EP 2342441 A1 20110713 - INTERNAL COMBUSTION ENGINE PISTON WITH COOLING CHANNEL SAID PISTON COMPRISING A SEALING ELEMENT SEALING THE COOLING CHANNEL
Title (en)
INTERNAL COMBUSTION ENGINE PISTON WITH COOLING CHANNEL SAID PISTON COMPRISING A SEALING ELEMENT SEALING THE COOLING CHANNEL
Title (de)
KÜHLKANALKOLBEN EINER BRENNKRAFTMASCHINE MIT EINEM VERSCHLUSSELEMENT, DAS DEN KÜHLKANAL VERSCHLIESST
Title (fr)
PISTON AVEC CANAL DE REFROIDISSEMENT POUR UN MOTEUR À COMBUSTION INTERNE, AVEC UN ÉLÉMENT DE FERMETURE QUI FERME LE CANAL DE REFROIDISSEMENT
Publication
Application
Priority
- EP 2009006671 W 20090915
- DE 102008055848 A 20081104
Abstract (en)
[origin: WO2010051878A1] The invention relates to a piston (1) with a cooling channel, comprising a radially circumferential cooling channel (6) behind a ring land (3), wherein the cooling channel piston (1) is forged from a steel material and the cooling channel (6) created by machining between an upper piece (2) beneath the ring land (3) and a lower piece (7) above the piston boss (9) and piston skirt (10), wherein the cooling channel (6) running behind the ring land (3) in the direction of an upper side of the upper piece (2). According to the invention, the piston (1) with a cooling channel has a support region (AB) facing outwards above the piston boss (9) and piston skirt (10) thereof, wherein a sealing element (14) is arranged and fixed between the lower edge of the ring land (3) and the support region (AB) which seals the cooling channel (6) after production thereof.
IPC 8 full level
F02F 3/22 (2006.01)
CPC (source: EP KR US)
F02F 3/16 (2013.01 - KR); F02F 3/22 (2013.01 - EP KR US); F02F 2200/04 (2013.01 - EP US); F05C 2201/0448 (2013.01 - EP US)
Citation (search report)
See references of WO 2010051878A1
Designated contracting state (EPC)
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 SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008055848 A1 20100506; EP 2342441 A1 20110713; EP 2342441 B1 20181114; JP 2012507651 A 20120329; KR 20110094273 A 20110823; US 2011265744 A1 20111103; US 8925511 B2 20150106; WO 2010051878 A1 20100514
DOCDB simple family (application)
DE 102008055848 A 20081104; EP 09778534 A 20090915; EP 2009006671 W 20090915; JP 2011533554 A 20090915; KR 20117009791 A 20090915; US 200913127540 A 20090915