Search International and National Patent Collections

1. (WO2018219529) BISTABLE SOLENOID VALVE FOR A HYDRAULIC BRAKING SYSTEM AND CORRESPONDING HYDRAULIC BRAKING SYSTEM

Pub. No.:    WO/2018/219529    International Application No.:    PCT/EP2018/058687
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Apr 06 01:59:59 CEST 2018
IPC: B60T 8/36
F16K 31/08
H01F 7/122
Applicants: ROBERT BOSCH GMBH
Inventors: STAHR, Wolf
LANDESFEIND, Klaus
AMBROSI, Massimiliano
EISENLAUER, Michael
KURZ, Edgar
SCHULLER, Wolfgang
Title: BISTABLE SOLENOID VALVE FOR A HYDRAULIC BRAKING SYSTEM AND CORRESPONDING HYDRAULIC BRAKING SYSTEM
Abstract:
The invention relates to a bistable solenoid valve (10A, 10B, 10C) for a hydraulic braking system (1A, 1B), comprising a magnetic assembly (20, 20C) and a guide sleeve (13, 13C), in which a stationary component (11) is fixedly arranged and in which a valve armature (17A, 17B, 17C) having a permanent magnet (18A, 18B, 18C), which is polarized in the direction of motion thereof, is axially movably arranged, the magnetic assembly (20, 20C) being slid onto the stationary component (11) and the guide sleeve (13, 13C), and the stationary component (11) forming an axial stop for the valve armature (17A, 17B, 17C), the valve armature (17A, 17B, 17C) being drivable by a magnetic force produced by the magnetic assembly (20, 20C) or by a magnetic force of the permanent magnet (18A, 18B, 18C) and forcing a closing element (17.1, 17.1C) into a valve seat (15.1, 15.1C) during a closing motion and lifting said closing element out of the valve seat (15.1, 15.1C) during an opening motion. The invention further relates to a hydraulic braking system (1A, 1B) having at least one such bistable solenoid valve (10A, 10B, 10C). The valve armature (17A, 17B, 17C) has, on the first end face thereof facing the stationary component (11), a magnet receptacle (17.3, 17.3C), which holds the permanent magnet (18A, 18B, 18C).