Title (en)

METHOD FOR MAKING A CYLINDER HEAD WITH INTEGRATED VALVE SEATS AND CYLINDER HEAD WITH INTEGRATED VALVE SEATS

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES ZYLINDERKOPFES MIT INTEGRIERTEN VENTILSITZE UND DER ZYLINDERKOPF

Title (fr)

PROCEDE DE FABRICATION D'UNE CULASSE A SIEGES DE SOUPAPE INTEGRES ET CULASSE A SIEGES DE SOUPAPE INTEGRES

Publication

EP 0995027 A1 20000426 (FR)

Application

EP 98930847 A 19980612

Priority

• FR 9801232 W 19980612
• FR 9708806 A 19970710

Abstract (en)

[origin: FR2765915A1] The invention concerns a method comprising the following steps: obtaining a cylinder head made of a light unrefined foundry alloy comprising valve seat zones; carrying out a transferred plasma arc deposition on the seat zones of a coating layer of an alloy with the following composition, in w.t. %: Ni 13-20, Mo 2-8, Co 0-10, Fe 2-8, Si 2-4, B 1-3, Cu the remainder; machining the coat to obtain the desired shape and surface texture for the integrated valve seats: The invention is applicable to internal combustion engine aluminium cylinder heads.

IPC 1-7

F02F 1/24; F01L 3/02

IPC 8 full level

F01L 3/02 (2006.01); F02F 1/24 (2006.01)

CPC (source: EP)

F01L 3/02 (2013.01); F02F 1/24 (2013.01)

Citation (search report)

See references of WO 9902839A1

Designated contracting state (EPC)

DE ES GB IT

DOCDB simple family (publication)

FR 2765915 A1 19990115; FR 2765915 B1 19990827; DE 69812101 D1 20030417; DE 69812101 T2 20031120; EP 0995027 A1 20000426; EP 0995027 B1 20030312; ES 2194329 T3 20031116; WO 9902839 A1 19990121

DOCDB simple family (application)

FR 9708806 A 19970710; DE 69812101 T 19980612; EP 98930847 A 19980612; ES 98930847 T 19980612; FR 9801232 W 19980612