EP 3164587 B1 20200422 - GAP GEOMETRY IN A COHESIVELY JOINED COOLING-CHANNEL PISTON
Title (en)
GAP GEOMETRY IN A COHESIVELY JOINED COOLING-CHANNEL PISTON
Title (de)
SPALTGEOMETRIE BEI EINEM STOFFSCHLÜSSIG GEFÜGTEN KÜHLKANALKOLBEN
Title (fr)
GÉOMÉTRIE DE FENTE DANS UN PISTON DE CANAL DE REFROIDISSEMENT ASSEMBLÉ PAR LIAISON DE MATIÈRE
Publication
Application
Priority
- DE 102014212769 A 20140702
- EP 2015065146 W 20150702
Abstract (en)
[origin: WO2016001379A1] The invention relates to a cooling-channel piston (1, 100) for an internal combustion engine, having an upper part (2, 102) and a lower part (3, 103), wherein said two parts (2, 3; 102, 103) are connected to one another by way of a cohesive joint in the form of a weld seam (11), and said two parts (2, 3; 102, 103) form an annularly encircling cooling channel (6) which is arranged approximately behind a ring section (4), wherein a gap geometry (13, 113) is provided between a lower edge (16) of the ring section (4) and an upper edge (17) of a lower part (3, 103), wherein the gap geometry (3, 113) has at least one sliding surface (19) which is arranged on a lower edge (16) of the ring section (4) of the cooling-channel piston (1, 100) and/or on the corresponding upper edge (17) of a lower part (3, 103) of the cooling-channel piston (1, 100), and to several methods for the operation of a cooling-channel piston.
IPC 8 full level
CPC (source: CN EP US)
F02F 3/003 (2013.01 - CN EP US); F02F 3/22 (2013.01 - CN EP US); F02F 2003/0061 (2013.01 - CN EP US)
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 102015212445 A1 20160107; CN 106662035 A 20170510; CN 106662035 B 20190723; EP 3164587 A1 20170510; EP 3164587 B1 20200422; JP 2017521595 A 20170803; JP 6359129 B2 20180718; US 10337450 B2 20190702; US 2017138297 A1 20170518; WO 2016001379 A1 20160107
DOCDB simple family (application)
DE 102015212445 A 20150702; CN 201580042127 A 20150702; EP 15733753 A 20150702; EP 2015065146 W 20150702; JP 2016575862 A 20150702; US 201515323368 A 20150702