EP 0929430 A1 19990721 - BRAKE BOOSTER WITH AN ELECTROMAGNETIC ACTUATING UNIT
Title (en)
BRAKE BOOSTER WITH AN ELECTROMAGNETIC ACTUATING UNIT
Title (de)
BREMSKRAFTVERSTÄRKER MIT ELEKTROMAGNETISCHER BETÄTIGUNGSEINHEIT
Title (fr)
SERVOFREIN A UNITE D'ACTIONNEMENT ELECTROMAGNETIQUE
Publication
Application
Priority
- DE 19641889 A 19961010
- EP 9705479 W 19971006
Abstract (en)
[origin: DE19641889C1] A brake booster (10) for a vehicle braking system comprising a housing (12) subdivided by at least one moveable wall (14) into a vacuum chamber (18) and a working chamber (16). A control valve arrangement (20) pertaining to the brake booster and selectively connecting the working chamber (16) to atmospheric pressure or a vacuum, comprises a control valve housing (21) connected to the moveable wall (14) for common relative movement with regard to brake booster housing (12). Accommodated in the control valve housing (21) is an electromagnetic actuating unit (26) with a magnetic coil (44), a magneto armature (28) working against a spring preload rigidly coupled to the first valve seat (32) of the control valve arrangement (20), and a magneto armature counterpart (46). In order to improve magnetic flow in electromagnetic actuating unit (26) whilst at the same time reducing the number of parts the magneto armature counterpart (46) is penetrated by a diamagnetic and preferably light material insert (92) forming a guide (94) for an actuating piston (64) and protruding from the magneto armature counterpart (46) in the direction of the magneto armature (28).
IPC 1-7
IPC 8 full level
B60T 13/68 (2006.01); B60T 13/52 (2006.01); B60T 13/575 (2006.01); B60T 13/72 (2006.01)
CPC (source: EP KR US)
B60T 13/575 (2013.01 - EP US); B60T 13/72 (2013.01 - EP KR US)
Citation (search report)
See references of WO 9815442A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19641889 C1 19980423; EP 0929430 A1 19990721; JP 2001501556 A 20010206; KR 20000049025 A 20000725; US 6044750 A 20000404; WO 9815442 A1 19980416
DOCDB simple family (application)
DE 19641889 A 19961010; EP 9705479 W 19971006; EP 97911181 A 19971006; JP 51716598 A 19971006; KR 19997003091 A 19990409; US 28952499 A 19990409