EP 2893177 A1 20150715 - PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KOLBEN FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
PISTON POUR MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102012014195 A 20120718
- DE 2013000402 W 20130718
Abstract (en)
[origin: WO2015007256A1] The present invention relates to a piston (10) for an internal combustion engine, the piston having a piston stem (14) and a piston head (13) with an encircling ring section (21) and with an encircling cooling duct (24) which is closed by a closure element (26), wherein an encircling recess (23) is formed between the piston head (13) and the piston stem (14). According to the invention, it is provided that the closure element (26) consists of at least two partial elements (27, 28), that each partial element (27, 28) has a radially aligned base plate (29) and at least one encircling collar (31) which is aligned axially on the outer edge (29a) of the base plate (29) and is accommodated in at least one outer fold (34) running below the ring section (21).
IPC 8 full level
CPC (source: CN EP US)
F02F 3/003 (2013.01 - CN EP US); F02F 3/22 (2013.01 - CN EP US); F02F 3/225 (2013.01 - US); F01M 1/08 (2013.01 - US); F01P 1/04 (2013.01 - US); F02B 2075/025 (2013.01 - US); F02F 1/22 (2013.01 - US); F02F 3/20 (2013.01 - US); F02F 2003/0053 (2013.01 - US); F02F 2003/0061 (2013.01 - US)
Citation (search report)
See references of WO 2015007256A1
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)
DE 102012014195 A1 20140123; BR 112015001068 A2 20170627; CN 104520567 A 20150415; EP 2893177 A1 20150715; EP 2893177 B1 20161228; JP 2016515175 A 20160526; JP 6195928 B2 20170913; US 2015322887 A1 20151112; US 9784211 B2 20171010; WO 2015007256 A1 20150122; WO 2015007256 A8 20150212
DOCDB simple family (application)
DE 102012014195 A 20120718; BR 112015001068 A 20130718; CN 201380038374 A 20130718; DE 2013000402 W 20130718; EP 13765618 A 20130718; JP 2015530291 A 20130718; US 201314415251 A 20130718