EP 2336521 A1 20110622 - A cylinder arrangement for an internal combustion engine
Title (en)
A cylinder arrangement for an internal combustion engine
Title (de)
Zylinderanordnung für einen Verbrennungsmotor
Title (fr)
Agencement de cylindre d'un moteur à combustion interne
Publication
Application
Priority
EP 09179281 A 20091215
Abstract (en)
The invention relates to a cylinder arrangement (1) for an internal combustion engine, including a cylinder (2) in which a piston (3) is arranged to be movable along a longitudinal cylinder axis (A) to and fro between a top dead centre position and a bottom dead centre position, wherein in the cylinder (2) a combustion chamber (4) is defined by a cylinder cover (5), by a cylinder wall (21) of the cylinder (2) and by a piston surface (31) of the piston (3). At least one charge-cycle valve (6, 61, 62) is provided in a gas exchange opening (7) of the cylinder cover (5), wherein the charge-cycle valve (6, 61, 62) includes a valve disk (61) cooperating in the operation state with a valve seat (71, 711, 712) of the gas exchange opening (7) in such a way, that in a closed position of the charge-cycle valve (6, 61, 62) the combustion chamber (4) is sealed with respect to a gas feeding conduct (8). According to the invention, the valve seat (71, 711, 712) is movably arranged between a high-ratio position (HR) and a low-ratio position (LR) so that within the combustion chamber (4) a compression-ratio is adjustable to a pre-settable compression-ratio value. Furthermore the invention relates to a method for operating an internal combustion engine as well as to an internal combustion engine having a cylinder arrangement according to the invention.
IPC 8 full level
F02B 75/04 (2006.01); F01L 3/22 (2006.01); F02D 15/04 (2006.01)
CPC (source: EP)
F01L 3/22 (2013.01); F02B 75/042 (2013.01); F02D 15/04 (2013.01)
Citation (search report)
- [X] JP S58165544 A 19830930 - HITACHI SHIPBUILDING ENG CO
- [X] DE 10227769 A1 20040108 - DAIMLER CHRYSLER AG [DE]
- [X] EP 0330638 A1 19890830 - POHJOLA JORMA
- [X] EP 0837226 A1 19980422 - BAYERISCHE MOTOREN WERKE AG [DE]
- [X] DE 3801102 A1 19890727 - SCHMID ERICH [DE]
- [X] JP 2003328797 A 20031119 - FUJI HEAVY IND LTD
- [XA] JP H1150866 A 19990223 - TOYOTA MOTOR CORP
- [A] DE 10311229 A1 20040930 - IAV GMBH [DE]
- [A] WO 9702417 A1 19970123 - FANJA LTD [GB], et al
- [A] US 996378 A 19110627 - THOMSON ELIHU [US]
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)
DOCDB simple family (application)
EP 09179281 A 20091215