EP 2252806 A1 20101124 - PISTON SEALING ELEMENT AND RETARDATION DEVICE HAVING PISTON SEALING ELEMENT
Title (en)
PISTON SEALING ELEMENT AND RETARDATION DEVICE HAVING PISTON SEALING ELEMENT
Title (de)
KOLBENDICHTELEMENT UND VERZÖGERUNGSVORRICHTUNG MIT KOLBENDICHTELEMENT
Title (fr)
ÉLÉMENT D'ÉTANCHÉITÉ DE PISTON ET DISPOSITIF DE FREINAGE COMPORTANT UN ÉLÉMENT D'ÉTANCHÉITÉ DE PISTON
Publication
Application
Priority
- DE 2009000242 W 20090223
- DE 102008010908 A 20080225
Abstract (en)
[origin: WO2009106049A1] The invention relates to a piston sealing element (51) having at least one sleeve-shaped deformation region (53) that is delimited in the longitudinal direction of the piston sealing element by two surfaces (58, 59), wherein said deformation region (53) has a lateral surface (56) with at least one channel (65) that connects said two surfaces (58, 59), and to a retardation device having such a piston sealing element. For this purpose, the channel (65) at least in sections is disposed wound in a helical line shape. With the present invention a piston sealing element has been developed, which achieves an effect that is largely independent of the ambient temperature at an efficiency that is comparable to conventional piston sealing elements.
IPC 8 full level
CPC (source: EP US)
F16F 7/09 (2013.01 - EP US); F16F 9/368 (2013.01 - EP US)
Citation (search report)
See references of WO 2009106049A1
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009106049 A1 20090903; DE 102008010908 A1 20090924; DE 102008010908 B4 20150528; EP 2252806 A1 20101124; JP 2011513657 A 20110428; JP 5574984 B2 20140820; US 2011024248 A1 20110203
DOCDB simple family (application)
DE 2009000242 W 20090223; DE 102008010908 A 20080225; EP 09715650 A 20090223; JP 2010547947 A 20090223; US 80667510 A 20100818