Piston for e.g. combustion chamber of compression ignition internal combustion engine, has bowl presenting central spigot having protrusion extending towards wall and bottom of bowl such that fuel spray swirls without any deposit

The piston (14) has a cavity machined around a central axis of the piston to form a surface forming bowl (18). The surface forming bowl presents a central spigot (20) whose axis of symmetry merges with the central axis. The central spigot has a protrusion (25) extending towards a peripheral wall (23...

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Bibliographische Detailangaben
Hauptverfasser:	HENNEQUIN MANUELA, LAHJAILY HAMID, HILAIRE NATHALIE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES 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 MECHANICAL ENGINEERING 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 piston (14) has a cavity machined around a central axis of the piston to form a surface forming bowl (18). The surface forming bowl presents a central spigot (20) whose axis of symmetry merges with the central axis. The central spigot has a protrusion (25) extending towards a peripheral wall (23) and towards a bottom of the bowl such that fuel spray swirls without any deposit. Piston pour chambre de combustion de moteur à injection directe et à allumage par compression formée par un cylindre dans lequel un piston (14) est adapté à coulisser, le piston (14) présentant une cavité en forme de bol (18), la surface formant bol (18) présentant un téton central (20) en saillie et une partie périphérique (23) entourée par une zone de chasse annulaire (24), caractérisée en ce que le téton central (20) comprend au sommet, une protubérance s'étendant vers la partie périphérique (23) et vers le fond du bol (18).