EP 1330381 A1 20030730 - VACUUM BRAKE BOOSTER COMPRISING A MECHANICAL EMERGENCY BRAKING AUXILIARY SYSTEM
Title (en)
VACUUM BRAKE BOOSTER COMPRISING A MECHANICAL EMERGENCY BRAKING AUXILIARY SYSTEM
Title (de)
UNTERDRUCK-BREMSKRAFTVERSTÄRKER MIT MECHANISCHER NOTBREMSHILFE
Title (fr)
SERVOFREIN A DEPRESSION A FREINAGE DE SECOURS MECANIQUE
Publication
Application
Priority
- DE 10054252 A 20001102
- EP 0104523 W 20010420
Abstract (en)
[origin: WO0236403A1] The invention relates to a vacuum brake booster (10) comprising a vacuum chamber (16), a working chamber (18) which is separated from said vacuum chamber by a moveable wall, and a control valve (20) comprising a housing (12) which is coupled to the moveable wall in a force-transmitting manner (14). Said control valve is able to control the supply of atmospheric pressure or vacuum to the working chamber (18) according to the displacement of an actuating piston (28), in order to obtain a pressure difference on the moveable wall (14). The inventive vacuum brake booster (10) comprises an emergency braking auxiliary system having a permanent magnet (38) and an armature (36) which interacts with the permanent magnet (38). Said armature is elastically pre-stressed against the actuating direction and is pulled by the permanent magnet (38) in the event of emergency braking in the system, in such a way that the control valve (20) is held open for the supply of atmospheric pressure to the working chamber (18). The vacuum brake booster (10) comprises a coupling device (90) for detachably coupling the armature (36) to the actuating piston (28).
IPC 1-7
IPC 8 full level
B60T 8/32 (2006.01); B60T 13/52 (2006.01); B60T 13/57 (2006.01); B60T 13/72 (2006.01)
CPC (source: EP KR US)
B60T 8/3275 (2013.01 - EP US); B60T 13/52 (2013.01 - EP KR US); B60T 13/57 (2013.01 - EP US); B60T 13/72 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 0236403 A1 20020510; AU 6736301 A 20020515; BR 0113880 A 20030715; DE 10054252 A1 20020516; DE 10054252 B4 20060518; EP 1330381 A1 20030730; JP 2004513817 A 20040513; KR 20030045161 A 20030609; US 2003188632 A1 20031009; US 6672198 B2 20040106
DOCDB simple family (application)
EP 0104523 W 20010420; AU 6736301 A 20010420; BR 0113880 A 20010420; DE 10054252 A 20001102; EP 01945026 A 20010420; JP 2002539180 A 20010420; KR 20037006080 A 20030501; US 42708803 A 20030430