'entraînement (14) et un excentrique d'entraînement (16) fixé sur lui de manière solidaire en rotation, et conformément à l'invention, l'excentrique d'entraînement (16) est formé en trois parties avec un premier et un deuxième disque d'appui (38, 46) et une bague d'excentrique (36) et la bague d'excentrique (36) est disposée entre les deux disques d'appui (38, 46). En variante, ou en plus, l'arbre d'entraînement (14) est avantageusement configuré avec un diamètre d'arbre compris entre environ 3 mm et environ 6 mm et/ou l'excentrique d'entraînement (16) est entouré par un palier (58) qui est configuré avec un palier (26) supportant l'arbre d'entraînement (14), dans une construction similaire.

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