EP 3377244 A1 20180926 - CAST INFLOW AND OUTFLOW OPENINGS FOR CAST-STEEL AND CAST-IRON PISTONS
Title (en)
CAST INFLOW AND OUTFLOW OPENINGS FOR CAST-STEEL AND CAST-IRON PISTONS
Title (de)
GEGOSSENE ZU- UND ABLAUFÖFFNUNGEN BEI STAHLGUSS- UND EISEN-GUSSKOLBEN
Title (fr)
OUVERTURES D'AMENÉE ET D'ÉVACUATION COULÉES DANS DES PISTONS EN FONTE D'ACIER ET EN FONTE DE FER
Publication
Application
Priority
- DE 102015222878 A 20151119
- EP 2016077950 W 20161117
Abstract (en)
[origin: WO2017085164A1] Method for producing a piston (8), which has a cooling channel (4) created by means of a lost core (3), wherein, in a casting process using a casting mould into which the core (3) is placed before casting and using a casting melt, a piston blank (1) is cast and, after the casting melt has solidified, the piston blank (1) is removed from the casting mould and the core (3) is subsequently flushed out, and this is followed by the finishing of the cast blank (1) to produce the piston (8), wherein the core (3) extends into a region of the casting mould that forms an inner region of the piston blank (1) and the core (3) is used to form at least one opening having a rounded profile for the cooling channel (4) after the flushing out.
IPC 8 full level
CPC (source: EP US)
B22C 9/10 (2013.01 - EP US); B22D 15/02 (2013.01 - EP US); F02F 3/16 (2013.01 - US); F02F 3/22 (2013.01 - EP US); B22C 9/04 (2013.01 - EP US); B22D 29/002 (2013.01 - EP US)
Citation (search report)
See references of WO 2017085164A1
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 102016122080 A1 20170524; BR 112018009733 A2 20181106; BR 112018009733 A8 20190226; CN 108367340 A 20180803; CN 108367340 B 20200414; EP 3377244 A1 20180926; MX 2018005970 A 20180905; US 2018326477 A1 20181115; WO 2017085164 A1 20170526
DOCDB simple family (application)
DE 102016122080 A 20161117; BR 112018009733 A 20161117; CN 201680067418 A 20161117; EP 16801730 A 20161117; EP 2016077950 W 20161117; MX 2018005970 A 20161117; US 201615776477 A 20161117