EP 3519806 A1 20190807 - METHOD AND DEVICE FOR MONITORING A STATE OF A PISTON SEAL
Title (en)
METHOD AND DEVICE FOR MONITORING A STATE OF A PISTON SEAL
Title (de)
VERFAHREN UND VORRICHTUNG ZUM ÜBERWACHEN EINES ZUSTANDS EINER KOLBENDICHTUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR SURVEILLER L'ÉTAT D'UNE GARNITURE DE PISTON
Publication
Application
Priority
- DE 102016218780 A 20160929
- EP 2017073885 W 20170921
Abstract (en)
[origin: WO2018060043A1] The invention relates to a method for monitoring a state of a piston seal (104) of a cylinder (100), wherein, in an execution step, a comparison is performed between a vibration signal (120) coupled into the cylinder (100) and a reflection signal (124), which is coupled out of the cylinder (100) and reflected on the piston seal (104), of the vibration signal (120) and/or a transmission signal (126), which is coupled out of the cylinder (100) and transmitted past the piston seal (104), of the vibration signal (120), and, in a determining step, a state value (136) which represents the state is determined using a result (138) of the comparison.
IPC 8 full level
G01N 29/04 (2006.01); G01N 29/44 (2006.01); G01N 29/48 (2006.01)
CPC (source: EP)
G01N 29/041 (2013.01); G01N 29/4436 (2013.01); G01N 29/4454 (2013.01); G01N 29/48 (2013.01); G01N 2291/011 (2013.01); G01N 2291/012 (2013.01); G01N 2291/015 (2013.01); G01N 2291/0235 (2013.01); G01N 2291/0258 (2013.01); G01N 2291/0423 (2013.01); G01N 2291/0427 (2013.01); G01N 2291/044 (2013.01); G01N 2291/048 (2013.01); G01N 2291/101 (2013.01); G01N 2291/102 (2013.01); G01N 2291/106 (2013.01)
Citation (search report)
See references of WO 2018060043A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102016218780 A1 20180329; BR 112019005243 A2 20190604; CN 109791127 A 20190521; EP 3519806 A1 20190807; WO 2018060043 A1 20180405
DOCDB simple family (application)
DE 102016218780 A 20160929; BR 112019005243 A 20170921; CN 201780060229 A 20170921; EP 17777824 A 20170921; EP 2017073885 W 20170921