Global Patent Index - EP 3344801 A1

EP 3344801 A1 20180711 - IMPROVED METHOD FOR FORMING A PIPE LINING OF A CYLINDER HEAD AND CYLINDER HEAD THUS OBTAINED

Title (en)

IMPROVED METHOD FOR FORMING A PIPE LINING OF A CYLINDER HEAD AND CYLINDER HEAD THUS OBTAINED

Title (de)

VERBESSERTES VERFAHREN ZUR HERSTELLUNG EINER ROHRAUSKLEIDUNG EINES ZYLINDERKOPFES UND DADURCH HERGESTELLTER ZYLINDERKOPF

Title (fr)

PROCEDE AMELIORE DE FORMATION D'UN REVETEMENT DE CONDUIT DE CULASSE ET CULASSE AINSI OBTENUE

Publication

EP 3344801 A1 20180711 (FR)

Application

EP 16762776 A 20160905

Priority

  • FR 1558180 A 20150903
  • EP 2016070897 W 20160905

Abstract (en)

[origin: WO2017037303A1] The invention relates to a method for forming a lining on the walls of an inner pipe of a cast aluminium-alloy part, including inserting a cathode into the pipe, circulating an electrolyte solution in said pipe between the cathode and the walls of the pipe forming an anode, and applying a potential difference between the anode and the cathode, the method being characterised in that applying the potential difference between the anode and the cathode includes applying a series of DC voltage pulses to the anode. The invention also relates to a cylinder head in which the exhaust pipes are lined with a lining obtained by implementing said method.

IPC 8 full level

C25D 11/04 (2006.01); F02F 1/42 (2006.01)

CPC (source: EP KR US)

C25D 11/005 (2013.01 - EP KR US); C25D 11/024 (2013.01 - EP KR US); C25D 11/04 (2013.01 - EP KR US); C25D 11/08 (2013.01 - KR US); C25D 17/12 (2013.01 - EP KR US); C25D 21/18 (2013.01 - KR); F02F 1/004 (2013.01 - US); F02F 1/4264 (2013.01 - EP KR US); F05C 2203/0869 (2013.01 - US); F05C 2253/12 (2013.01 - US)

Citation (search report)

See references of WO 2017037303A1

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)

WO 2017037303 A1 20170309; CA 2997386 A1 20170309; CN 108368633 A 20180803; EP 3344801 A1 20180711; FR 3040712 A1 20170310; FR 3040712 B1 20191213; JP 2018527516 A 20180920; KR 20180081039 A 20180713; MX 2018002736 A 20180905; US 2018252180 A1 20180906

DOCDB simple family (application)

EP 2016070897 W 20160905; CA 2997386 A 20160905; CN 201680063920 A 20160905; EP 16762776 A 20160905; FR 1558180 A 20150903; JP 2018530963 A 20160905; KR 20187009047 A 20160905; MX 2018002736 A 20160905; US 201615756976 A 20160905