EP 2880293 A1 20150610 - PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KOLBEN FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
PISTON POUR UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102012014188 A 20120718
- DE 2013000403 W 20130718
Abstract (en)
[origin: WO2014012530A1] The present invention relates to a piston (10, 110) for an internal combustion engine having a piston head (13, 113) and a piston skirt (14, 114), the piston (10, 110) comprising a piston base (11, 111) and a piston ring element (12, 112). The invention is characterized in that the piston base (11, 111) has a combustion recess (21, 121) which is radially offset and/or tilted relative to the center axis (M) of the piston (10, 110), a portion (19a) of a piston crown and the piston skirt (14, 114), in that the piston ring element (12, 112) has a portion (19b) of a piston crown, a circumferential fire land (22, 122) and a circumferential ring section (23, 123) with ring grooves, in that the piston base (11, 111) and the piston ring element (12, 112) form a circumferential cooling channel (24, 124) that extends between an outer lateral surface (25, 125) in the region of the combustion recess (21, 121) and an inner lateral surface (26, 126) in the region of the ring section (23, 123), in that the piston base (11, 111) and the piston ring element (12, 112) have a circumferential seam (28, 128) in the region of the piston crown (19a, 19b), via which they are non-detachably connected to one another.
IPC 8 full level
F02F 3/22 (2006.01); F02B 23/06 (2006.01); F02F 3/00 (2006.01)
CPC (source: CN EP US)
F02B 23/0672 (2013.01 - CN EP US); F02B 23/069 (2013.01 - CN EP US); F02F 3/0015 (2013.01 - US); F02F 3/22 (2013.01 - CN EP US); F02F 2003/0061 (2013.01 - CN EP US); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2014012530A1
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)
WO 2014012530 A1 20140123; BR 112015001042 A2 20170627; CN 104487687 A 20150401; DE 102012014188 A1 20140123; EP 2880293 A1 20150610; JP 2015522136 A 20150803; US 2015176524 A1 20150625
DOCDB simple family (application)
DE 2013000403 W 20130718; BR 112015001042 A 20130718; CN 201380038402 A 20130718; DE 102012014188 A 20120718; EP 13753264 A 20130718; JP 2015521976 A 20130718; US 201314415197 A 20130718