Four-cylinder internal combustion engine for motor vehicle, has cams arranged such that law of lifting of valves in set of cylinders is different from law of lifting of valves in another set of cylinders, and controlling lifting of valves

The engine has two sets of cylinders comprising respective exhaust valves for exhausting burnt gas, and cylinder ignition units for consecutively igniting the cylinders. Cams control lifting of the valves, and are integrated with a camshaft that is rotated by a crankshaft, where laws of lifting (C28...

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Bibliographische Detailangaben
1. Verfasser:	WILLIAM JOHANN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The engine has two sets of cylinders comprising respective exhaust valves for exhausting burnt gas, and cylinder ignition units for consecutively igniting the cylinders. Cams control lifting of the valves, and are integrated with a camshaft that is rotated by a crankshaft, where laws of lifting (C280, C460) of the respective valves are based on a rotation angle (ALPHA) of the crankshaft. The cams are arranged such that the law of lifting (C280) of each valve in one set of cylinders is different from the law of lifting (C460) of each valve in the other set of cylinders. L'invention concerne un moteur à combustion interne comportant au moins un premier et un deuxième cylindre qui comportent chacun au moins une soupape d'échappement des gaz brûlés, des moyens d'allumage de chaque cylindre qui sont conçus pour allumer consécutivement ledit premier et ledit deuxième cylindre, une came pour chaque soupape d'échappement afin de commander la levée de chaque soupape d'échappement, chaque came étant solidaire d'un arbre de came mis en rotation au moyen d'un vilebrequin et la loi de levée (C280, C460) de chaque soupape d'échappement étant fonction de l'angle de rotation (ALPHA) du vilebrequin.Selon l'invention, les deux cames sont conçues de telle manière que la loi de levée de chaque soupape d'échappement du premier cylindre est différente de la loi de levée de chaque soupape d'échappement du deuxième cylindre.