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1. WO1997029000 - ELECTROMAGNETICALLY ACTUATED VALVE, ESPECIALLY FOR HYDRAULIC MOTOR VEHICLE BRAKING SYSTEMS

Publication Number WO/1997/029000
Publication Date 14.08.1997
International Application No. PCT/DE1996/002399
International Filing Date 12.12.1996
Chapter 2 Demand Filed 14.06.1997
IPC
B60T 8/36 2006.01
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
36including a pilot valve responding to an electromagnetic force
B60T 8/50 2006.01
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
50having means for controlling the rate at which pressure is reapplied to the brake
B60T 15/02 2006.01
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
15Construction, arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/ or B60T13/172
02Application and release valves
F16K 31/06 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
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Operating means; Releasing devices
02electric; magnetic
06using a magnet
CPC
B60T 15/028
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
15Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
02Application and release valves
025Electrically controlled valves
028in hydraulic systems
B60T 8/363
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
36including a pilot valve responding to an electromagnetic force
3615Electromagnetic valves specially adapted for anti-lock brake and traction control systems
363in hydraulic systems
B60T 8/365
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
36including a pilot valve responding to an electromagnetic force
3615Electromagnetic valves specially adapted for anti-lock brake and traction control systems
363in hydraulic systems
365combining a plurality of functions in one unit, e.g. pressure relief
B60T 8/367
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
36including a pilot valve responding to an electromagnetic force
3615Electromagnetic valves specially adapted for anti-lock brake and traction control systems
3655Continuously controlled electromagnetic valves
366Valve details
367Seat valves, e.g. poppet valves
B60T 8/5025
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
50having means for controlling the rate at which pressure is reapplied to ; or released from; the brake
5018Pressure reapplication using restrictions
5025in hydraulic brake systems
F16K 31/06
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
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Actuating devices;; Operating means; Releasing devices
02electric
06using a magnet ; , e.g. diaphragm valves, cutting off by means of a liquid
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE] (AllExceptUS)
  • HOHL, Günther [DE]/[DE] (UsOnly)
  • MITTWOLLEN, Norbert [DE]/[DE] (UsOnly)
  • SOMMER, Dietmar [DE]/[US] (UsOnly)
Inventors
  • HOHL, Günther
  • MITTWOLLEN, Norbert
  • SOMMER, Dietmar
Priority Data
196 04 315.807.02.1996DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ELEKTROMAGNETISCH BETÄTIGTES VENTIL, INSBESONDERE FÜR HYDRAULISCHE BREMSANLAGEN VON KRAFTFAHRZEUGEN
(EN) ELECTROMAGNETICALLY ACTUATED VALVE, ESPECIALLY FOR HYDRAULIC MOTOR VEHICLE BRAKING SYSTEMS
(FR) SOUPAPE ACTIONNEE PAR VOIE ELECTROMAGNETIQUE, NOTAMMENT POUR SYSTEMES DE FREINAGE HYDRAULIQUES DE VEHICULES A MOTEUR
Abstract
(DE)
Das Ventil (10) hat ein Sitzventil (41) mit einem hohlkegelförmigen Ventilsitz (28) und ein Schließglied (37) in der Form eines Kugelsegments. In den Ventilsitz (28) mündet zentrisch eine mit einem Druckmitteleinlaß (24) in Verbindung stehende Zuströmbohrung (29). An einem das Schließglied (37) aufweisenden Stößel (20) greifen ein schließend auf das Sitzventil (41) wirkender Magnetanker (19) und eine öffnend wirkende Rückstellfeder (22) an. Das prinzipiell als Schaltventil ausgebildete Ventil (10) ist aufgrund folgender Maßnahmen in stabile Zwischenstellungen steuerbar: Der Dichtdurchmesser des Ventilsitzes (28) hat wenigstens das 1,3-fache des Durchmessers der Zuströmbohrung (29); der Kegelwinkel des Ventilsitzes (28) beträgt höchstens 110°; die Magnetkraft ist stufenlos veränderbar, wobei deren Verlauf mit zunehmendem Ventilöffnungshub monoton abfällt; die vom Druckmittel und der Rückstellfeder (22) herrührende Kraft am Schließglied (37) weist einen mit zunehmendem Ventilöffnungshub monoton fallenden Verlauf auf, dessen Neigung betragsmäßig größer ist als diejenige des Magnetkraftverlaufs.
(EN)
The valve (10) has a seat valve (41) with a valve seat (28) in the form of a hollow cone and a closing member (37) in the form of a spherical segment. An inlet drilling (29) connected to a pressure medium inlet (26) opens centrally into the valve seat (28). A magnetic armature (19) closing the seat valve (41) and an opening return spring (22) operate on a pushrod (20) bearing the closing member (37). The valve (10) essentially taking the form of a control valve can be controlled in stable intermediate positions owing to the facts that: the sealing diameter of the valve seat (28) is at least 1.3 times that of the inlet drilling (29); the cone angle of the valve seat (28) is at most 110°; the magnetic force is steplessly variable and it drops uniformly as the valve travel increases; the force exerted on the closing member (37) by the pressure medium and the return spring (22) falls uniformly as the valve opening travel increases and its slope is greater than that of the magnetic force.
(FR)
Cette soupape (10) comprend une soupape à siège (41) présentant un siège de soupape (28) en forme de cône creux, et un élément de fermeture (37) en forme de segment sphérique. Un orifice d'amenée (29) communiquant avec un orifice d'entrée (24) du fluide de pression débouche de façon centrale dans le siège de soupape (28). Un induit magnétique (19) ayant pour effet d'obturer la soupape à siège (41) et un ressort de rappel (22) ayant pour effet d'ouvrir la même soupape agissent sur un poussoir (20) comportant l'élément de fermeture (37). Cette soupape (10) conçue pratiquement comme une soupape de commande peut être commandée dans des positions intermédiaires stables pour les raisons suivantes: le diamètre d'étanchéité du siège de soupape (28) représente au moins 1,3 fois le diamètre de l'orifice d'amenée (29); l'angle de cône du siège de soupape (28) s'élève au maximum à 110°; la force magnétique peut être modifiée progressivement et elle décroît de façon uniforme au fur et à mesure que la course d'ouverture de la soupape augmente; la force exercée par le fluide de pression et le ressort de rappel (22) sur l'élément de fermeture (37) décroît de façon uniforme au fur et à mesure que la course d'ouverture de la soupape augmente, sa pente étant plus importante que celle de la force magnétique.
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