Novel steel piston

• Main Authors: XIONG PEIYOU, SUN CHENYUAN, WANG ZHILONG, GAO YONGCHUN, MA XUEJUN, ZHAO WENBIN, SONG SHUFENG, MA LIGUO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2019
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The utility model provides a novel steel piston. The piston comprises a piston body and a piston pin boss which are arranged in a matched mode. First threads are arranged in an inner cavity of the piston body, second threads are arranged on the outer circumferential face of the upper portion of the piston pin seat, the first threads are matched with the second threads, the piston body is connected with the piston pin seat through the first threads and the second threads, and a closed inner cooling oil cavity is formed by the piston body and the upper portion of the piston pin seat. According to the technical scheme of the utility model, solderless, processing and manufacturing convenience, production efficiency is high, the inner cooling oil cavity is not prone to being blocked, the cooling effect of the inner cooling oil cavity is effectively guaranteed, carbon is not prone to being accumulated in the inner cooling oil cavity, the phenomena of piston cracking failure and the like are reduced, the limitation