EP 1532031 A1 20050525 - MASTER CYLINDER
Title (en)
MASTER CYLINDER
Title (de)
HAUPTZYLINDER
Title (fr)
MAITRE-CYLINDRE
Publication
Application
Priority
- DE 10234541 A 20020730
- DE 10321380 A 20030512
- DE 10321381 A 20030512
- EP 0308424 W 20030730
Abstract (en)
[origin: WO2004012974A1] The invention relates to a master cylinder (1), in particular for a hydraulic braking system, comprising at least one pressure chamber (3) that is configured in a housing (2) of the master cylinder (1) and at least one container bore (4) for accommodating a hydraulic fluid container (5). According to the invention, a valve (6) is provided with a closing body (7, 24), which can be displaced into an open position or a closed position as a result of a prevailing pressure differential between the pressure chamber (3) and the hydraulic fluid container (5). In the open position, the valve (6) permits a flow (S1) of hydraulic fluid from the hydraulic fluid container (5) to the pressure chamber (3) and in the closed position restricts or prevents a flow (S2) of hydraulic fluid in the opposite direction to the hydraulic fluid flow (S1), from the pressure chamber (3) to the hydraulic fluid container (5). To permit the reduction of the free travel of the master cylinder, in addition to the vacuum filling of the braking system, means are provided, which hold the closing body (7, 24) that is subjected to a closing pressure differential, induced by an evacuation that enables the braking system to be vacuum filled, in the open position and which permit the displacement of the closing body (7, 24) into the closed position, when the brakes are actuated.
IPC 1-7
IPC 8 full level
B60T 11/16 (2006.01); B60T 11/22 (2006.01); B60T 11/232 (2006.01); F15B 21/04 (2006.01)
CPC (source: EP KR US)
B60T 11/228 (2013.01 - KR); B60T 11/232 (2013.01 - EP US); B60T 11/30 (2013.01 - KR); B60T 17/22 (2013.01 - KR); F15B 21/005 (2013.01 - EP US)
Citation (search report)
See references of WO 2004012974A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2004012974 A1 20040212; CN 100343100 C 20071017; CN 1671585 A 20050921; EP 1532031 A1 20050525; JP 2005534562 A 20051117; KR 20050031465 A 20050406; US 2005269180 A1 20051208; US 7152406 B2 20061226
DOCDB simple family (application)
EP 0308424 W 20030730; CN 03818296 A 20030730; EP 03766364 A 20030730; JP 2004525381 A 20030730; KR 20057001693 A 20050129; US 52192305 A 20050121