EP 2638273 A1 20130918 - PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KOLBEN FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
PISTON POUR MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102010051319 A 20101113
- DE 2011001972 W 20111111
Abstract (en)
[origin: WO2012062286A1] The present invention relates to a piston (10) for an internal combustion engine, comprising a piston head (11) and a piston skirt (15) delimited by a lower skirt edge (18), wherein the piston skirt (15) comprises a running surface (16) associated with the pressure side (DS) of the piston skirt and a running surface (17) associated with the counter-pressure side (GDS) of the piston skirt and a zone (21, 21') is associated with each of the two running surfaces (16, 17), which zone starts from the lower skirt edge (18) and is exposed to a maximum load during the operation of the internal combustion engine. According to the invention, the zone (21) of the running surface (16) associated with the pressure side (DS) and/or the zone (21') of the running surface (17) associated with the counter-pressure side (GDS) is provided with a coating (23, 23'), which has vertically extending grooves (24, 24').
IPC 8 full level
CPC (source: EP KR US)
F02F 3/10 (2013.01 - EP KR US); F16J 1/08 (2013.01 - EP KR US); F05C 2251/14 (2013.01 - EP US)
Citation (search report)
See references of WO 2012062286A1
Citation (examination)
- JP 2010106724 A 20100513 - HINO MOTORS LTD
- US 4280455 A 19810728 - YAMAGUCHI HIROSHI, et al
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 102010051319 A1 20120516; BR 112013011884 A2 20161101; CN 103210198 A 20130717; CN 103210198 B 20161019; EP 2638273 A1 20130918; KR 20130138808 A 20131219; US 2013008405 A1 20130110; US 8794208 B2 20140805; WO 2012062286 A1 20120518
DOCDB simple family (application)
DE 102010051319 A 20101113; BR 112013011884 A 20111111; CN 201180054582 A 20111111; DE 2011001972 W 20111111; EP 11817266 A 20111111; KR 20137014850 A 20111111; US 201113293358 A 20111110