Global Patent Index - EP 1322794 A2

EP 1322794 A2 20030702 - THERMALLY APPLIED COATING FOR PISTON RINGS, CONSISTING OF MECHANICALLY ALLOYED POWDERS

Title (en)

THERMALLY APPLIED COATING FOR PISTON RINGS, CONSISTING OF MECHANICALLY ALLOYED POWDERS

Title (de)

THERMISCH AUFGETRAGENE BESCHICHTUNG FÜR KOLBENRINGE AUS MECHANISCH LEGIERTEN PULVERN

Title (fr)

REVETEMENT APPLIQUE PAR VOIE THERMIQUE, DESTINE A DES SEGMENTS DE PISTON ET CONSTITUE DE POUDRES ALLIEES MECANIQUEMENT

Publication

EP 1322794 A2 20030702 (DE)

Application

EP 01976101 A 20010817

Priority

  • DE 10046956 A 20000921
  • EP 0109514 W 20010817

Abstract (en)

[origin: WO0224970A2] The invention relates to a wear-resistant coating used for bearing surfaces and flanks of piston rings in internal combustion engines. The wear-resistant inventive coating is obtained by mechanically alloying powders which form a metallic matrix with hard material dispersoids and lubricant material dispersoids. The coating is then thermally applied to the workpieces, especially by means of high velocity oxygen fuel spraying (HVOF). The workpieces coated are bearing surfaces and parts of flanks pertaining to piston rings in internal combustion engines.

IPC 1-7

C23C 4/06

IPC 8 full level

F02F 5/00 (2006.01); B22F 1/00 (2006.01); C22C 1/10 (2006.01); C23C 4/04 (2006.01); C23C 4/06 (2016.01); F16J 9/26 (2006.01)

CPC (source: EP US)

C22C 1/1084 (2013.01 - EP US); C23C 4/06 (2013.01 - EP US); Y10S 428/937 (2013.01 - EP US); Y10T 29/49281 (2015.01 - EP US); Y10T 428/12014 (2015.01 - EP US); Y10T 428/12063 (2015.01 - EP US); Y10T 428/12174 (2015.01 - EP US); Y10T 428/12806 (2015.01 - EP US); Y10T 428/12826 (2015.01 - EP US); Y10T 428/12847 (2015.01 - EP US)

Citation (search report)

See references of WO 0224970A2

Designated contracting state (EPC)

FR GB PT

DOCDB simple family (publication)

WO 0224970 A2 20020328; WO 0224970 A3 20020627; DE 10046956 A1 20020425; DE 10046956 C2 20020725; EP 1322794 A2 20030702; EP 1322794 B1 20080528; JP 2004510050 A 20040402; PT 1322794 E 20080730; US 2003180565 A1 20030925; US 6887585 B2 20050503

DOCDB simple family (application)

EP 0109514 W 20010817; DE 10046956 A 20000921; EP 01976101 A 20010817; JP 2002529560 A 20010817; PT 01976101 T 20010817; US 36334103 A 20030303