EP 1286872 A2 20030305 - REACTION DISC HOUSING AND BRAKE SERVO UNIT COMPRISING SAME
Title (en)
REACTION DISC HOUSING AND BRAKE SERVO UNIT COMPRISING SAME
Title (de)
SITZ EINER REAKTIONSSCHEIBE UND BREMSKRAFTVERSTÄRKER, DER EINEN SOLCHEN SITZ UMFASST
Title (fr)
LOGEMENT D'UN DISQUE DE REACTION ET SERVOMOTEUR COMPORTANT UN TEL LOGEMENT
Publication
Application
Priority
- FR 0101507 W 20010517
- FR 0006715 A 20000519
Abstract (en)
[origin: WO0187681A2] The invention mainly concerns a housing for receiving a reaction disc and a pneumatic brake servo unit comprising such a housing equipped with its reaction disc. A pneumatic brake servo unit is provided with means adapted to counter an excessively fast feed of the pneumatic piston when the brake is actuated, liable to cause the re-opening of the communication channel between the front and rear chambers of the pneumatic brake servo unit. The invention is characterised in that it consists in using the resiliency of a reaction disc (39) to counter an excessively fast initial feed of the piston (11). In the preferred embodiment, the substantially incompressible reaction disc (39) is received in a housing (47) whereof the internal volume is greater than the volume of the disc (39). The deformation of the disc (39) during a initial braking phase, deforms the disc so that it fills up entirely its housing (47) such that it can perform, during a subsequent braking phase, its conventional role of reaction disc. The application of the reaction disc (39) on the distributing plunger or any other part integral with the control rod controlling the valves, limits the feeding speed of the pneumatic piston when the brake is actuated and prevents or limits undesired reopening of the communication channels between the front and rear chambers of the pneumatic brake servo unit. The invention is particularly applicable to the car industry, and mainly to brake manufacturing.
IPC 1-7
IPC 8 full level
B60T 13/573 (2006.01); B60T 13/575 (2006.01)
CPC (source: EP KR US)
B60T 13/575 (2013.01 - EP KR US)
Citation (search report)
See references of WO 0187681A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0187681 A2 20011122; WO 0187681 A3 20020404; AU 2001262438 B2 20050127; AU 6243801 A 20011126; BR 0111361 A 20031216; BR 0111361 B1 20110208; CN 1301877 C 20070228; CN 1620381 A 20050525; EP 1286872 A2 20030305; FR 2809068 A1 20011123; FR 2809068 B1 20020809; JP 2003533401 A 20031111; KR 100719155 B1 20070517; KR 20030010627 A 20030205; MX PA02012328 A 20050701; PL 210513 B1 20120131; PL 365563 A1 20050110; RU 2266220 C2 20051220; US 2002125766 A1 20020912; US 6516703 B2 20030211
DOCDB simple family (application)
FR 0101507 W 20010517; AU 2001262438 A 20010517; AU 6243801 A 20010517; BR 0111361 A 20010517; CN 01811423 A 20010517; EP 01936555 A 20010517; FR 0006715 A 20000519; JP 2001584100 A 20010517; KR 20027015621 A 20010517; MX PA02012328 A 20010517; PL 36556301 A 20010517; RU 2002134453 A 20010517; US 86870701 A 20010620