EP 2971716 A1 20160120 - TWO-PART STEEL PISTON, JOINING PROCESS
Title (en)
TWO-PART STEEL PISTON, JOINING PROCESS
Title (de)
ZWEITEILIGER STAHLKOLBEN, FÜGEPROZESS
Title (fr)
PISTON EN ACIER EN DEUX PARTIES, PROCÉDÉ D'ASSEMBLAGE
Publication
Application
Priority
- DE 102013204630 A 20130315
- EP 2014055117 W 20140314
Abstract (en)
[origin: WO2014140287A1] The invention relates to a piston (10), in particular a cooling channel piston, for an internal combustion engine, comprising at least one lower part (2) and one upper part (3), a combustion chamber (13) and at least one annular groove (11), wherein the upper part (3) or the lower part (2) is fastened by means of at least one undercut on the lower part (2) or on the upper part (3), characterised in that the upper part (3) comprises at least one combustion chamber (13) and at least one annular groove (11). The invention further relates to a method for producing such a piston.
IPC 8 full level
CPC (source: EP US)
B21K 25/00 (2013.01 - EP US); F02F 3/0015 (2013.01 - US); F02F 3/003 (2013.01 - EP US); F02F 3/0092 (2013.01 - US); F02F 3/22 (2013.01 - EP US)
Citation (search report)
See references of WO 2014140287A1
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 102014204774 A1 20140918; CN 105189999 A 20151223; EP 2971716 A1 20160120; US 2016069294 A1 20160310; WO 2014140287 A1 20140918
DOCDB simple family (application)
DE 102014204774 A 20140314; CN 201480014631 A 20140314; EP 14711950 A 20140314; EP 2014055117 W 20140314; US 201414776966 A 20140314