Piston structure

• Main Authors: HE SHENGQIANG, ZENG QINGXING, WEI QIANG, HUANG PENG
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• 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 relates to the technical field of engines, in particular to a piston structure. The piston structure comprises a piston body, an oil inlet pipe, an oil outlet pipe and an inner cooling oil cavity communicated with the oil inlet pipe and the oil outlet pipe. The inner cooling oil cavity is formed in the piston body; the inner cooling oil cavity comprises a first cavity body and a second cavity body which are communicated with each other, the first cavity body is provided with a spherical first side wall, the first side wall is arched towards one side far away from the center of the first cavity body, the second cavity body is provided with a spherical second side wall, and the second side wall is arched towards one side far away from the center of the second cavity body; when the piston body moves, a part of the cooling engine oil impacts the first side wall of the first cavity to form a first vortex in the first cavity, a part of the cooling engine oil impacts the second side wall of the sec