EP 2686574 A1 20140122 - PNEUMATIC BRAKE CYLINDER WITH A LABYRINTH FLOW DUCT
Title (en)
PNEUMATIC BRAKE CYLINDER WITH A LABYRINTH FLOW DUCT
Title (de)
PNEUMATISCHER BREMSZYLINDER MIT LABYRINTH-STRÖMUNGSKANAL
Title (fr)
CYLINDRE DE FREIN PNEUMATIQUE À CONDUIT D'ÉCOULEMENT EN LABYRINTHE
Publication
Application
Priority
- DE 102011014261 A 20110317
- EP 2012053965 W 20120308
Abstract (en)
[origin: WO2012123316A1] A pneumatic brake cylinder (2, 4) for brake systems of vehicles, with a brake piston (8, 26) which is arranged in the brake cylinder housing (15) and can be brought into a release or brake application position by ventilating and venting a brake chamber (12, 20), wherein the volume of at least one chamber (14, 31, 36) differing from the brake chamber (12, 20) is reduced or enlarged owing to the application or release of the brake, and a ventilation and venting opening (34) connecting the at least one chamber (14, 31, 36) to the atmosphere is provided. The at least one chamber (14, 31, 36) is connected to the ventilating and venting opening (34) by at least one labyrinth flow duct (38) which is designed in the manner of a labyrinth seal and repeatedly deflects a flow, which can be attributed to the application and/or release of the brake, from the chamber (14, 31, 36) into the atmosphere or from the atmosphere into the chamber (14, 31, 36).
IPC 8 full level
F16D 55/224 (2006.01); B60T 13/38 (2006.01); B60T 17/08 (2006.01); F16D 65/18 (2006.01)
CPC (source: EP)
B60T 13/38 (2013.01); B60T 17/083 (2013.01); B61H 5/00 (2013.01); F16D 55/2245 (2013.01); F16D 65/18 (2013.01); F16D 2121/02 (2013.01); F16D 2121/12 (2013.01)
Citation (search report)
See references of WO 2012123316A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102011014261 A1 20120920; CN 103459878 A 20131218; EP 2686574 A1 20140122; WO 2012123316 A1 20120920
DOCDB simple family (application)
DE 102011014261 A 20110317; CN 201280013669 A 20120308; EP 12708820 A 20120308; EP 2012053965 W 20120308