Global Patent Index - EP 2681435 A2

EP 2681435 A2 20140108 - PISTON FOR A COMBUSTION ENGINE AND METHOD FOR PRODUCING SAME

Title (en)

PISTON FOR A COMBUSTION ENGINE AND METHOD FOR PRODUCING SAME

Title (de)

KOLBEN FÜR EINEN VERBRENNUNGSMOTOR SOWIE VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

PISTON POUR UN MOTEUR À COMBUSTION INTERNE ET PROCÉDÉ DE FABRICATION

Publication

EP 2681435 A2 20140108 (DE)

Application

EP 12727232 A 20120302

Priority

  • DE 102011013143 A 20110304
  • DE 2012000231 W 20120302

Abstract (en)

[origin: US2012222645A1] The present invention relates to a piston (10, 110, 210) for an internal combustion engine, having a piston base body (11, 111, 211) and a piston ring element (12, 112, 212), whereby the piston base body (11, 111, 211) has at least an inner region (14) of a piston crown (13) as well as a piston skirt (16), which is provided with pin bosses (18) having pin bores (17), whereby the piston ring element (12, 112, 212) has at least an outer region (21) of a piston crown (13) having a circumferential top land (22), and a circumferential ring belt (23) provided with ring grooves (24). According to the invention, it is provided that piston base body (11, 111, 211) and piston ring element (12, 112, 212) are joined together by way of corresponding, conical joining surfaces (32, 33, 27, 28; 135, 136; 232, 233, 227, 228) configured on them. The present invention furthermore relates to a method for the production of such a piston.

IPC 8 full level

F02F 3/00 (2006.01); F02F 3/22 (2006.01)

CPC (source: EP US)

F02F 3/00 (2013.01 - US); F02F 3/003 (2013.01 - EP US); F02F 3/22 (2013.01 - EP US); F02F 2003/0061 (2013.01 - EP); F05C 2201/021 (2013.01 - US); F05C 2201/0448 (2013.01 - US); Y10T 29/49252 (2015.01 - EP US)

Citation (search report)

See references of WO 2012119590A2

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)

US 2012222645 A1 20120906; CN 103429878 A 20131204; CN 103429878 B 20170329; DE 102011013143 A1 20120906; EP 2681435 A2 20140108; EP 2681435 B1 20190508; US 2014190443 A1 20140710; US 9163580 B2 20151020; WO 2012119590 A2 20120913; WO 2012119590 A3 20121129

DOCDB simple family (application)

US 201113066561 A 20110418; CN 201280010941 A 20120302; DE 102011013143 A 20110304; DE 2012000231 W 20120302; EP 12727232 A 20120302; US 201414195921 A 20140304