PISTON STRUCTURE FOR ENGINE

• Main Authors: MORI, TSUNEHIRO, KOIZUMI, MASAHIRO, HANZAWA, TETSUYA, FUKUDA, YUKIYOSHI, SUDOU, YASUHIRO, TOYODA, KAZUO, SUMITANI, AKIRA, NISHIMORI, KAZUYA, TAKUMA, SHUJI, HIRATA, KOICHI, KANDA, YASUNORI, KUBO, KOUJI, KIKUCHI, MASAKAZU
• Format: Patent
• Language: English; French; Japanese
• Published: 06.03.2014
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BEARINGS; BLASTING; COMBUSTION ENGINES; CYLINDERS; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PISTONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SEALINGS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

A piston structure for an engine is provided with: a piston (1); a connecting rod (10) which has a small end section (10a) connected to the piston (1) and also has a large end section (10b) connected to a crankshaft; a piston pin (2) which has a hollow cross-section and which connects the piston (1) and the small end section (10a) of the connecting rod (10); and a dynamic vibration absorber (20) which is provided within the piston pin (2) and which, in the combustion stroke, prevents the piston (1), the piston pin (2), and the small end section (10a) of the connecting rod (10) from integrally resonating relative to the large end section (10b) of the connecting rod (10). L'invention concerne une structure de piston destinée à un moteur, comportant : un piston (1) ; une bielle (10) qui a une petite section extrême (10a) reliée au piston (1), ainsi qu'une grande section extrême (10b) reliée à un vilebrequin ; un axe de piston (2) qui a une coupe transversale creuse et qui relie le piston (1) et la petite section extrême (10a) de la bielle (10) ; et un absorbeur de vibration dynamique (20) qui est ménagé à l'intérieur de l'axe de piston (2) et qui, dans la course de combustion, empêche le piston (1), l'axe de piston (2), et la petite section extrême (10a) de la bielle (10) de résonner en un seul bloc par rapport à la grande section extrême (10b) de la bielle (10).