EP 2679792 A4 20141119 - INTERNAL COMBUSTION ENGINE HEAD-COVER STRUCTURE
Title (en)
INTERNAL COMBUSTION ENGINE HEAD-COVER STRUCTURE
Title (de)
KOPFABDECKUNGSSTRUKTUR FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
STRUCTURE DE COUVRE-CULASSE DE MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- JP 2011035549 A 20110222
- JP 2012054185 W 20120222
Abstract (en)
[origin: EP2679792A1] The goal of the present invention is to provide an internal combustion engine head-cover structure capable of suppressing an increase in the wall thickness and size of a head cover and enhancing the rigidity of the head cover. An internal combustion engine (E) head-cover structure is provided with the following: a covering part (11) which is disposed on a cylinder head (2) and which covers, from above, a valve gear (3) that includes cam shafts (31, 32); an outer peripheral edge part (12) which is provided along the outer peripheral edge of the covering part (11) and is fastened to the cylinder head (2); and a plurality of upper bearing parts (13) which are provided integrally with the covering part (11) and the outer peripheral edge part (12) and rotatably hold the cam shafts (31, 32) in cooperation with a plurality of lower bearing parts (23) provided on the cylinder head (2). The internal combustion engine (E) head-cover structure is characterized by the following: the upper bearing parts (13) are fastened and fixed to the lower bearing parts (23); and the covering part (11) has an expansion part (111) expanding in a substantially hemispherical shape between adjacent upper bearing parts (13).
IPC 8 full level
F02F 7/00 (2006.01)
CPC (source: EP)
F02F 7/006 (2013.01); F01L 2001/0476 (2013.01)
Citation (search report)
- [A] DE 4323073 A1 19950112 - AUDI AG [DE]
- [A] JP H0560014 A 19930309 - YAMAHA MOTOR CO LTD
- [A] US 2008173273 A1 20080724 - CUNNINGHAM ROBERT R [US]
- [A] DE 202008013310 U1 20090212 - REINZ DICHTUNG GMBH [DE]
- [A] FR 2867520 A1 20050916 - RENAULT SAS [FR]
- [A] DE 20120912 U1 20020606 - VOLKSWAGEN AG [DE]
- See references of WO 2012115123A1
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)
EP 2679792 A1 20140101; EP 2679792 A4 20141119; EP 2679792 B1 20160120; CN 103403332 A 20131120; CN 103403332 B 20151125; JP 5581438 B2 20140827; JP WO2012115123 A1 20140707; WO 2012115123 A1 20120830
DOCDB simple family (application)
EP 12749912 A 20120222; CN 201280010029 A 20120222; JP 2012054185 W 20120222; JP 2013501082 A 20120222