EP 1259409 A1 20021127 - VACUUM BRAKE BOOSTER COMPRISING AN IMPROVED MAGNET-FREE EMERGENCY BRAKE AID SYSTEM
Title (en)
VACUUM BRAKE BOOSTER COMPRISING AN IMPROVED MAGNET-FREE EMERGENCY BRAKE AID SYSTEM
Title (de)
UNTERDRUCK- BREMSKRAFTVERSTÄRKER MIT VERBESSERTER, MAGNETLOSER NOTBREMSHILFE
Title (fr)
SERVOFREIN A DEPRESSION COMPRENANT UN SYSTEME AMELIORE D'AIDE AU FREINAGE D'URGENCE SANS AIMANT
Publication
Application
Priority
- DE 10010385 A 20000303
- EP 0102092 W 20010223
Abstract (en)
[origin: DE10010385A1] Sub-atmospheric pressure brake force amplifier (10) has a sub-atmospheric pressure chamber (16) with a pressure-tight work chamber (18) separated from it by a movable wall (14). A control valve (20) controls with a first valve sealing member (42) the feed of atmospheric pressure or excess pressure to the work chamber (18) dependent upon the displacement of an input member (24) of the brake force amplifier, in order to achieve a pressure difference on the movable wall. A first valve seat (40) is formed on a displaceable valve member (38), which is coupled in the operating direction of the brake force amplifier with the input member. A second valve seat (44), in conjunction with the first valve sealing member, controls a connection between the sub-pressure chamber and the work chamber. The valve member, on its rear side facing the input member, is exposed to the pressure ruling in the work chamber.
[origin: DE10010385A1] Sub-atmospheric pressure brake force amplifier (10) has a sub-atmospheric pressure chamber (16) with a pressure-tight work chamber (18) separated from it by a movable wall (14). A control valve (20) controls with a first valve sealing member (42) the feed of atmospheric pressure or excess pressure to the work chamber (18) dependent upon the displacement of an input member (24) of the brake force amplifier, in order to achieve a pressure difference on the movable wall. A first valve seat (40) is formed on a displaceable valve member (38), which is coupled in the operating direction of the brake force amplifier with the input member. A second valve seat (44), in conjunction with the first valve sealing member, controls a connection between the sub-pressure chamber and the work chamber. The valve member, on its rear side facing the input member, is exposed to the pressure ruling in the work chamber.
IPC 1-7
IPC 8 full level
B60T 8/32 (2006.01); B60T 13/52 (2006.01); B60T 13/57 (2006.01)
CPC (source: EP US)
B60T 8/3275 (2013.01 - EP US); B60T 13/52 (2013.01 - EP US); B60T 13/57 (2013.01 - EP US)
Citation (search report)
See references of WO 0166398A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 10010385 A1 20010913; DE 10010385 B4 20050616; EP 1259409 A1 20021127; US 2003010193 A1 20030116; US 6711983 B2 20040330; WO 0166398 A1 20010913
DOCDB simple family (application)
DE 10010385 A 20000303; EP 0102092 W 20010223; EP 01927699 A 20010223; US 23186602 A 20020829